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Sever21 [200]
2 years ago
6

1. How many joules of heat are necessary to melt 500 g of ice at its freezing point?

Chemistry
1 answer:
ololo11 [35]2 years ago
7 0

Answer: To melt 500 g of ice, 4000 joule of heat is required.

Explanation:

I love the helps

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A compound is found to contain 43.66% of P and 56.33% of O.
jek_recluse [69]

Answer: P2O5 is the empirical formula.

Explanation: When given percentages you can assume that many grams of each atom are in the compound. Then you divide grams by the molar mass of each element, giving you moles. Once you have moles, divide by the smaller molar amount, which should give you 1 mol of Phosphorus and 2.5 mol of Oxygen. Then multiply by 2 in order for both moles to be a whole number. This gets you 2 and 5.

6 0
3 years ago
Ava, Inc., issued 7% bonds, dated January 1, with a face amount of $117,200 on January 1, 2016 for an issue price of 106.5. The
natta225 [31]

Complete Question

The complete question is shown on the first uploaded image

Answer:

10a The interest payment on the bond is = $ 8,204

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Explanation:

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8 0
3 years ago
Which of the following most likely happens when the volume of a gas increases?
mafiozo [28]

the pressure of the gas increases

6 0
3 years ago
What type of cells are gametes?
ELEN [110]

Answer:

Reproductive cells(also known as sex cells) are gametes.

Explanation:

Have a great day :)

6 0
3 years ago
Read 2 more answers
Potassium permanganate as a symbol
Alexxx [7]

Answer: KMnO4-

Explanation:

You're looking at one potassium plus a polyatomic ion.

So K plus MnO4, equals:

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It also has a molar mass of 158.04 g/mol, I don't know if you need that, but I thought it would be nice to include it.

7 0
3 years ago
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