3 years ago

Why do scientists use chemical equations

Chemistry

1 answer:

Ivanshal [37]3 years ago

7 0

Answer:

They basically use them to summarize what happens in chemical reactions

Explanation:

hope this helps :)

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When atoms combine, the force of attraction that holds them together is a(

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Electrostatic, meaning the attraction from one's positive nucleus is to the negative electrons of the other atom and vis versa.

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4 years ago

He substance, cocl2, is useful as a humidity indicator because it changes from pale blue to pink as it gains water from moist ai

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3 years ago

When 100. mL of 6.00 M HCl is diluted to 300. mL, the final concentration is ________.

Marat540 [252]

Answer:

2.00 M

Explanation:

The concentration of a solution is given by

$M=\frac{m}{V}$

where

m is the mass of solute

V is the volume of the solution

At the beginning, the solution has:

M = 6.00 M is the concentration

V = 100 mL = 0.1 L is the volume

So the mass of solute (HCl) is

$m=MV=(6.00)(0.1)=0.6g$

Then, the HCL is diluted into a solution with volume of

V = 300 mL = 0.3 L

Therefore, the final concentration is:

$M=\frac{m}{V}=\frac{0.6}{0.3}=2.00 M$

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4 years ago

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___MgCl2(s) +___ MiCO3(s)

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Answer:

MgCl2 (s) + Li2CO3 (s) ==> MgCO3 (s) + 2LiCl (aq)

Double Replacement

Explanation:

MgCl2 (s) + Li2CO3 (s) ==> MgCO3 (s) + 2LiCl (aq)

Double Replacement

Halogens are Soluble

Carbonates are Insoluble

This reaction DOES take place.

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Explanation:

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3 years ago

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