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3 years ago

using the equation 2h2+o2-->2h2o, if 192g of oxygen are produced, how many grams of hydrogen must react with it

1 answer:

4 0

The balanced chemical reaction is:

2H2+O2-->2H2O

To determine the mass of hydrogen that is needed, we need use the initial amount of oxygen and relate it to hydrogen from the reaction given. We do as follows:

192 g O2 ( 1 mol O2 / 32 g O2) ( 2 mol H2 / 1 mol O2 ) ( 2.02 g H2 / 1 mol H2 ) = 24.24 g H2

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algol [13]

Answer:

The voltage or potential difference

Explanation:

What makes current flow in a circuit is the voltage or the potential difference.

This force is supplied by the battery or the mains electrical circuit.

Every circuit requires the voltage to drive current through
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3 years ago

Convert 67 inches into a feet

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Answer:

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3 years ago

Which statements correctly describe the decay rates of radioactive isotopes?

storchak [24]

Answer: b} The exact time when an individual atom will decay can be accurately predicted.

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Explanation:

All radioactive decay follows first order kinetics.

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$t=\frac{2.303}{k}\log\frac{a}{a-x}$

where,

k = rate constant

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a - x = amount left after decay process

Expression for calculating half life, which is the time taken by the half of the reactants to decompose is:

$t_{1/2}=\frac{0.693}{k}$

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3 years ago

Read 2 more answers

What is the mass of 4 × 1015 atoms of nickel (Ni)? Answer in units of g.

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Answer:

4060

Explanation:

hope this helps

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2 years ago

Read 2 more answers

If there are three methyl groups on the same carbon, what is the prefix used?

Tanzania [10]

Answer:

tri

Explanation:

1-nothing

2-di

3-tri

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3 years ago