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harina [27]
3 years ago
14

I need on that question at the bottom of the page?

Chemistry
1 answer:
anzhelika [568]3 years ago
3 0
The hills and valleys decrease the height and speed of the ride. This means that the graph has a negative correlation.

By the way, I think you may have plotted your points incorrectly. The directions said to connect them all with a smooth line or curve.

Also, this is not high school chemistry. This is more likely to be elementary school science. Just make sure that you put your questions in the correct categories next time! :)
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Is a formation of a limestone cave a physical change?
faust18 [17]
Yes formation of a limestone caver is a physical change because a carving does not change the substance (limestone) it is still a limestone.
7 0
3 years ago
Which mixture can be separated through filtration because one the substances is insoluble in water?
Oduvanchick [21]
<span>B)Na2SO4 and SrSO4 is the answer</span>
6 0
3 years ago
The density of human blood is 1.06g/ml the volume is 5.5l what is the mass in kg
kondor19780726 [428]

The mass of the blood is 5.8 kg.

<em>V</em> = 5.5 L = 5500 mL

Mass = 5500 mL × (1.06 g/1 mL) = 5800 g = 5.8 kg

6 0
3 years ago
when 1 mol of glucose is burned, 2802.5kj of energy is released. calculate rhe quantity of energy released to a person by eating
tester [92]

77.78 kJ of energy is released when 1 mol of glucose is burned, 2802.5 kJ of energy is released.

<h3>What are moles?</h3>

A mole is defined as 6.02214076 ×10^{23} of some chemical unit, be it atoms, molecules, ions, or others. The mole is a convenient unit to use because of the great number of atoms, molecules, or others in any substance.

Calculate the moles of 5.00g of glucose.

Given mass = 5.00g

The molar mass of glucose = 180.156 g/mol

Moles = \frac{mass}{molar \;mass}

Moles = \frac{5.00g}{180.156 g/mol}

Moles =0.02775372455

The quantity of energy released to a person by eating 5.00g of glucose in a candy.

0.02775372455 x 2802.5 kJ

77.77981305 kJ =77.78 kJ

Hence, 777.78 kJ of energy is released.

Learn more about moles here:

brainly.com/question/8455949

#SPJ1

8 0
2 years ago
Which best describes the products of a chemical reaction?
cricket20 [7]

Answer:

Q1 part D Q2 part B

Explanation:

After the chemical reaction, the things that you get are known as products.

3 0
2 years ago
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