An inorganic, naturally occurring, homogenous solid having a specific chemical makeup and organised (crystalline) atomic structures is referred to as a mineral.
Neither organic life nor the goods made from or by organic life are included in the term "inorganic."
Natural Formation: A mineral must develop naturally; it cannot be fabricated, manufactured, or produced in a laboratory.
A mineral must be chemically and physically uniform at the atomic level to be considered a homogeneous solid.
Due to the mineral's uniformity, its physical characteristics—such as hardness, density, and streak—are entirely predictable.
When a mineral has a defined chemical composition, all of its occurrences fall within a narrow range of chemical composition variations and the atoms that make up the mineral must exist in a predetermined arrangement.atomic structure with order
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Describe the structure and makeup of DNA.
Answer:
The explanation is where the answer is. You may copy word for word if you need to.
Explanation:
DNA is 2 linked strands that twist around each other. Imagine scwiggle lines intertwining with each other but seperated with an horitonzal line. The shape is also known as a double helix. Each strand as something called the backbone. The backbone is made of alternating sugar (deoxyribose) is the scientific word for it, and the backbone is also made of phosphate groups. The backbone is attached to 4 diffrent figures. The are represented with letters. (A) = Adenine. (C) = Cytosine. (G) = Guanine. Or (T) Thymine (T).
a process in which two atoms collide and their nuclei merge, forming a new atom and releasing energy.
A process in which the two atoms collide and their nuclei merge and formed a new atom and releases the energy called nuclear fusion reaction.
The nuclear fusion is the process when the two or more atoms collide with each other and their nuclei fuse to form single nucleus and releases the large amount of energy. The nuclear fusion produce more energy as compared to the nuclear fission. It requires the high temperature and pressure. Nuclear fusion produces large amount of energy.
Nuclear fusion require the large amount of heat energy for the process to occur. The nuclear fission does not require large amount of energy.
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Johnny had a balloon filled with 0.222 moles of hydrogen gas. When his lab partner Marisa lit the balloon with a candle on the end of a long stick it burst into a fireball making water. Johnny and Marisa realized that the hydrogen in the balloon reacted with the oxygen in the air to make water according to the equation:
2H2 + O2 --> 2H2O
Their teacher asked them to find out how many moles of oxygen were burned and how many moles of water were formed.
To solve this we must be knowing each and every concept related to moles. Therefore, 0.11moles of oxygen were burned and 0.222 moles of water were formed.
What is mole?A mole is merely a measuring unit. In reality, it is among the International System on Units' seven foundation units (SI). When basically determines are insufficient, new units are created.
Chemical reactions frequently occur at levels that use grams would be inappropriate, but using actual figures of atoms/molecules/ions would also be misleading. As a result, scientists devised the mole for bridge the divide between extremely small and extremely huge numbers.
2H[tex]_2[/tex] + O[tex]_2[/tex] [tex]\rightarrow[/tex] 2H[tex]_2[/tex]O
The mole ratio between hydrogen gas and oxygen gas is 2:1
moles of hydrogen gas = 0.222 moles
moles of oxygen gas =0.11moles
moles of water formed = 0.222 moles
Therefore, 0.11moles of oxygen were burned and 0.222 moles of water were formed.
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Which pair of elements can combine to form ionic bonds? a. H and CIa
b. H and N
c. S and Sr
d. Xe and F
How many carbon atoms are there in 1 mole of C2H4?
The molecular formula for ethylene is C2H4, and it contains two carbon atoms and four hydrogen atoms.
A compound is anything created when two or more separate chemical elements are mixed together in a specific proportion.
Chemical connections that are challenging to break are created when the elements interact with one another. These bonds develop as a result of atoms sharing or trading electrons.
Salts and molecular compounds are the two categories into which compounds can be divided. Covalent bonds hold the atoms together in molecular molecules. Ionic bonds hold it together in salts. Every compound is composed of one of these two types of bonds.
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in case of accidental contact with chemicals, how long should the eyes be flushed at the eyewash station? select one: 5 minutes until the irritation is gone 15 minutes 30 minutes
In case of accidental contact with chemicals, the eyes should be flushed at the eyewash station for at least 15 minutes. Correct answer: letter B.
Longer flushing times may be necessary if the chemical is an irritant or if the irritation persists.
