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Romashka [77]
3 years ago
5

By pushing backwards a roller skater moves forward. This is an example of Newton's

Chemistry
1 answer:
joja [24]3 years ago
7 0

Answer:

newtons law of roller skated duh

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What is the mass of a magnesium block that measures 2.00 cm
skad [1K]

Answer:

m = 31.284 grams

Explanation:

Given that,

The dimension of a magnesium block is 2.00 cm  x 3.00 cm x 3.00 cm.

The density of magnesium is, d = 1.738 g/cm³

We need to find the mass of the magnesium block. We know that the density of an object is given by its mass per unit its volume. So,

d=\dfrac{m}{V}\\\\\text{Where m=mass}\\\\m=d\times V\\\\m=1.738\ g/cm^3\times (2\times 3\times 3)\ cm^3\\\\m=31.284\ \text{grams}

So, the mass of the block is 31.284 grams.

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3 years ago
Measure of the average kinetic energy of molecules in an in an object
algol13
Yes because molecules is solid
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3 years ago
The results of a classroom group activity performed to test the acidic or basic nature of two substances are shown in the table.
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Substance a is a base, and substance b is an acid
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3 years ago
Match these items.
notka56 [123]
Litmus is an indicator
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Bases contain OH - ions
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Now, I have to take issue with the last one
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But technically, for the purpose of your answer strong base = pH 14
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The orbital radii of four planets in our solar system is shown in the following table. Orbital Radii Planet Orbital Radii (AU) W
nalin [4]

Answer:

w and x

Explanation:

6 0
3 years ago
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