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STALIN [3.7K]
3 years ago
15

Which term refers to a substance that changes color when there is a certain concentration of hydrogen ions in a solution? (1 poi

nt)
O indicator
O titrant
O burette
O analyte
Chemistry
1 answer:
ki77a [65]3 years ago
5 0
Indicator is the answer
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What is the molar mass of magnesium carbonate, MgCO3? 52.314 g/mol 84.313 g/mol 96.771 g/mol 102.588 g/mol
Orlov [11]

Answer:

Molar mass of MgCO3 = 84.3 g/mol

Explanation:

What is the molar mass of magnesium carbonate.

Molar mass of a substance is defined as the mass of one mole of the substance expressed in grams hence its unit is gram per mole (g/mol)

MgCO3 is a compound and it's molar mass would be the sum of the molar masses of the elements that make up the compound. MgCO3 contains 1 atom of magnesium, one atom of carbon and 3 atoms of oxygen

Molar mass of Magnesium = 24.3g

Molar mass of Carbon =12g

Molar mass of Oxygen = 16g

Molar mass of MgCO3 will be

24.3 + 12 + 16×3

= 24.3 + 12 +48 = 84.3 g/mol

Molar mass of MgCO3 = 84.3 g/mol

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3 years ago
How far would Sara get if she ran for 87 minutes at a speed of .125 miles per minute?
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Answer:

10.875 miles

So 87 minutes

.125 miles per minute

So just multiply int his case

87*.125

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dsp73

Answer:

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Why did engineers need to design a sunshade for Mercury Messenger?
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The answer is so it didn't burn.
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65% our of 20 is 13

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