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a_sh-v [17]
3 years ago
8

Howmanyatoms arepresentin one mole of Ca [OH)2​

Chemistry
1 answer:
Fiesta28 [93]3 years ago
8 0
6.02 times 10 to the 23rd power
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Answer:

The answer is option A.

Compound

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2 years ago
What is the volume of 9.5 g fluorine gas, F2, at STP?
Tju [1.3M]

Answer:

5.6L

Explanation:

At STP, the pressure and temperature of an ideal gas is

P = 1 atm

T = 273.15k

Volume =?

Mass = 9.5g

From ideal gas equation,

PV = nRT

P = pressure

V = volume

n = number of moles

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T = temperature of the ideal gas

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V = 5.599L = 5.6L

The volume of the gas is 5.6L

5 0
3 years ago
1 kg of water (specific heat = 4184 J/(kg K)) is heated from freezing (0°C) to boiling (100°C). What is the change in thermal en
Andrews [41]

Answer: 1560632 joules

Explanation:

The change in thermal energy (Q) required to heat ice depends on its Mass (M), specific heat capacity (C) and change in temperature (Φ)

Thus, Q = MCΦ

Given that:

Q = ?

Mass of frozen water (ice) = 1kg

C = 4184 J/(kg K)

Φ = (Final temperature - Initial temperature)

= 100°C - 0°C = 100°C

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Q = 1kg x 4184 J/(kg K) x 373K

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3 years ago
Non motile in an sentences
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Motile bacteria have flagella, while nonmotile bacteria do not.

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