3 years ago

Which of the following causes a substance to change its state of matter from a solid to a liquid?

2 answers:

8 0

Answer:

b. a chemical reaction, in order for a substance to change its medium of state of matter it needs to go through a change in chemical balance or a chemical reaction

Explanation:

legit just learned this too

Sati [7]3 years ago

6 0

Answer:

C) Increases the pressure

Explanation:

Increasing the pressure might result in the change of temperature of the substance, which would change its state of matter.

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Determine the total kilojoules in two tablespoons of crunchy peanut butter that contains 6 g of carbohydrate, 11 g of fat, and 9

lara31 [8.8K]

Answer:

665 kJ

Explanation:

We assume that carbohydrates and protein each have 4 kilocalories per gram, and that fat has 9 kilocalories per gram. Then the number of kilocalories in the peanut butter is ...

4(6 +9) +9(11) = 159 . . . . kilocalories

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(159 kCal)(4.184 kJ/kCal) = 665.256 kJ

2 Tbsp of crunchy peanut butter contains about 665 kJ of energy.

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3 years ago