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slava [35]
3 years ago
11

What's the ratio of atoms of each element in the compound ammonium monohydrogen phosphate (NH4)2HPO4?

Chemistry
1 answer:
GREYUIT [131]3 years ago
4 0
So there are 2 N, 9 H, 1 P and 4 O. so N:H:P:O is 2:9:1:4? i think
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Answer:

<h2>D</h2>

Explanation:

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8 0
3 years ago
An iron block of mass 18 kg is heated from 285 K to 318 K. If 267.3 kJ is required, what is the specific heat of iron?
creativ13 [48]

Answer:

D. 450 J/kgK

Explanation:

Using the formula as follows:

Q = m × c × ∆T

Where:

Q = amount of heat absorbed/released (J)

m = mass of substance (g)

c = specific heat capacity

∆T = change in temperature (°C)

According to the information provided in this question:

Q = 267.3 kJ = 267300J

m = 18kg

∆T = 318K - 285K = 33K

c = ?

Q = m × c × ∆T

c = Q ÷ m∆T

c = 267300 ÷ 18 × 33

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c = 450 J/kgK

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Which of the following correctly describes a compound
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