Answer:
It's Anglo Saxon.
Explanation:
From the Latin aurum, which stands for Aurora, the dawn goddess, comes the symbol Au. Early humans were aware of and highly valued gold. Gold is a beautiful and valuable metal that has been used for at least 5500 years. The original name for gold is Anglo-Saxon.
The element number 79 for gold is Au. Gold's Latin name, Aurum, or shining morning, and its earlier Greek origins predate the Anglo-Saxon term for it. It is one of the more abundant elements with a higher atomic number and exhibits very little reactivity towards the majority of atmospheric conditions, such as water and air.
Although gold is typically inert, it can react with a substance called aqua-regia. A substance called aqua regia is used to dissolve gold. Nitric and hydrochloric acids are combined to make them. The oxidizing agent will be nitric acid, which will result in the creation of gold ions.
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What causes the change within every twenty four hours from day to night on Earth?
A)
Earth's rotation on its axis
the tilt of Earth on its axis
Tarth's revolution around the sun
the distance from Larth to the Sun
Tamashenomena on the top of the sun that appear as dark spots compar
Please answer
Answer:
Earth's rotation.
Explanation:
Most of the options are obviously incorrect, with the exception of tilt. However, tilt is the cause of seasons, not days.
Answer: Earth's rotation on its axis
Explanation:
How many neutrons does protium have?
1. A teacher instructs her students to measure out 50.0 mL of hydrogen
peroxide for three trials of an experiment. A student measures out 37.2 mL,
38.7 mL, and 36.9 mL.
Use this information to answer the questions below (1a and 1b).
3 points
1a. Calculate the percent error for each measurement and include them
below. (For example: 1%, 2%, 3%) *
Answer:
by measuring the teacher gets to 1590
Explanation:
ndnmv drf
What is the main difference between gases and liquids
Answer:
1.Liquids have less force of attraction between molecules than solids and more than gases; gases have a very weak force of attraction between the molecules which is the least amongst the three states of matter. 2.Liquids have definite volume; gases do not have definite volume.
Explanation:
:) HOPE THIS HELPS
Answer:
particles
Explanation:
particles are buzzing around very quickly when in a gas, but when in a liquid they vibrate.
what are parts in the human stomach
Earth Layers: describe each layer of makeup, location, and physical properties.be sure to include which layers are compositional and watch are mechanical
Answer:
Ok so the earth layers are
Crust, the surface of the earth
Mantle, where the lava usually comes from or how volcanos form due to the tectonic plates moving
outer core
inner core is the hottest
if you are asking for the compositional and mechanical layers that would be
Crust, mantle, core, Lithosphere, Asthenoshpere, Mesosphere, out core, and inner core
Mechanical: Lithosphere, Asthenosphere, mesosphere, outer and inner core
Compostional: Crust, Mantle, and core
If a substance has a density GREATER
than the liquid it's in, then it will
Answer:
sink
Explanation:
a substance with a higher density than others will sink and vice versa
Which types of reactions would result in the production of gas?
PLEASE HELP NOW!! worth lots of points
Answer:
farts
Explanation:
Are hemoglobin formation and functioning brains and muscles benefits of Iron?
3. describe how unequal heating causes weather
Answer:
The uneven heating causes temperature differences, which in turn cause air currents (wind) to develop, which then move heat from where there is more heat (higher temperatures) to where there is less heat (lower temperatures).
Explanation:
the product of 173.06 times 0.21 should be reported as what using proper number of sig figs?
Answer:
36.3
Explanation:
The full answer would be 36.3426, but because of the 0.21, you round it down to 3 sig figs.
I NEED HELP!!! How is continental crust different from oceanic crust?
Oceanic crust is thinner and more likely to sink.
Oceanic crust is thicker and more dense.
Continental crust is more dense and lighter.
Continental crust is thicker and more likely to sink.
Answer:
A
Explanation:
Oceanic crust is thinner and more likely to sink
Answer:
The answer is A Oceanic crust is thinner and more likely to sink.
Explanation:
I hope this is right sorry if it's not.
In an ionic bond
a. electrons are shared equally
b. protons are transferred
c. electrons are shared unequally
d. electrons are transferred
Answer: a chemical bond; in which one atom donates an electron to another atom
Explanation:
A sample of gas has a volume of 10 ml at 2 atm. The pressure increases to 4 atm. What is the new volume?
