4 years ago

For (3), why is it incorrect?

1 answer:

5 0

Because two different equations cannot have the same amount of heat being released unless they are equal and in this case they are not

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Does the temperature of water affect how fast salt dissolves

gulaghasi [49]

Yes just like with sugar and water temperature affects the process and warmer water causes faster dissolution.

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4 years ago

Ca(OH)2(aq)+HNO3(aq)→H2O(l)+Ca(NO3)2(aq)

shtirl [24]

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3 years ago

A gas is initially confined to a 1.00 L vessel at 3.00 atm of pressure. A valve connecting the 1.00 L vessel to a 3.00 L vessel

Brilliant_brown [7]

Answer:

c. 0.750 atm .

Explanation:

Hello!

In this case, since the two vessels have different volume, we can see that the gas is initially at 3.00 atm into the 1.00-L vessel, but next, it is allowed to move towards the 3.00-L vessel, meaning that the final volume wherein the gas is located, is 4.00 L; therefore, we use the Boyle's law to compute the final pressure:

$P_2V_2=P_1V_1\\\\P_2=\frac{P_1V_1}{V_2} \\\\P_2=\frac{3.00atm*1.00L}{4.00L}\\\\P_2=0.750atm$

Therefore the answer is c. 0.750 atm .

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8 0

3 years ago

Which group 1 metal and group 2 non metal would react together most?

Talja [164]

Answer:

Potassium and oxygen

Explanation:

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3 years ago

Help please i have 5 minutes to do this !!!

kramer

Answer:

A) One that occurs on its own

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3 years ago