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Art [367]
3 years ago
14

Hurry 20pts

Chemistry
1 answer:
PSYCHO15rus [73]3 years ago
3 0

Answer:

Schaus Swallowtail Butterfly

Explanation:

They eat food plants, torchwood and wild lime. And their an endangered species in Florida.

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Arrange ZN HG CU AU metals in order of decreasing activity with the most active first
Andrej [43]
  • AU ZN CU HG

Explanation:

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6 0
3 years ago
How many grams of mercury can be produced if 18.0 g of mercury (11) oxide decomposes?
NARA [144]

Answer:

18.0 g of mercury (11) oxide decomposes to produce 9.0 grams of mercury

Explanation:

Mercury oxide has molar mass of 216.6 g/ mol. It gas a molecular formula of HgO.

The decomposition of mercury oxide is given by the chemical equation below:

2HgO ----> 2Hg + O₂

2 moles of HgO decomposes to produce 1 mole of Hg

2 moles of HgO has a mass of 433.2 g

433.2 g of HgO produces 216.6 g of Hg

18.0 of HgO will produce 18 × 216.6/433.2 g of Hg = 9.0 g of Hg

Therefore, 18.0 g of mercury (11) oxide decomposes to produce 9.0 grams of mercury

3 0
3 years ago
For about how long do scientists think wind and solar power can provide us with energy?
ivanzaharov [21]

Answer:

D

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They are renewable energy sources

6 0
3 years ago
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Where’s the picture?
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C. Digestion is the answer.

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