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sineoko [7]
3 years ago
8

which of the following energy transformation occurs when a skier glides down a hill. A. potential energy is transformed into kin

etic energy and heat energy. B. kinetic energy into potential energy and chemical energy C. gravitational energy is transformed into potential energy and heat energy
Chemistry
1 answer:
GarryVolchara [31]3 years ago
4 0
The answer is C. hope this helps ;)
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The table below shows the number of sub-atomic particles in an atom of magnesium.
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Answer:

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Aluminum metal reacts with dilute sulfuric acid to produce aluminum sulfate and hydrogen gas. what mass of aluminum will react w
SOVA2 [1]
Aluminium reacts with dilute sulfuric acid based on the following reaction:
<span>2Al + 3H2SO4 ..............> Al2 (SO4)3 + 3H2

From the periodic table:
mass of aluminium = 27 grams
mass of hydrogen = 1 gram
mass of oxygen = 16 grams
mass of sulfur = 32 grams

Therefore:
molar mass of aluminium = 27 grams
molar mass of sulfuric acid = 2(1) + 32 + 4(16) = 98 grams

From the balanced chemical equation:
2 moles of aluminium react with 3 moles of dilute sulfuric acid.
This means that 34 grams of Al react with 294 grams of the acid

To get the amount  of aluminium that reacts with </span><span>5.890 g of sulfuric acid, we will do cross multiplication as follows:
</span>amount of Al = (<span>5.890 x 34) / 294 = 0.6811 grams</span>
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Is fluber liquid or solid
Gennadij [26K]
Nor liquid or solid since flubber is like oobleck, it is a non newtonian object.
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They are balanced steadily which means they’re at the same point
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