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nignag [31]
3 years ago
11

7. Wind, moving water, falling rocks, and roller-skating children are all examples of -​

Chemistry
1 answer:
cluponka [151]3 years ago
5 0

Answer:

kinetic energy

the is because all of them are moving at once

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What happens to the rock along the ridge when new molten material erupts?
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<span>The molten material then spreads out, pushing the older rock to both sides of the ridge. As the molten material cools, it forms a strip of solid rock in the center of the ridge. Then more molten material flows into the crack. The material splits apart the strip of solid rock that formed before, pushing it aside. Hope this helps! (:</span>
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3 years ago
What mass of water (in grams) is produced by the reaction of 23.0 g of SiO2?
nikitadnepr [17]

The mass of water produced by the reaction of the 23 g of SiO_2  is 13.8 g.

The given chemical reaction;

4Hf (g)  \ + \ SiO_2 (s) \ --> \ SiF_4(g) \ + \ 2H_2O(l)

In the given compound above, we can deduce the following;

  • molecular mass of SiO_2 = 28 + (2 x 16) = 60 g
  • molecular mass of 2H_2O = 2(18) = 36 g

60 g of SiO_2  --------- 36 g of water

23 g of SiO_2  ------------- ? of water

mass \ of \ water = \frac{23 \times 36}{60} = 13.8 \ g \ of \ water

Thus, the mass of water produced by the reaction of the 23 g of SiO_2  is 13.8 g.

  • <em>"Your question is not complete, it seems to be missing the following information";</em>

In the reaction of the given compound, 4Hf (g)  \ + \ SiO_2 (s) \ --> \ SiF_4(g) \ + \ 2H_2O(l), what mass of water (in grams) is produced by the reaction of 23.0 g of SiO2?

Learn more here:brainly.com/question/13644576

5 0
2 years ago
Write the empirical formula of at least four binary ionic compounds that could be formed from the following ions:
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MgO
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These are the possible compounds
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Explanation:

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Can someone help?
victus00 [196]
1. <span>The answer should be combustion

2. </span><span>Water is known to successfully dissolve both acids and bases, and water is considered a universal solvent.

3. The answer should be balanced.

Hope this helps :)
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4 years ago
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