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sergejj [24]
3 years ago
9

Label each transition in this flow chart as a chemical change or a physical change

Chemistry
1 answer:
Elodia [21]3 years ago
4 0

1) Left up: a chemical change. We can see new substance (red-blue) is formed from one blue and one red atom.

In chemical change new substances are formed, the atoms are rearranged and the reaction is followed by an energy change.

2) Left down: a chemical change. We can see new substance (red-blue) is formed from two blue and one red atoms.

3) MIddle: a physical change. There is no new substance. Bonds are not broken.

4) Right up: a chemical change. Bonds are broken.

5) Right down: a physical change. Change of state of matter.

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If an object has a mass of 250 grams and a volume of 5 milliliters, what is the density of the object?
ycow [4]

Answer:

<h2>50 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume} \\

From the question we have

density =  \frac{250}{5}  \\

We have the final answer as

<h3>50 g/mL</h3>

Hope this helps you

4 0
2 years ago
If a fish gets squirted with ink it will swim slower
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Answer:cool

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5 0
3 years ago
Thank uuuu so much!!!!!
kow [346]

Answer:

A. 0.83

Explanation:

Hopefully this helps!

7 0
3 years ago
How do solve for density?
Pachacha [2.7K]
Density(D) is defined as Mass(M) divided by Volume(V).

The formula for Density is:

D = M / V.

Another way to remember the formula for Density is to remember "Mass per unit of volume".

I hope this helps!
7 0
2 years ago
Devices that mix air or oxygen with flammable gasses cannot be used unless approved by
Feliz [49]

Flammable gases are gases that have the tendency to <u>explode (burst into flames)</u> when they come in contact with the <u>appropriate quantities of air, oxygen, or any suitable oxidant.</u>

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Devices that mix air or oxygen with flammable gasses cannot be used unless approved by an <u>authorized or approved personnel.</u>

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  • Examples of flammable gases are hydrocarbons such as <u>Propane, Acetylene</u>, e.t.c.

  • Flammable gases are dangerous to humans and the environment and if they are not handled properly, can cause severe damages and even death.

  • During the preparation and usage of flammable gases, safety precautions should be properly enforced such as the <u>wearing of appropriate safety gear and goggles</u>.

  • Devices that mix air or oxygen with flammable gases cannot be used unless approved by an <u>authorized or approved personnel.</u>

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To learn more, visit the link below:

brainly.com/question/3702349

8 0
2 years ago
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