When flushing eyes with water due to contact with chemicals, it is important to ensure that the water is clean and clear. You should also ensure that the water pressure is sufficient to completely flush out any chemical residue. It is also important to ensure that the water is not too hot or too cold. If the water is too hot or cold it can cause further irritation and damage to the eyes.
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Can Na and O form an ionic compound?
Yes, sodium (Na) and oxygen (O) can form an ionic compound. When they react, sodium will lose an electron to become a positive ion (Na+) and oxygen will gain an electron to become a negative ion (O2-).
The ionic compound sodium oxide (Na2O). Sodium oxide is a white crystalline solid that is formed by heating sodium metal in the presence of oxygen. It is a basic oxide, meaning that it reacts with water to form a base (sodium hydroxide, NaOH) and it is also called "soda ash". It has a wide range of industrial uses including glass production, soap making and paper production. It is important to note that in nature, Sodium (Na) and Oxygen (O) are not likely to react with each other in their pure form, as sodium is a highly reactive metal that reacts with water and oxygen in the air, and oxygen is a gas. But in industrial and laboratory settings, where conditions can be controlled, it is possible to react them to form an ionic compound like Na2O.
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What is oxidation and reduction in terms of electrons explain Giving one example?
The oxidation and reduction in terms of electrons is the gain of the electrons is called as the reduction and the loss of the electrons is called as the reduction.
The oxidation is defined as is the loss of the electrons or the increase in the oxidation number. The reduction is defined as the gain of the electrons or the decrease in the oxidation number. The example is given as :
Cu²⁺ + Zn ----> Zn²⁺ + Cu
This is reaction the copper undergoes the oxidation as oxidation number increases. The zinc undergoes the reduction as the oxidation number decreases. This reaction oxidation - reduction reaction is redox reaction.
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humans are not the only animals that pollute the air. T/F
Answer: True
Explanation: Animals, livestock animals specifically, can easily cause air pollution. For example, their manure's ammonia harms our air. Methane is also a hazardous chemical to our atmosphere that can be caused by livestock waste.
What is the volume of 1.00 mole of a gas?
The volume of 1.00 mole of a gas is 22.4 x 10⁻²m³.
Volume is the measure of a three-dimensional space. It is often quantified numerically using the SI derived units (such as the cubic metre and litre). The volume of a container is generally understood to be the capacity of the container; i.e., the amount of a fluid (liquid or gas) that the container could hold, rather than the amount of a space the container itself displaces.
The volume of 1 mole of a gas
PV = nRT
V = RT / P = 0.082 X 273 (as p = 1)
V = 22.386 = 22.4 L
= 22.4 ₓ 10⁻³m³
22.4 ˣ 10⁻²m³
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use the bond dissociation energies of H2 and of a typical carbon-carbon bond to___.
Use the bond dissociation energies of H2 and of a typical carbon-carbon bond to determine the stronger bond.
The energy required for one mole of a divalent molecule to dissociate into individual atoms, often in the gaseous state, is known as bond dissociation. Because carbon monoxide has 10 electrons in its outermost shell, resulting in six shared electrons in 3 bonding orbitals, the carbon and oxygen in carbon monoxide form a triple bond as opposed to the double bond created by other carbon compounds. The remaining two electrons are from oxygen, whereas the other two are from carbon. As a result, when two oxygen electrons are located in the same orbital, a dative bond will be created.
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What is the uneven distribution of charge on a water molecule called ?
Answer:
polar molecule
Explanation:
Answer:
Polar molecule
Explanation:
It is called a polar molecule which results in the uneven distribution of charge.
Water is polar because the electronegativities of oxygen and hydrogen are different.
Electronegativity is the ability of an atom to attract a bonding pair of electrons in a covalent bond. As the number of protons in the nucleus increases, the electronegativity or attraction increases. Oxygen has 8 protons, while hydrogen has 1 proton, hence oxygen is more electronegative than hydrogen.
This gives oxygen a slightly negative charge, which pulls the hydrogen electrons towards the oxygen. Hydrogen has a slightly positive charge as it has a lower electronegativity value, so is less able to attract the electrons from oxygen.
This uneven distribution of charges brings about polarity in water.
