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Lina20 [59]
3 years ago
6

What would be the most appropriate metric unit to describe the mass of a person? A)grams

Chemistry
2 answers:
ValentinkaMS [17]3 years ago
7 0
The most appropriate and most commonly used metric when describing a person's mass is D.) kilograms

I hope this helped!! :))

AveGali [126]3 years ago
7 0

Answer:

Kilograms

Explanation:

In most parts of our world, the International System of Units it is used to express characteristics of measurements in materials. In the case of mass, the Kilogram is unit of reference. Of course the are plenty of units that can be bigger than the base (like GK) or smaller than the base unit (like  mg).

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Why do thermistors increase in conductivity when heated? What happens in normal metals? Explain on the atomic level.
Marysya12 [62]

Metal conductivity generally goes down or resistivity goes up with temperature goes up.

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2 years ago
Gaseous butane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 4.1 g of butane is m
m_a_m_a [10]

Answer:

12.44 g

Explanation:

2C4H10 + 13O2 = 8CO2 + 10H2O

n(C4H10) = m(C4H10)/M(C4H10) = 4.1 / 58g/mol = 0.0707 mol (excess).

n(O2) = m(O2)/M(O2) = 25.9 / 32g/mol = 0.809 mol (deficiency).

Since the ratio of O2 to octane is 13 : 2 we can divide 0.0707 by 2 to get 0.03535 and divide 0.809 by 13 to get 0.062.

mass of CO2 produced =

M = [0.0707 moles C4H10 x 8 moles CO2] / 2 moles C4H10 x 44 g CO2/mol

M = 0.5656/2 * 44

M = 0.2828 * 44

M = 12.44 of CO2

5 0
3 years ago
what are we/what has someone did to prevent/lessen the negative side effects of aluminium extraction?
kogti [31]

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7 0
3 years ago
Show the difference between a saturated hydrocarbon and an unsaturated hydrocarbon.
harkovskaia [24]
Saturated hydrocarbons consists of C-C single bond whereas Unsaturated hydrocarbons consists C-C double/triple bond.
4 0
3 years ago
Why does perchloric acid cause macromolecules to precipitate?
asambeis [7]
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Perchloric acid donates protons to macromolecules and lower their solubility in water. Also perchloric acid is strong oxidizing agent and change oxidation number of elements.
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