3 years ago

Why Sncl2 is solid but SnCl4 is liquid at room temperature

1 answer:

5 0

Stannous(IV) chloride is a substance of molecular structure, so it is a liquid and volatile. Stannous(II) chloride is a substance of a crystal structure, therefore, is in the solid state at room temperature.

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Which reaction follows the law of conservation of matter?

Gala2k [10]

It's the law! Matter cannot be created or destroyed in chemical reactions. This is the law of conservation of mass. In every chemical reaction, the same mass of matter must end up in the products as started in the reactants.

6 0

3 years ago

1. A gas has a volume of 45 L at a pressure of 140 kPa. What is the volume when

pishuonlain [190]

Answer:

The new volume of the gas is 21 L.

Explanation:

Volume of a gas is inversely proportional to its pressure at constant temperature such that,

$V\propto \dfrac{1}{P}$

$P_1V_1=P_2V_2$

We have,

$V_1=45\ L\\\\P_1=140\ kPa \\\\P_2=300\ kPa$

It is required to find V₂. Using above law or Boyle's law such that :

$V_2=\dfrac{P_1V_1}{P_2}\\\\V_2=\dfrac{140\times 45}{300}\\\\V_2=21\ L$

So, the new volume of the gas is 21 L.

7 0

3 years ago

Calculate the mass of 3.4 moles of nitric acid (hno3). explain the process or show your work by including all values used to det

balu736 [363]

Answer:

6.34917360^25g

Explanation:

It's been a while since I've done this type of problem so I'm not making any promises that its right hahaha, but I hope it helps anyway. Please let me know whether I'm right or not!