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spin [16.1K]
3 years ago
12

How many atoms are in caco4

Chemistry
1 answer:
deff fn [24]3 years ago
8 0

Answer: 6

Explanation:

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Discription and explain the formation of positive and negative ions​
Ivahew [28]

Answer:

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Explanation:

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3 years ago
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Nail polish remover containing acetone was spilled in a room 7.2 m × 5.8 m × 3.9 m. Measurements indicated that 6,400 mg of acet
sergeinik [125]

Volume of room  = 7.2 m \times 5.8 m \times  3.9 m

= 162.864 m^{3}

Now, according to conversion factor, convert 6,400 mg to micrograms

Since, 1 mg is equal to 1000 microgram.

Therefore, 6,400 mg  = 6,400 \times 1000

= 6,400,000 micrograms of acetone.

To calculate concentration of acetone, divide volume and evaporated amount of acetone in micrograms.

Thus,

Concentration of acetone  = \frac{6,400,000 microgram}{162.864 m^{3}}

= 39296.5910 microgram per cubic meter or 3.92\times 10^{4} \mu g/m^{3}\simeq 4.0\times 10^{4} \mu g/m^{3}

Hence, concentration of acetone is equal to 4.0\times 10^{4} \mu g/m^{3}

7 0
3 years ago
True or False? When solid mixed with other solid, it changed in color, size and shape?
sergeinik [125]

Answer:

False

Explanation:

It becomes a heterogeneous mixture

8 0
3 years ago
This is an underground level where the ground becomes saturated with water.
ozzi

Answer: Pumping can affect the level of the water table. In an aquifer, the soil and rock is saturated with water.

Explanation:

8 0
3 years ago
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A gas tank holds 20000 liters at 850 torr. If the temperature remains constant, what will the volume, in L, of the gas be at sta
nekit [7.7K]

Answer: 22368.4 Liters

Explanation:

Initial Volume of gas V1 = 20000 liters

Initial pressure of gas P1 = 850 torr

Final volume V2 = ?

Final (standard) pressure P2 = 760 torr

Apply the formula for Boyle's law:

P1V1 = P2V2

850torr x 20000L = 760torr x V2

V2 = (850torr x 20000L)/ 760torr

V2 = (17000000)/760torr

V2 = 22368.4L

Thus, the volume of the gas at standard pressure is 22368.4 Liters

6 0
4 years ago
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