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strojnjashka [21]
3 years ago
15

What is 108 g +10+5+3

Chemistry
1 answer:
natali 33 [55]3 years ago
7 0

ANSWER : 108 + 10 = 118

118 + ( 5 + 3 )

118 + 8 = <u>1</u><u>2</u><u>6</u>

<u>=</u><u> </u><u>1</u><u>2</u><u>6</u><u> </u><u>g</u>

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Pie

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6 0
2 years ago
How many grams of water are produced when oxygen reacts with an excessive amount of propane (C3H8)?
lora16 [44]

Answer:

From the equation you will see that 1 mol of propane generates 4 mols of water.

Since the molar mass of water  

M ( H2O)=2×1+16=18g/mol

2 mol propane will generate  

2 ×4×18=144g   of water

Explanation:

Since the molar mass of water  

M ( H2O)=2×1+16=18g/mol

2 mol propane will generate  

2 ×4×18=144g   of water

5 0
2 years ago
The number of protons in an atom is known as its .......... ...........?​
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Answer:

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7 0
2 years ago
22. Radon has a half-life of 3.83 days. How long will it take a 225 g sample to decay to 14.06 g? (3pts.)
prohojiy [21]

Answer:

15.32 days

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Half-life (t½) = 3.83 days

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Next, we shall determine the number of half-lives that has elapsed. This can be obtained as follow:

Original amount (N₀) = 225 g

Amount remaining (N) = 14.06 g

Number of half-lives (n) =?

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Cross multiply

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2ⁿ = 225 / 14.06

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Thus, 4 half-lives has elapsed.

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Half-life (t½) = 3.83 days

Number of half-lives (n) = 4

Time (t) =.?

n = t / t½

4 = t / 3.83

Cross multiply

t = 4 × 3.83

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8 0
2 years ago
What is the rate of change in an objects position?
mr Goodwill [35]

Answer:.............................c

Explanation:

6 0
3 years ago
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