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zhuklara [117]
3 years ago
15

Limestone is used to make cement and mortar. a. True b. False

Chemistry
1 answer:
marusya05 [52]3 years ago
8 0
The awnser is true maybe
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A persons weight changes as he travels from earth to space but his mass remains the same
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Which property of water makes it helpful to use in car radiators?
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The correct answer is<span> C) Water takes long to heat and cool down than other liquids.

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3. How many grams of water will be produced from 15.0 grams of Methane? *<br> CH4 +2 02 → CO2 + 2H2O
jok3333 [9.3K]
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2.1K viewsView 2 Upvoters

2



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Related Questions (More Answers Below)
8 0
2 years ago
If there are 40 mol of NBr3 and 48 mol of NaOH, what is the excess reactant?
Nata [24]

Answer:

The correct answer is option B.

Explanation:

3NaOH+2NBr_3\rightarrow 3HOBr+3NaBr+N_2

Moles of NBr_3 = 40 mol

Moles of NaOH = 48 mol

According to reaction, 3 moles of NaOH reacts with 2 moles NBr_3

Then ,48 moles of NaOH will reacts with:

\frac{2}{3}\times 48 mol=32 mol of NBr_3

Then ,40 moles of NaBr_3 will reacts with:

\frac{3}{2}\times 40 mol=60 mol of NaOH

As we can see that 48 moles of sodium will completey react with 32 moles of nitrogen tribromide.

Moles left after reaction = 40 mol - 32 mol = 8 mol

Hence, the NBr_3 is an excessive reagent.

6 0
3 years ago
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Nastasia [14]

Answer:

sorry

Explanation:

don know

8 0
3 years ago
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