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2 years ago

List the names of the elements that make up the molecule?

Chemistry

2 answers:

garik1379 [7]2 years ago

6 0

Answer:i nitrogen, oxygen, hydrogen

Explanation: " Molecules of most elements are made up of only one of atom of that element" well if you search it up

netineya [11]2 years ago

4 0

Answer:

You didn't really mention which molecule.But all molecules are made of atoms. They can be monatomic, diatomic, triatomic ,tetra-atomic or polyatomic. I hope this helps you :)

Explanation:

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Temperature is used to measure the movement of particles such as atoms and molecules. As temperature increases, what is true of

ch4aika [34]

This is thermodynamics. When you increase the temperature of an object, the particles gain on kinethic energy ergo the move faster. When you decrease it, they slow down.

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2 years ago

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0.0145 moles of helium gas are introduced into a balloon so that the volume of the balloon is 2.54 liters. An additional amount

olga_2 [115]

Answer:

4.43L is final volume of the ballon

Explanation:

Avogadro's law of ideal gases states that <em>equal volumes of gases, at the same temperature and pressure, have the same number of molecules</em>.

The formula is:

$\frac{V_1}{n_1} =\frac{V_2}{n_2}$

Where V and n are volume and moles of the gas in initial and final conditions.

If the initial conditions are 0.0145 moles and 2.54L and final amount of moles is 0.0253moles, final volume is:

$\frac{2.54L}{0.0145mol} =\frac{V_2}{0.0253mol}$

V₂ = <em>4.43L is final volume of the ballon</em>

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2 years ago

HELP O DONT UNDERSTAND THIS!IM SOOO STRESSED HOW DO I SOLVE IT

katrin [286]

Answer:

.86

.48

Explanation:

19/25 x 4/4 = 86/100

86/100 = .86

12/25 x 4/4 = 48/100

48/100 = .48

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2 years ago

The variables _______ and ________ affect the gravitational force between objects.

anastassius [24]

I think the answer is A

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3 years ago

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How efficient are electric engines

raketka [301]

Answer:

Electric engines have efficiencies of roughly 90% whilst combustion engines about 10% to 30%. This is because combustion engines emit much more heat, which is always energy that is not used as work, and thus increases inefficiency.

Explanation:

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3 years ago