A large difference in electronegativity makes a compound polar, which you can also tell from using a Pauling scale (a measure of electronegativity).
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How is a balanced chemical equation similar to a recipe? Explain
Explanation:
A balanced chemical equation is very similar to a recipe. Clicking on the s'more on the left will show you more of the similarities between cooking and stoichiometry. A balanced chemical equation gives you the ingredients (reactants) and the final food (products).
the weight of an alloy is 45.6 g. the alloy includes 3.1 g of carbon. determine the percentage (by mass) of carbon in this alloy.
Metallic bonding is a known characteristic of alloys. The components of an alloy are measured in terms of their mass percentage for practically all practical uses. The components of alloys are, however, quantified in terms of their atomic fractions for specific scientific research.
What are the parameters of calculating weight of an alloy?Unfortunately, a two metal alloy is the only one that can be used to determine an alloy's weight fractions from the alloy's density.
We must first utilize the following equation: where x is the weight percentage of metal A and the rhos are the corresponding densities. Solving for x is all that is required.
Therefore, To determine the weight of alloys in a variety of shapes, such as round bars, hexagonal sheets, flat bars, and tubes, use our weight calculator.
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Which of the following is NOT an example of how biotic factors interact with abiotic factors in an ecosystem?
A lion preys on a herd of gazelle.
⊝
Plants remove carbon dioxide from the air and add oxygen.
⊝
Animals cause erosion by digging in the dirt.
⊝
A lizard raises its body temperature by using heat from the Sun.
⊝
CLEAR ALL
Answer:
A lion preys on a herd of gazelle.
Explanation:
lions and gazelles are both biotic factors since they are living organisms.
hydrogen cyanide gas can be made by a two step process. first, ammonia is reacted with oxygen gas to give nitrogen monoxide and water vapor. in the next step, nitrogen monoxide is reacted with methane (ch4) to give hydrogen cyanide gas. the by-products in the second step are water and hydrogen gas. when 22.1 g of ammonia and 28.6 g of methane are used, how many grams of hydrogen cyanide can be produced?
There will be 35.1 grams of hydrogen cyanide can be produced
For the first reaction, our reactants are:
NH₃ andO
Products include H₂O and NO
For the second reaction, our reactants are:
CH₄ and NO
The products are:H₂, H₂O and HCN.
The reaction are
4NH₃ and 5O₂ → 6H₂O + 4NO
2NO and 2CH₄ → 2HCN + H₂ + 2H₂O
4 moles of ammonia can make 4 moles of NO in the first stage, hence the ratio is 1:1.
22.1 g . 1mol / 17 g = 1.3 moles of ammonia
1.3 moles of NO have been created
28.6 g . 1 mol / 16 g = 1.7875 moles of methane.
2:2 is the ratio. We therefore need 1.7875 moles of NO for every 1.7875 moles of methane.
Moles are identical. This is the limiting reactant since there is not enough NO.
The product ratio is also 2:2.
1.3 moles of HCN were created from 1.3 moles of NO.
By converting moles to mass, we get 1.3 mol. 27 g/mol = 35.1 g
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How CH4 is formed formula?
CH4 is formed by four hydrogen atoms bonded with a single carbon atom by single bond.
CH4 named as Methane in IUPAC nomenclature. Methane is a chemical emulsion having the chemical formula CH4. It's a colourless, odorless and non-toxic ignitable gas. It's slightly answerable in H2O. The boiling point of methane is −162 °C and the melting point is−182.5 °C. The hybridization of CH4 is sp3.And the bond length of four carbon hydrogen in methane is 109 pm and the bond strength is 429kJmol- 1.Methane can be prepared by protonation of CH3Li or a methyl Grignard reagent such as CH3MgCl. And can be made from anhydrous C2H3NaO2 and dry NaOH, mixed and heated above 300 °C (with Na2CO3 as byproduct).
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The electron in the hydrogen atom is initially in the n = 5 orbit. The atom absorbs a photon with a frequency of 6. 446 x 1013sec-1. How far is the electron from the nucleus after the photon is absorbed?
The photon is absorbed, leaving the electron 3.18 x 10-10 m away from the nucleus.
Describe energy.
