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AlexFokin [52]
3 years ago
14

Which of the following is the first step in balancing a chemical equation?

Chemistry
1 answer:
WARRIOR [948]3 years ago
7 0
<span>The first step in balancing a chemical equation, would be to find the amount of each element. </span>
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Please help!!!
e-lub [12.9K]

1) Compounds:

a) Chemically combined.

b) Components change properties.

c) Fixed proportions.

2) Mixtures:

a) Physically combined.

b) Components retain properties.

c) Variable proportions.

3) Both:

a) Made of elements.

b) 2 or more components.

A compound is a pure substance because its molecule cannot be broken down into simpler particles by physical means. For example water (H₂O) is a chemical compound made of two elements (hydrogen and oxygen).

In chemical change new substances are formed, the atoms are rearranged and the reaction is followed by an energy change.  

There are no chemical bonds between substances in the mixture.,For example, mixture is solution of water and alcohol.

8 0
4 years ago
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The mass number of a fluorine (F) atom is 19 . How many neutrons does it have
kiruha [24]
I think it would have 10 neutrons. Hope this helps :)
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3 years ago
Heterogeneous mixture containing a liquid in which visible particles settle
suter [353]
A suspension is the answer
7 0
4 years ago
Lewis structure for nitrogen triiodide, NI(3)
Rasek [7]

Answer:

Lewis structure for nitrogen triiodide,NI_3 is given in the attachment.

Explanation:

Given:

The given compound is Nitrogen triiodide. In which 1 atom of Nitrogen combines with 3 atoms of Iodine. Both Nitrogen and Iodine are non-metals,So they form covalent bond by sharing of electrons.

The electron configuration of Nitrogen and Iodine is given below;

N(7) = 1s^2,2s^22p^3\\I(53) = 1s^2,2s^22p^6,3s^23p^63d^{10},4s^24p^64d^{10},5s^25p^5

There are 5 electrons in valance shell of Nitrogen atom and 7 electrons in valance shell of Iodine atom.

So, 3 atom of Iodine shares 1 electron with 1 electrons of Nitrogen.

The Lewis dot Structure is in the attachment.

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3 years ago
When baking soda and vinegar react to certain surfaces up bubbles what does this mostly indicate
bekas [8.4K]

Answer:

a chemical reaction

Explanation:

4 0
3 years ago
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