2 years ago

Water + Heat What is proof of a Chemical Reaction?

Chemistry

1 answer:

Fynjy0 [20]2 years ago

3 0

Its water vapor bro coz the water will turn into vapor

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How many moles are in 50 g of CO2

murzikaleks [220]

Answer:

1.1 mol

Explanation:

n=m/M, where n is moles, m is mass, and M is molar mass.

M of CO2 = 12.01+16.00+16.00 = 44.01g/mol

n=50g/44.01g/mol

n = 1.13610543 mol

n ≈ 1.1 mol

Hope that helps

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2 years ago

8.310x10^2 – 7.210x10^1<br><br>[?]x10^[?]

alisha [4.7K]

Answer:

$7.589\times 10^{2}$

Explanation:

The expression can be solved mathematically as follows:

1) $8.310\times 10^{2}-7.210\times 10^{1}$ Given

2) $8.310\times 10^{1+1} - 7.210\times 10^{1}$ Definition of sum

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4) $(8.310\times 10^{1}-7.210)\times 10^{1}$ Distributive property

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6) $75.89\times 10^{1}$ Subtraction.

7) $(7.589\times 10^{1})\times 10^{1}$ Multiplication/Associative property

8) $7.589\times (10^{1}\times 10^{1})$ Associative property

9) $7.589\times 10^{2}$ $a^{m+n} = a^{m}\cdot a^{n}$ /Result

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2 years ago

What is the pOH of a 0.0072 M solution of sodium hydroxide? pOH=?

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I think the second space is chemical bonds

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3 years ago

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