10. This is a neutral atom. What is this element

Answer:

25000 nanoseconds

Explanation:

Answer:

i think it's 25,000 nanoseconds :)

Explanation:

Answer:

5 Significant Figures

Explanation:

Atoms are the building block of science for starters meaning that all solid and liquid thing will contain atoms. Matter is anything that has mass and takes up space. So, in order to prove that air is matter, we need to prove that air has mass and takes up space. To prove that a bicycle has matter, you would  need to show that it has a weight and will take up space.

Thank you hope this helps you out!

Answer:

Explanation: one benefit of being organized is

More Focused

Productive

Sleeping Better

Saving Money

Healthier Physically

Social Life Improves

More Free Time

Gratitude

Less Stress

Happiness

Answer:

[tex]\frac{6}{3} Li^{-}[/tex]

Explanation:

The number of protons and neutrons together create total atomic mass.

The number of protons determine what element it is on the Periodic Table.

The number of electrons v protons determine the charge of the atom.

Protons are positive, electrons are negative, neutrons have no charge.

Since there is 1 more electron than protons, the overall charge is going to be -1.

We are given that there are 3 protons, so that gives us the Lithium element with a -1 charge.

Add up the 3 protons with the 3 neutrons and we get 6 as the total atomic mass in this atom.

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Answer: yo i’m down :)

Explanation:

Answer: 308.649 K

Explanation:

Temperature in Celsius would be converted to Kelvin (K), which is the widely accepted S.I units for measuring Temperature in Chemistry.

Kelvin (K) = 273 + Celcius

               =  273 + 35.649 C

               =  308.649 K

Answer:

physical is the change that doesn't effect the identity of the object chemical changes the identity of the object.

Answer:

three example of glocose, fructose, galactose.

your answer is 0.00833M the volume was converted into liters

NaOH(aq)+HCl(aq)→NaCl(aq)+H2O(l)

Using the molarity equation, we can find the number of moles of HCl that reacted:

molarity=mol soluteL soln

mol solute=(molarity)(L soln)

mol HCl=(0.105molL)(0.0250L)=0.00263 mol HCl

(volume converted to liters)

Now, using the coefficients of the chemical reaction, we can determine the number of moles of NaOH that reacted:

0.00263mol HCl(1lmol NaOH1mol HCl)=0.00263 mol NaOH

Lastly, we'll use the molarity equation (using given volume of NaOH soln) again to determine the molarity of the sodium hydroxide solution:

molarity=mol soluteL soln

Answer:

0.090 J/(mmol·°C) × (1000 mmol/mole × 1 kJ/(1000 J)) = 0.090 kJ/mole

Explanation:

The unit of conversion from kilo-Joules to Joules is given as follows;

1000 Joules = 1 kilo-Joule

The unit of conversion from milimoles to moles is given as follows;

1000 milimoles = 1 Mole

Therefore, we have

The value of the given expression is 0.090 J/(mmol·°C) × 1000 mmol/mole × 1 kJ/(1000 J) = 0.090 kJ/mole

0.090 J/milimole = 0.09 kJ/mole.

Answer: C

Explanation: A good hypothesis is an “If...then,” statement and you are looking for which tomato plant grows the best. Vitamin A is the independent variable and the height is the dependent variable.

Answer:

The volume of mercury is 0.368mL .

Explanation:

You have to apply Density formula, D = mass/volume. Then, substitute the following values into the formula :

[tex]density = \frac{mass}{volume} [/tex]

[tex]let \: density = 13.6 , mass = 5[/tex]

[tex]13.6 = \frac{5}{vol} [/tex]

[tex]13.6 \times vol = 5[/tex]

[tex]vol = 5 \div 13.6[/tex]

[tex]vol = 0.368ml \: (3sf)[/tex]

Volume of mercury metal of mass 5.00 g and density 13.6 g/ml will be

68 ml.

Density of metal can be calculated by mass per unit volume. Density of a substance is directly proportional to mass and inversely proportional with volume.

Density= mass/ volume.

Volume= density * Mass

           = 13.6g/ml * 5 g

          = 68 ml.

Density of substance is directly proportional with mass and and inversely proportional with volume. If mass of the substance increases density increases, if volume of the substance decreases then  density increase.

Therefore, Volume of mercury metal of mass 5.00 g and density 13.6 g/ml will be 68 ml.

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Answer:

Carbon is a highly covalent element due to the presence of four valence electrons in its outermost shell. This helps it bond covalently with other elements in various ways.

Carbon is known to be the backbone for most compounds. The carbon backbone vary in length and in the mode of bonding such as having the ability to from straight, branched, rings, double or triple bond which contibutes to the diversity and complexity of organic molecules.