Answer:
The answer is 5 mLExplanation:
In order to find the new volume we use the formula for Boyle's law which is
[tex]P_1V_1 = P_2V_2[/tex]
where
P1 is the initial pressure
P2 is the final pressure
V1 is the initial volume
V2 is the final volume
Since we are finding the new volume
[tex]V_2 = \frac{P_1V_1}{P_2} \\[/tex]
We have
[tex]V_2 = \frac{10 \times 2}{4} = \frac{20}{4} \\ [/tex]
We have the final answer as
5 mLHope this helps you
Which technology is shown in the photograph?
A. Negative controls
B. Biostimulation reaction
C. Gel electrophoresis
D. Polymerase chain reaction
Answer:
C
Explanation:
Apex
Which of the following has a higher electronegativity oxygen or selenium?
Answer:
Between oxygen and selenium, oxygen is more electronegative because of more ionisation energy and small size
Explanation:
Matter is anything that takes up space and can be described by physical and chemical properties. Which statement
BEST differentiates chemical properties from physical properties?
A)
Physical properties are properties that can be physically seen or touched,
while chemical properties can only be found when matter is mixed with
specific chemicals.
B)
Physical properties are measured when matter changes its physical state,
while chemical properties can only be measured if matter remains in one
state for an extended time.
C)
Physical properties are difficult to measure because they require special
tools to detect, and chemical properties are easy to measure and require
not special tools to detect.
D)
Physical properties can be measured/observed without changing matter
into something else, while chemical properties describe matter's ability to
react/combine with other matter.
Answer:
D)
Physical properties can be measured/observed without changing matter
into something else, while chemical properties describe matter's ability to
react/combine with other matter.
Explanation:
Physical Change
The changes that occur only due to change in shape or physical properties but their chemical or internal composition remain unchanged.
1 = These changes were reversible.
2= They have same chemical property.
3= These changes can be observed with naked eye.
Example :
Water converting to Ice
Water converting to gas
In this water molecule remain the same only they rearrange themselves that change its state of mater not composition
Chemical change:
The changes, that occur due to change in the composition of a substance and result in a different compound is known as chemical change.
1 = These changes are irreversible
2 = These changes occur due to chemical reactions
3 = These may not be observed with naked eye
Example:
Combustion of fuel or wood: that oil or wood convert into energy, CO₂ and ash in case of wood
Boiling of egg: that change the chemical composition of protein in the egg .
The reaction of Hydrogen and oxygen:
H₂ (g) + O₂ (g) → 2H₂O (l)
How many molecules are there of the following compound?
5NaNO3
Answer:
84.99467
Explanation:
This should be the answer.
Ciara’s bike has rusted, which means that the iron in the metal changed to rust.
What has occurred?
an energy formation
an exothermic reaction
a chemical reaction
a precipitate formation
Answer:
CChem Reaction
Explanation:
Cuz it big brain time
The iron in the metal changed to rust, which is a chemical reaction. Therefore, option (C) is correct.
What is the rusting of iron?The rusting of iron is an oxidation reaction in which the iron combines with oxygen in the air in the presence of water to produce Fe₂O₃.xH₂O, a hydrated iron (III) oxide.
This hydrated iron (Ill) oxide is rust and the color of rust is reddish-brown. This reddish-brown rust can be seen on iron nails, pipes, and railings. on. Rust is formed when the iron is exposed to oxygen in the presence of moisture and is not an instantaneous reaction. Rusting of iron takes place over a long period of time.
Fe (s) + O₂ (g) + xH₂O (l) → Fe₂O₃. xH₂O (s)
The oxidation state of iron increases which is followed by the loss of electrons as a result of the rusting reaction. Iron(III) oxide or ferric oxide has the iron atom has an oxidation state of +3.
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One fitness magazine suggested that the food that you eat is like a battery because it has energy. Do you think that
the banana that Mila ate had energy? Explain why you think this
Answer:
Explanation:
In this case, the fitness magazine compared the food we eat with a battery because the food provides energy for the human body to perform its daily activities.
The banana is an excellent source of energy, as it is a fruit with a high content of carbohydrates and fructose, it is an excellent food to be eaten before physical exercise, as it provides the muscles with enough energy to increase performance before and after exercise. , is a fruit rich in potassium, magnesium, phosphorus, and vitamins a and c, which gives greater strength and energy.
What is a stable electron configuration?
List and describe six forms of energy.
Answer:
Gravitational energy, electric energy, magnetic energy, nuclear energy, thermal energy, chemical energy.
