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Taya2010 [7]
3 years ago
7

How can water be used as a renewable energy resource? checkpoint question?

Chemistry
1 answer:
topjm [15]3 years ago
7 0
1) Water current can be used to produce energy.
2) Salt water can we used to produce energy.
etc...
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Calculate the amount of C in 0.600g of CO2.
pashok25 [27]

Answer: Since one molecule of CO2 contains one molecule carbon atoms, therefore, 0.6 molecule of carbon dioxide will contain 0.6 molecule of carbon.

Mass of C in 0.6 molecule of CO2

Explanation

= No. Of molecule × molar mass

= 0.6× 12gm

=7.2gm

8 0
3 years ago
True or false: the smaller the difference between the average experimental value and the correct (true) value the greater the ac
mel-nik [20]

Answer:

True

Explanation:

The accuracy level is usually determined by the difference between the experimental and correct value. It is important to note that the smaller the difference between the average experimental value and the correct (true) value, the more accurate it is.

When the difference is large then it means the accuracy level is low and not up to the required standard.

5 0
3 years ago
A plastic cup is filled with 15.5 grams of water. The cup is sealed and placed in the freezer. The water freezes and turns to ic
HACTEHA [7]
It should be the same

7 0
3 years ago
HELP ASAP!! how can nuclear energy be classified as an inexhaustible energy resource??
seropon [69]

Answer:

No, and yes. As there is a finite amount of matter in the

universe, only so much can be converted to make energy. There will

be a limit, though it is a long, long way from where we are

Explanation:

6 0
3 years ago
What if you broke off a piece of cement (or bread) so that it was only half the volume of the original piece? What would happen
MAVERICK [17]

Answer:

The mass is also half of the mass of the original piece

Explanation:

Recall that the volume of a substance is defined as mass/volume. The density of substances is a constant. Hence, if a break off a piece of cement or bread such that what remains is only half the volume of the original piece, the mass of the new piece must also reduce to half of the mass of the original piece so that the volume of the material will remain constant.

Hence the answer above.

4 0
3 years ago
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