Answer:

5.61983 × 10^5

Explanation:

Move the decimal forward 5 spaces, each time doing so you add 10^(# of spaces moved, in this case 5)

Answer:

4

Explanation:

Answer:

12.60 m has 4 significant figures.

Explanation:

On Edge 2021

Answer:

The substance is a liquid.

A substance is followed by the symbol (l) in a chemical equation. The symbol represent that the substance is in the liquid state. Therefore, the correct option is option B.

Chemical equations are symbols or chemical formulas that depict a chemical reaction symbolically. With a + sign separating the entities in the reactants and products, the reactant creatures are presented on the left and the end result entities are provided on the right.

Chemical formulas can be mixed, structural (represented by pictures), or both. The absolute values for the stoichiometric numbers are shown as coefficients next to the equations and symbols of the various entities. Jean Beguin drew the initial chemical equation in 1615. A substance is followed by the symbol (l) in a chemical equation. The symbol represent that the substance is in the liquid state.

Therefore, the correct option is option B.

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Answer:

It gains electrons, reducing its overall charge

Explanation:

When an element is reduced, It means It gains electrons, reducing its overall charge. Hence the correct option is (B)

Redox is a type of chemical reaction in which the oxidation states of substrate change.

Oxidation is the loss of electrons or an increase in the oxidation state (Charge) of a chemical or atoms within it.

Reduction is the gain of electrons or a decrease in the oxidation state (Charge) of a chemical or atoms within it.

Therefore, When an element is reduced, It means It gains electrons, reducing its overall charge. Hence the correct option is (B)

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Answer:

D . oxidation and reduction oxidation

The light reactions synthesize ATP, NADPH, and oxygen using oxidation and reduction. Therefore, option D is correct.

The term oxidation is defined as the loss of electron and tha term reduction is defined as the gain of electron. When oxidation and reduction takes place simultaneously is called as redox reaction.

In the light reactions, energy from sunlight drives the synthesis of ATP and NADPH, the formation of O2 from H2O.

During the light reactions, water is oxidized, electrons are shifted from water to NADP+, and ATP is compounded. The three components of the light reaction can be resumed with equations: Oxidation of water. 2 H2O 02 + 4e- + 4 H.

Thus,The light reactions synthesize ATP, NADPH, and oxygen using  oxidation and reduction, option D is correct.

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Answer:

4 significant figures.

Explanation:

All non-zero numbers are significant figures.

Answer:

Particles exchange energy through elastic collisions.  

All particles are in constant random motion.

Except during collisions, interactions between particles are negligible.

Temperature depends only on the average kinetic energy of the particles.

Explanation:

Answer:

A,B,D,E egd

Explanation:

Answer:

Anemometer. An anemometer is a type of weather instrument that measures wind speed.

Answer:

1.asphalat 2.DDT 3.cellulose 4.polystreyne 5.nylon

Answer: Petroleum

Explanation:

Gases, bc its expand the most upon heating because the intermolecular space is more than in solids or liquids.

intermolecular space = the space between each particles

Gases

the intermolecular space between gases is more than in solids and liquid

Answer:

(D) is the correct option.

Explanation:

Molar mass of NO = (14+16) g/mol = 30 g/mol

Molar mass of NO₂ = (14+16×2) g/mol = 46 g/mol

Molar mass of N₂O = (14×2+16) g/mol = 44 g/mol

Molar mass of N₂O₅ = (14×2+16×5) g/mol = 108 g/mol

Number of moles = mass/molar mass

mass = n × M, M = molar mass

n = 1 mol in each case

Higher the molar mass, greater is the mass of the compound. The molar mass of N₂O₅ is greatest of all other cases. It will have greatest mass.

Answer:

sound energy

Explanation:

Answer:

Chemical energy

Explanation:

Answer: Butane and benzene are both compounds. They contain multiple elements bonded together in a specific ratio. Kerosene and gasoline are mixtures because they are combinations of several compounds. Oxygen is an element because it is made up of only one type of atom.

Explanation: im doin edge 2020

Butane and benzene both are compounds. Gasoline and kerosene both are mixture and oxygen are an element.

A substance can not be broken into simple components by any chemical reaction is called elements.

A substance is from a combination of two or more different chemical elements is called compound.

Butane (C4H10) and benzene(C6H6) are both compounds. They contain multiple elements like carbon and hydrogen bonded together in a certain ratio.

Kerosene is a combination of hydrocarbons and basically it is made up of aromatic hydrocarbon and gasoline is a mixture of hydrocarbons, additives and blending agent so kerosene and gasoline both are mixtures.

Oxygen is an element because it is made up of only one type of atom.

Butane and benzene both are compounds. Gasoline and kerosene both are mixture and oxygen are an element.

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Answer:

Yes

Explanation: It is just caffeine and if it is just one it will not hurt