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2 years ago

Hurry 20pts

Chemistry

1 answer:

PSYCHO15rus [73]2 years ago

3 0

Answer:

Schaus Swallowtail Butterfly

Explanation:

They eat food plants, torchwood and wild lime. And their an endangered species in Florida.

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Explain how the mucles and other organs are dependent on the brain

White raven [17]

Answer:

The brain's signals.

Explanation:

The brain sends signals to the muscles to contract and release. Without the brain the muscles would not be controlled and you would not be able to use them for anything that you want to.

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2 years ago

Process in which water vapor turns to liquid

jeka94

In the amtmosphere this water vapor cools and turns back to liquid for forming clouds
this process is called condensation. When it cant hold on much longer it will turn into rain or snow.

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3 years ago

Read 2 more answers

The solubility of in water at a certain temperature is 35.7 g /100. g . Suppose that you have 330.0 g of . What is the minimum v

juin [17]

The question is incomplete, here is the complete question:

The solubility of substance X in water at a certain temperature is 35.7 g /100. g. Suppose that you have 330.0 g of substance X. What is the minimum volume of water you would need to dissolve it all? (Assume that the density of water is 1.00 g/mL.)

Answer: The minimum volume of water that would be needed is 940.17 mL

Explanation:

We are given:

Solubility of substance X in water = 35.1 g/100 g

This means that 35.1 grams of substance X is dissolved in 100 grams of water

Applying unitary method:

If 35.1 grams of substance X is dissolved in 100 grams of water

So, 330.0 grams of substance X will be dissolved in = $\frac{100}{35.1}\times 330=940.17g$ of water

To calculate the volume of water, we use the equation:

$\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}$

Density of water = 1 g/mL

Mass of water = 940.17 g

Putting values in above equation, we get:

$1g/mL=\frac{940.17g}{\text{Volume of water}}\\\\\text{Volume of water}=\frac{940.17g}{1g/mL}=940.17mL$

Hence, the minimum volume of water that would be needed is 940.17 mL

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3 years ago

Explain how you determine molar mass of Ca(No3)2

igor_vitrenko [27]

Answer:

164

1st step we will write desperate molar mass of each element

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3 years ago

What is the density of an unknown object that has a volume of 4cm. and a mass of 10g.

Dmitry [639]

The density would be 2.5g/cm^3

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2 years ago