In this instance, the energy difference between the n=5 and n=6 orbits determines the energy of the photon, which is equal to the energy difference between the two orbits. E = -2.178E-18/n2, where n is the primary quantum number, can be used to calculate the energy of the photon as a result, which is equal to the energy difference between the two orbits. We obtain an energy difference of 1.092E-18 J by plugging in n=5 for the initial orbit and n=6 for the final orbit.The equation E=hf can be used to determine the frequency of the photon because the energy of the photon is equal to the energy difference between the two orbits.To learn more about energy here
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in the early 1960s, radioactive strontium-90 was released during atmospheric testing of nuclear weapons and got into the bones of people alive at the time. if the half-life of strontium-90 is 28 years, what fraction of the strontium-90 absorbed in 1964 remained in people's bones in 1999?
The fraction of strontium-90 that remained in people's bones in 1999 would be 0.25, or one quarter. This is calculated by raising 0.5 (the decay constant of strontium-90) to the power of (1999 - 1964) / 28 (the half-life of strontium-90).
The decay of a radioactive element is a logarithmic process, meaning that an exponentially decreasing amount of the element remains after each half-life. In the case of strontium-90, the amount of the element remaining in the bones of people alive in 1964 would decrease by half after 28 years.
In 1999, 35 years after 1964, this means that only one quarter (0.25) of the original amount of strontium-90 would remain in people's bones.
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10)1. how many moles are represented by 150 grams of each of the following compounds: a. calcium phosphate ca3(po4)2 b. alum al2(so4)3 c. lime caco3 d. soda ash na2co3 e. nitric acid hno3
To determine the number of moles represented by 150 grams of each of the following compounds, we need to use the formula of the compound and the molar mass.
a. Calcium Phosphate (Ca3(PO4)2): 150g / (310.17 g/mol) = 0.48 moles
b. Alum (Al2(SO4)3): 150g / (342.15 g/mol) = 0.437 moles
c. Lime (CaCO3): 150g / (100.09 g/mol) = 1.498 moles
d. Soda Ash (Na2CO3): 150g / (106.00 g/mol) = 1.416 moles
e. Nitric Acid (HNO3): 150g / (63.01 g/mol) = 2.380 moles
It's important to note that these calculations are based on the assumption that the compounds are in pure form. In real-world applications, impurities or water content can affect the mass and molarity.
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2. Pilihan ganda30 detik1 ptQ. A student calculated the number of moles of carbon dioxide present in a 100.0 gram sample of a gaseous mixture. If the student determined that there's 0.30 moles of carbon dioxide present in the sample, what is the percent composition of carbon dioxide in the sample?Pilihan jawaban13%0.30%0.13%30%
The correct answer is 0.30%. To calculate the percent composition, divide the number of moles of carbon dioxide by the total number of moles in the sample, then multiply by 100. In this case, 0.30 moles of CO2 / (0.30 moles + x moles) * 100 = 0.30%. So, the percent composition of carbon dioxide in the sample is 0.30%.
How is the number of moles of a substance determined in a gaseous mixture?The variety of moles of a substance in a gaseous aggregate can be decided by measuring its mass and the usage of the correct fuel regulation equation, PV = nRT, wherein P is the stress, V is the volume, n is the wide variety of moles, R is the gasoline consistent, and T is the temperature in Kelvin. If the pressure, quantity, and temperature of the gaseous mixture are recognized, then the number of moles may be calculated with the aid of rearranging the equation to n = PV/RT. To locate the range of moles of a specific substance inside the aggregate, its mass need to be transformed to moles using the molar mass of the substance. The molar mass is the mass in grams of one mole of a substance and is used to convert among mass and moles.
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When two solutions have the same concentration of solute what are they called?
When two solutions have the same concentration of solute what are they called isotonic solution.
An isotonic solution possesses the same osmolarity, meaning solute concentration, as another solution. Water would stream in equal parts out of one solution as well as into the other if all these two solutions were connected by a semipermeable membrane.
Hypotonic fluid has less fluid, carbohydrates, as well as salt than blood. Hypertonic fluid contains more fluid, carbohydrates, and salt even than blood. Isotonic fluid, carbohydrates, and salt concentrations are similar to those found in the blood.
If the concentrations of both the internal and external solutions were the same, the two solutions are classified as isotonic.
