3 years ago

All fossils were formed from .

Chemistry

1 answer:

Kryger [21]3 years ago

5 0

Answer: B) Bones

Explanation:

Natural casts form when flowing water removes all of the original bone or tissue, leaving just an impression in sediment.

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Answer:

continental slope

Explanation:

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3 years ago

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) How many moles are there in 2.00 x 10^19 molecules of calcium phosphate?

Tamiku [17]

Answer:

$\huge 3.322 \times {10}^{ - 5} \: \: moles \\$

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

$n = \frac{N}{L} \\$

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L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

$n = \frac{2.00 \times {10}^{19} }{6.02 \times {10}^{23} } \\ \\ = 3.322 \times {10}^{ - 5} \: \: moles$

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3 years ago

In which location of the digestive system will you find both physical AND chemical digestion?

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The stomach

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In the stomach, physical digestion occurs because of peristaltic contractions (wave like contraction in the lean muscle) and chemical digestion occurs because of stomach acid, hydrochloric acid, breaking down your food.

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2 years ago

In the diagram below, particles of the substance are moving from the liquid phase to the gas phase at the same ra

Leni [432]

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The gas and liquid are at equilibrium

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An inference _______.

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Answer:

Explanation:

Am Inference is an educated guess, or a guess using prior knowledge

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