Explanation:
gravitational energy - the energy resulting from the attraction of two masses to each other
electric energy - energy from a static or moving electrical charge.
magnetic energy - energy from the attraction of opposite magnetic fields, repulsion of like fields, or from an associated electric field
nuclear energy - energy from the strong force that bonds protons and neutrons in an atomic nucleus
thermal energy - also called heat, this is energy that can be measured as temperature. It reflects the kinetic energy of atoms and molecules
chemical energy - energy contained in chemical bonds between atoms and molecule
mechanical energy - the sum of the kinetic and potential energy
radiant energy - energy from electromagnetic radiation, including visible light and x-rays (for example)
A woman is found dead on a boat floating in the middle of a lake at 4:30am. There is blunt force trauma to her head but no other discernable damage. She is approximately 30 pounds overweight. She is wearing thermal clothing and a winter jacket, gloves, and hat. Climatological data indicate it was a clear, cold, and windy night with no precipitation. Calculate the time of death based only on a body temperature of 15.6°C (60.8°F)? Now consider the other factors presented. How would each affect this estimation?
Answer:
Dead bodies lose one degree Celsius per hour, which we could deduce that the person died 12 hours ago.
Explanation:
On the other hand, it is very important to take into account that this number of hours is very approximate, since not only does it vary greatly with the environment and the acclimatization of the environment in which the person dies, but also in this specific case, insulating clothing was presented , which made the loss of body heat much more difficult and could easily be more than 12 hours.
The minimum for this particular situation is 12 hours to 24 hours possible postmortem.
Use the following chemical equation to answer the question:
2 N2 + 3 H2 ⟶ 2 NH3
How many atoms of N (nitrogen) are present in the products?
1. 2
2. 3
3. 6
4. 9
2 atome nitrogen , 1 is correct
The chemical formula for glucose, a type of sugar, is C 6H 12O 6. Which statement is true about glucose?
Answer:
The answer is C, Glucose is a compound, because it is made of more than one element.
Explanation:
Complete Question is ;
The chemical formula for glucose, a type of sugar, is C₆H₁₂0₆. Which statement is true about glucose?
1) Glucose is a compound because it's made from more than 1 element
2) Glucose is an element because it's made up from more than one kind of atom.
3) Glucose is an element because it can be separated.
4) glucose is a compound because is made of protons, neutrons and electrons
Solution ;
The statement which is true about glucose is (1) Glucose is a compound because it's made from more than 1 element. Hence the correct option is (1)
What is an Element ?Aan element made entirely of one species of atoms, or an atom which has a specific number of protons in its nucleus.
Chemical elements, in contrast to chemical compounds, cannot be reduced by any chemical process into simpler molecules.
Three substances make up glucose: carbon, hydrogen, and oxygen. They are set at a fixed ratio of 1:2:1.
Covalent bonds, in which two atoms share bonding valence electrons in one or more bonds, are used to bind these atoms together.
Therefore, The statement which is true about glucose is (1) Glucose is a compound because it's made from more than 1 element. Hence the correct option is (1)
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How many atoms of aluminum are in a molecule of magnesium aluminum oxide (Al2MgO4)?
Answer:
12
Explanation:
PLZ HELP ME!!!!!!!!!!!!!!!
Answer:Graduated Cylinder
Explanation:
You use the water displacement test to find the volume of irregular shaped objects.
Answer:
Graduated Cylinder
Which element am I? Give my symbol ONLY! What a robber says as he's running away!
Answer:
ummmmmmmmmmmmmmmm..mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
Explanation:
ummmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm.................... candyunicorns1999 has left the chat
Answer:
Bi
Explanation:
1Which statement about plant cells is true? A A plant cell cannot contain both a nucleus and chlorophyll. Incorrect answer B A plant cell can contain both chlorophyll and a nucleus. Incorrect answer C A plant cell must contain chlorophyll, but can have no nucleus. Incorrect answer D A plant cell has neither a nucleus nor chlorophyll.
Answer:
B A plant cell can contain both chlorophyll and a nucleus.
Explanation:
All plants are eukaryotic organisms i.e the cells of all plants possess a membrane-bound nucleus that houses their genetic material (DNA). In addition to this, most plant cells also contain a unique organelle called CHLOROPLAST, which they use to capture the energy from sunlight in order to perform a process called PHOTOSYNTHESIS.
According to this question, plant cells can contain both chlorophyll and a nucleus. They can possess chlorophyll because chlorophyll is a pigment in their chloroplast that captures the light energy.
In Bohr’s model of the atom, where are the electrons and protons located?