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balu736 [363]
3 years ago
15

What happened after the gas syringe was inserted into the flask with the methane gas?

Chemistry
1 answer:
ad-work [718]3 years ago
7 0
When a syringe  is  inserted  into    the  flask  containing  methane  gas  the  plunger  of  the  syringe  is  raise  up.  This  led  to  filling  of  the  syringe  with  the  gas.This  relate  to  Charles  law   which  explain how  gas  expand with  increase  in  temperature.
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This investigation is a controlled experiment, so you can change only one variable at a time. Which reactant do you think Koby s
WINSTONCH [101]

Answer:

The baking soda

Explanation:

This is the more reactive part of the experiment. The more baking soda there is (compared to the vinegar), the stronger the reaction.

6 0
2 years ago
. The freezing point of an aqueous solution containing a nonelectrolyte solute is – 2.79 °C. What is the boiling point of this s
Semmy [17]

Answer:

Boiling point of the solution is 100.78°C

Explanation:

This is about colligative properties.

First of all, we need to calculate molality from the freezing point depression.

ΔT = Kf . m . i

As the solute is nonelectrolyte, i = 1

0°C - (-2.79°C) = 1.86 °C/m . m . 1

2.79°C / 1.86 m/°C = 1.5 m

Now, we go to the boiling point elevation

ΔT = Kb . m . i

Final T° - 100°C  =  0.52 °C/m . 1.5m . 1

Final T° =  0.52 °C/m . 1.5m . 1  + 100°C → 100.78°C

4 0
3 years ago
4th one<br> Mark the brainliest
ale4655 [162]

Answer:

1. The electronic configuration of X is: 1s2 2s2 sp6 3s2

2. The configuration of the anion of Y (i.e Y^2-) is 1s2 2s2 2p6

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Explanation:

For X to loss two electrons, it means X is a group 2 element. X can be any element in group 2. The electronic configuration of X is:

1s2 2s2 sp6 3s2

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Y receives two electrons from X to complete its octet. Therefore Y is a group 6 element. The electronic configuration of Y is given below

1s2 2s2 2p4

The configuration of the anion of Y (i.e Y^2-) is 1s2 2s2 2p6

The formula of the compound form by X and Y is given below :

X^2+ + Y^2- —> XY

Their valency will cancel out thus forming XY

4 0
3 years ago
Balanced symbol equation for reaction between sodium carbonate solution and dilute sulphuric acid?
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Answer:

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Explanation:

3 0
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