3 years ago

What is inertia?

Chemistry

2 answers:

wariber [46]3 years ago

5 0

Answer is A hope that helps

Savatey [412]3 years ago

4 0

Answer:

Explanation:

The answer would be A because Inertia is when a property of matter remains unchanged.

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What’s the answer to this

Svetllana [295]

Answer:

B and D as well

Explanation:

All the electronic configuration of the elements of B end on s sub shell.

S energy level sub shell can hold 2 electrons and since Be, Mg, Ca Sr end in s.

We can say, they have same valence electrons, i.e 2 electrons.

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2 years ago

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Calculate the number of oxygen atoms and its mass in 50g of CaCo3<br>

xz_007 [3.2K]

The number of oxygen atoms = 3

Mass = 24 g

<h3>Further explanation</h3>

The formula of a compound shows the composition of the constituent elements

CaCO₃ is composed of 3 types of elements, namely Ca, C and O

The amounts of each of these elements in the compound CaCO₃:

Ca = 1
C = 1
O = 3

So the number of oxygen atoms = 3

mass of Oxygen :

$\tt mass~O=\dfrac{3\times Ar~O}{MW~CaCO_3}\times mass~CaCO_3\\\\mass~O=\dfrac{3\times 16}{100}\times 50=24~g$

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3 years ago

Methane is the chief constituent of petroleum fuel <br> A:yes <br> B:no

Ad libitum [116K]

Yes

Methane also is the chief constituent of natural gas, which contains from 50 to 90 percent methane (depending on the source), and occurs as a component of firedamp (flammable gas) along coal seams.

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3 years ago

In the ground state, an atom of which element has two valence electrons?

Akimi4 [234]

I would say Ni so yeah thats ur answer

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3 years ago

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What is 5 divided by 2.7

Strike441 [17]

5 divided by 2.7 is 0.54

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3 years ago