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Ugo [173]
3 years ago
8

Which of the following would not be considered matter? plants cheese light blood

Chemistry
1 answer:
belka [17]3 years ago
3 0

Answer:

Light

Explanation:

Plant is a thing so it has matter

Cheese is food so it has matter

Blood is a liquid so it has matter

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Answer:

D

Explanation:

The greater the distance apart, the lesser the gravitational force between the objects

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3 years ago
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Which of the following affects the speed of a seismic wave?
scoray [572]

Explanation:

The speed of seismic waves is affected by the density of the underlying rock.

Seismic waves are elastic waves that transmits elastic energy from one point to the other.

These waves generally produced during an earthquake.

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3 years ago
How many grams of water are produced from the decomposition of 63 grams of lithium hydroxide
Ymorist [56]

Answer:

18.65004 grams H2O

Explanation:

First, we need to write down the balanced chemical equation for the decomposition reaction:

2LiOH -> H2O + Li2O

Since we have grams of LiOH and we need to know the grams of water, we need to convert to moles since we can only compare moles to moles.

The amu of LiOH is 23.947.

The given grams of LiOH is 63.. To convert to moles, we will divide 63 by 23.947..

This gives us 2.6310 moles LiOH..

To convert to moles of H2O (and later grams of H2O), we will use the mole fractions from the balanced equation...

When we look at the balanced equation we can see that 2 moles of LIOH can produce 1 mol of Water, so:

2.6310 moles * \frac{1 molH_{2}O}{2 mol LiOH} = 1.3155 moles H2O

Now we will convert from moles to grams (we must multiply by the amu)

1.3155 moles H2O = 18.65 grams H2O

3 0
3 years ago
Water changes from a liquid to a gas in the process of evaporation. <br> true or false
Umnica [9.8K]
This it true because in the triangle of the transformation from solid, liquid, and gas
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4 0
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Which of the following best shows two element combining to form a compound
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Explanation:

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