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skad [1K]
3 years ago
11

In a short paragraph, explain one thing you've learned from the course this year.

Chemistry
1 answer:
exis [7]3 years ago
7 0

Answer:

ive learned about the chart , ive learned about the coolest chemicle reactions and how. the can change colors , ive also learned that chenistrey is all around us since the beginning of life ,and how liquid can turn solid

Explanation:

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Norma-Jean [14]

Refer to the attachment.

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3 years ago
Use the drop-down menus to complete each statement.
slavikrds [6]
Question 1: A material that causes a wave to bounce off it is called the. Answer : Reflection

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8 0
2 years ago
"An increase in the price of gasoline will increase the demand for hybrid vehicles." This statement is an example of a positive
-Dominant- [34]

Answer:

True

Explanation:

This is because the statement above fits the definition of a positive economic statement. A Positive economic statement refers to objective statements that can be verified, tested , amended or discarded by consulting available evidence .The statement above can be tested objectively to establish its veracity.

3 0
3 years ago
What is the difference between fahrenheit and celsius temperature scales?
leva [86]
The differences are the freezing and boiling points being exactly 180 degrees
7 0
3 years ago
The cylinder of aluminum in class was approximately 13mm in circumference and 42mm in length. What would be it's approximate mas
Roman55 [17]

Answer:

Mass, m = 1.51 grams

Explanation:

It is given that,

The circumference of Aluminium cylinder, C = 13 mm = 1.3 cm

Length of the cylinder, h = 4.2 cm

We know that the density of the Aluminium is 2.7 g/cm³

Circumference, C = 2πr

r=\dfrac{C}{2\pi}\\\\r=\dfrac{1.3}{2\pi}\\\\r=0.206\ cm

Density is equal to mass per unit volume.

d=\dfrac{m}{V}

m is mass of the cylinder

V is the volume of the cylinder

V=\pi r^2h\\\\V=\dfrac{22}{7}\times0.206^2\times 4.2\\\\V=0.5601\ cm^3

So,

m=d\times V\\\\m=2.7\times 0.5601\\\\m=1.51\ g

So, the mass of the cylinder is 1.51 grams.

5 0
3 years ago
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