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3 years ago

Plssss help for a and b and if possible pls give an explanation but you don’t have to!

Chemistry

1 answer:

Pepsi [2]3 years ago

7 0

Answer:

0 net force it is balanced

Explanation:

If the amount of force is the same on both sides the net force equals 0

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Which atomic model states that it is impossible to know the exact location of electrons around the nucleus?

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What is the ratio between the coefficients of any two substances in a balanced equation?

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3 years ago

what kind of change occurs when sodium and chlorine combine ? Describe the matter before and after the change

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Chemical change happen cuz these 2 elements will combine to form a new compound which’s NaCl ( table salt )

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3 years ago

How many grams of nan3 are required to produce 19.0 ft3 of nitrogen gas, about the size of an automotive air bag, if the gas has

Papessa [141]

The balanced chemical reaction is given as:

$2NaN_{3}(s)\rightarrow 2Na(s)+3N_{2}(g)$

Now, convert $19.0 ft^{3}$ into litres.

$1 ft^{3} = 28.3168$

So, $19.0 ft^{3} = 19\times 28.3168 = 538.0192 L$

Density is equal to the ratio of mass to the volume.

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

where, M = mass and V= volume $(538.0192 L)$

Substitute the value of density and volume in formula to get the value of mass.

$1.25 g/L=\frac{M}{538.0192 L}$

$1.25 g/L\times 538.0192 L= M$

$Mass = 672.524 g$

Now, number of moles of $N_{2}$ gas= $\frac{672.524 g}{28.02 g/mol}$

= $24.00 moles$

According to the reaction, 2 moles of sodium azide gives 3 moles of nitrogen gas.

Now, in 24.00 moles of nitrogen gas produced from= $\frac{2 moles of sodium azide}{3 moles of nitrogen gas}\times 24.00 moles$ of nitrogen gas, moles of sodium azide.