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4 years ago

7

An ion is:

1 answer:

Nonamiya [84]4 years ago

6 0

Answer:

C. A positively or negatively charged atom

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________ is a major dissolved volatile constituent in both magmas and volcanic gases?

Mnenie [13.5K]

water is a major dissolved volatile constituent in both magmas and volcanic gases

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3 years ago

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A hydrated sample of cobalt II chloride has a molar mass of 309.99 g/mol. What is the mole ratio between cobalt II chloride and

VLD [36.1K]

Explanation:

Let there be 1 mole of CoCl2.

Mass of CoCl2 = 1mol * (129.839g/mol) = 129.839g

Mass of H2O = 309.99g - 129.839g = 180.151g

Moles of H2O = 180.151g / (18g/mol) = 10mol

Hence the mole ratio of CoCl2 to H2O is 1 : 10.

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3 years ago

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Which process works with erosion to break down rock?

dalvyx [7]

Answer:

weathering

Explanation:

one brakes it down the other carries it away

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What is the oxidation number of S in Li2SO4?

viktelen [127]

+6 is the answer i believe

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The volume of a gas is 650. mL at 1.14°C. What will the volume be a 75.0°C?

tia_tia [17]

<u>Answer:</u> The final volume of the gas is 825.12 mL

<u>Explanation:</u>

To calculate the final temperature of the system, we use the equation given by Charles' Law. This law states that volume of the gas is directly proportional to the temperature of the gas at constant pressure.

Mathematically,

$\frac{V_1}{T_1}=\frac{V_2}{T_2}$

where,

$V_1\text{ and }T_1$ are the initial volume and temperature of the gas.

$V_2\text{ and }T_2$ are the final volume and temperature of the gas.

We are given:

$V_1=650mL\\T_1=1.14^oC=(1.14+273)K=274.14K\\V_2=?mL\\T_2=75^oC=(75+273)K=348K$

Putting values in above equation, we get:

$\frac{650mL}{274.14K}=\frac{V_2}{348K}\\\\V_2=\frac{650\times 348}{274.14}=825.12mL$

Hence, the final volume of the gas is 825.12 mL

3 0

3 years ago