3 years ago

Why should you never mix unknown chemicals?

Chemistry

1 answer:

Zolol [24]3 years ago

5 0

Because it could blow up you or your house or melt everything.

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Which of the following statements is true of an aqueous solution of sodium chloride?

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3 years ago

ObIel WiLll unt COl.. USSMS A certain chemical reaction releases 31.2 kJ/g of heat for each gram of reactant consumed. How can y

aleksandr82 [10.1K]

Answer:

The expression to calculate the mass of the reactant is $m = \frac{1.080kJ}{31.2kJ/g}$

Explanation:

<em>The amount of heat released is equal to the amount of heat released per gram of reactant times the mass of the reactant.</em> To keep to coherence between units we need to transform 1,080 J to kJ. We do so with proportions:

$1,080J.\frac{1kJ}{10^{3}J } =1.080kJ$

Then,

$1.080kJ=31.2\frac{kJ}{g} .m\\m = \frac{1.080kJ}{31.2kJ/g}$

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3 years ago

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Kelvin (K) is the only scale that has a numeral value assigned to absolute zero.

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2 years ago

Which scientist established the law of octaves?

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