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why are hydrocarbons insoluble in water? group of answer choices the majority of their bonds are nonpolar covalent carbon-to-hydrogen linkages. the majority of their bonds are polar covalent carbon-to-hydrogen linkages. they exhibit considerable molecular complexity and diversity. they are hydrophilic. they are less dense than water.
Hydrocarbons are insoluble in water because the majority of their bonds are polar covalent carbon-to-hydrogen linkages hence option b is the right choice.
A hydrocarbon is an organic molecule in organic chemistry that is made completely of hydrogen and carbon. The majority of hydrocarbons are colorless and hydrophobic, and their scents are either insignificant or best characterized by those of gasoline and lighter fluid. They can be gases, liquids, low-melting solids, or polymers, and they can also exist in a wide variety of molecular configurations and phases.
Hydrocarbons are the naturally occurring petroleum, natural gas, and coal, as well as their hydrocarbon derivatives and refined forms, in the fossil fuel industry. The primary source of energy for the entire planet is the burning of hydrocarbons.
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Which of the following are the structural polysaccharides? (a) Glycogen (b) Starch (c) Chitin (d) Glucose
Answer: chitin
Explanation:
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Can anyone please help me with this question? Thanks :D
A chemist runs the following reaction in a closed vessel:
2C2H6 + 7O2 4CO2 + 6H2O
After it is complete, she collects 10.0 grams of CO2, 6.1 g of H2O, and 5.0 grams of O2. What was the limiting reactant?
The Combustion is the the limiting reactant.
What is combustion ?
The generation of heat and light in the form of flame together with a chemical reaction that often entails the presence of oxygen. When a substance interacts with oxygen, a chemical reaction known as combustion occurs that generates heat. Among them are ethane, wood, and propane. The word for these compounds is exhaust. The majority of the exhaust is produced by chemical processes involving fuel and oxygen.
What is reaction ?
In a chemical reaction, one or more chemicals change into one or more other substances. For instance, the reaction between iron and oxygen results in rust. Sodium acetate, carbon dioxide, and water are the end products of the reaction between vinegar and baking soda.
Therefore, the Combustion is the the limiting reactant.
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How many carbon atoms are in a mole of methane?
Methane has 6.02x10²³ carbon atoms per mole.
A mole is the volume of a substance that includes 6.022 x 10²³ of its constituent parts, such as particles, atoms, ions, molecules, etc.
A mole is a unit for counting molecules, ions, or atoms.
The following formula can be used to determine how many moles of a material are present in a specific pure sample:
n = N÷NA
Where,
The number of moles is n.
The sample's total number of elementary entities is N.
Avogadro's number is NA.
Avogadro's number, or 6.022 ×10²³ elementary entities of the given substance, is equivalent to one mole of a substance.
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the saturated shown above is left uncovered on a lab bench at a constant temperature. as the solution evaporates, samples of the solution are removed every three days and the in the samples is measured. it is observed that the in the solution did not change over time. which of the following best helps to explain the observation? (a) as the solution evaporates, and leave the beaker along with the water molecules. (b) as the solution evaporates, the dissolution of in the beaker decreases. (c) the evaporation of water is endothermic, so more dissolves exothermically in the solution, which increases the . (d) as water evaporates, more precipitates out of the solution in the beaker.
Answer: option D
Explanation:
Is carbon dioxide ionic or covalent?
Answer: Covalent bonds
Explanation:covalent bonds are bonds between nonmetals. C is a non metal as well as O.
What intermolecular forces can HCI interact with other like molecules through
Only dispersion and Dipole
Only dispersion
Dispersion, dipole, and hydrogen bonding
Answer:
Intramolecular forces are the forces that hold atoms together within a molecule.
Explanation:
Intermolecular forces are forces that exist between molecules.
What type of weathering occurs in cold climates?
Physical weathering occurs mostly in cold climates.
Weathering is a natural process due to which breakdown of rocks into soil and sediments takes place, caused by climate factors.
The types of weathering are: chemical, physical and biological weathering.
In cold climates, physical weathering occurs more often because of the expansion and contraction of different types of minerals within the rocks at different rates on repeated heating and cooling.
The extreme climate condition in mountains and deserts is responsible for the temperature change from low to high and vice versa, which causes breakdown of the structure of rocks. This phenomenon is known as physical weathering.
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