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elena-14-01-66 [18.8K]
3 years ago
11

How many oxygen atoms are there in the following compound: 2HNO3 3 5 6 12

Chemistry
2 answers:
Fudgin [204]3 years ago
7 0

Answer:

6

Explanation:

There is 2 of the coumpond, in one compound, there are 3 oxygens. But when there are two, it is 6.

Ahat [919]3 years ago
3 0

Answer:

The answer is there are 3 oxygen atoms.

Explanation:

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A sample of aluminum, which has a specific heat capacity of , is put into a calorimeter (see sketch at right) that contains of w
Oksanka [162]

Complete Question

A sample of aluminum, which has a specific heat capacity of 0.897 JB loc ! is put into a calorimeter (see sketch at right) that contains 200.0 g of water. The aluminum sample starts off at 85.6 °C and the temperature of the water starts off at 16.0 °C. When the temperature of the water stops changing it's 20.1 °C. The pressure remains constant at 1 atm. Calculate the mass of the aluminum sample.

Answer:

M=58g

Explanation:

From the question we are told that:

Heat Capacity H=0.897

Mass of water M=200g

Initial Temperature of Aluminium T_a=85.6

Initial Temperature of Water T_{w1}=16.0

Final Temperature of Water  T_{w2}=16.0

Generally

Heat loss=Heat Gain

Therefore

M*0.897*(85.6-20.1) =200*4.184*(20.1-16)

M=58g

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The geocentric theory was once accepted as an explanation of how objects were positioned in our solar system. Which statement be
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Aluminum has a density of 2.70g/cm what is the volume occupied by a block of aluminum which weights 4.32kg
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Answer:

Explanation:

0.000625 cm3  

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Label B-L in the diagram below
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Answer:

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