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ryzh [129]
2 years ago
5

2. Which number is not a coefficient in the equation,

Chemistry
2 answers:
prohojiy [21]2 years ago
8 0
...........I guess D. 19
liubo4ka [24]2 years ago
8 0

Answer: A. 6

Explanation: It is not present in the balanced chemical equation. Therefore it is not part of the coefficient in the reaction of the substances.

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Use the solubility rules from the Lab 4 introduction and your knowledge of qualitative separation schemes from the lab to answer
cluponka [151]

Answer:

a13+a13

Explanation:

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2 years ago
Conservation of mass was discussed in the background. describe how conservation of mass (actual, not theoretical) could be check
rosijanka [135]

Conservation of mass can be checked in an experiment . There are three steps to do it in a best way:

1. Weigh all the equipment and materials required in the experiment before the experiment.

2. Avoid spillage and evaporation during the experiment.

3. Weigh all the equipment and materials after the experiment.

If the mass is conserved then weight from step 1 is equal to weight from step 3.

7 0
3 years ago
Which part of the food web is NOT a living thing?
stiks02 [169]

Answer:

the sun

Explanation:

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4 0
3 years ago
\"Moving down group 2A (Alkaline Earth Metals), which element has the largest first ionization energy?\" Is the answer to this:
lesya692 [45]

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6 0
3 years ago
A solution of copper sulfate (CuSO4) produced by bioleaching has a concentration of 0.319 g/dm3 Relative atomic masses (Ar): Cu
Tanya [424]

moles Cu produced : 0.002

<h3>Further explanation</h3>

Concentration of copper sulfate (CuSO₄) : 0.319 g/dm³

MW CuSO₄ :

\tt =63.5+32+4\times 16=159.5~g/mol

mol CuSO₄ /dm³ :

\tt \dfrac{0.319}{159.5}=0.002

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mol Cu : mol CuSO₄ = 1 : 1 , so mol Cu²⁺=0.002

6 0
2 years ago
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