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klemol [59]
4 years ago
15

Stoichiometric coefficients indicate the ratio between ________of given substances in a chemical reaction

Chemistry
1 answer:
Cloud [144]4 years ago
7 0

Answer:

b

Explanation:

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Determine the oxidation number of sodium in Na202
Olegator [25]

Answer:

+1

Explanation:

Na₂O₂

NOTE: the oxidation number of oxygen is always –2 except in peroxides where it is –1.

Thus, we can obtain the oxidation number of sodium (Na) in Na₂O₂ as illustrated below:

Na₂O₂ = 0 (oxidation number of ground state compound is zero)

2Na + 2O = 0

O = –1

2Na + 2(–1) = 0

2Na – 2 = 0

Collect like terms

2Na = 0 + 2

2Na = 2

Divide both side by 2

Na = 2/2

Na = +1

Thus, the oxidation number of sodium (Na) in Na₂O₂ is +1

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3 years ago
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Keith_Richards [23]
Someone who wants to learn a skilled trade on the job should consider enrolling in a class for skills. In the present skill trade jobs are popular and many schools are offering the training of these skills like building, repairing and maintaining.
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3 years ago
To titrate 50.00 milliliters of an unknown HC2H3O2 sample, use 43.00 milliliters of a standard 0.1000 M NaOH titrant. What is th
rewona [7]
The molarity of the acid is 0.086 00 mol/L.

HC₂H₃O₂ + NaOH → NaC₂H₃O₂ + H₂O

Since 1 mol of acid reacts with 1 mol of base, we can use the formula

M₁V₁ = M₂V₂

M₁ = ?; V₁ = 50.00 mL
M₂ = 0.1000 mol/L; V₂ = 43.00 mL

M₁ = M₂ × \frac{ V_{2}}{ V_{1}} = 0.1000 mol/L × \frac{43.00 mL}{50.00 mL} = 0.086 00 mol/L
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The meerkat is able to get all of the water in needs through its food and therefore never needs to drink water. This animal is w
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i believe the answer is c grassland

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What was the rate of reaction in trial 1? choose the closest answer.
Volgvan
A was the rate of reaction in trial 1.
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