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Karolina [17]
3 years ago
13

The candle is lit and dilute ethanoic acid is poured down the inside of the beaker. As the acid reacts with the baking soda, bub

bles of CO2 gas form. After a few seconds
the air in the beaker is replaced by 0.20 liter of CO2 gas, causing candle flame to go out. The density of CO2 gas is 1.8 grams per liter at room temperature.
Choose the correct structural formula for the acid that was poured into the beaker.

Chemistry
1 answer:
nika2105 [10]3 years ago
5 0

Answer:

It’s answer #2

Explanation:

I only know this because i just got it wrong

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BRAINLIESTT ASAP!! PLEASE HELP ME :)
AURORKA [14]

Answer:

Here's what I get.

Explanation:

Mg + 2HCl ⟶ MgCl₂ + H₂

According to the Law of Conservation of Mass, the total mass of the products must equal the total mass of the reactants.

However, one of the products is a gas, hydrogen. The gas escapes into the atmosphere, so you will not be weighing it at the end of the reaction.

The mass of the test tube and contents after the reaction will be less than before the reaction.

However, that doesn't violate the Law of Conservation of Mass. You just didn't measure the mass of all the products.

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3 years ago
When cool, dense air come over the water flows inland, it's called a?
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The answer to your question is Sea Breeze.
4 0
3 years ago
A type of plate boundary that is transform faults (easily seen where they cut at right angles to the mid-ocean ridges) A.) conve
34kurt
The answer is Option C (Divergent Plate Boundary)

Mapping efforts have shown that mid-ocean ridges<span> are discontinuous structures that cut at </span>right angles<span> to its length at various transform faults. They typically </span><span>demarcate the </span>boundary <span>between two tectonic plates, and are therefore called </span>divergent<span> plate </span>boundaries.
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3 years ago
Which of the following is not true? a. The freezing point of sea water is lower than the freezing point of pure water. b. The bo
Anna007 [38]

Answer:

The false statement is b.

The boiling point of a water sample from the Salt Lake is lower than the boiling point of pure water

Explanation:

This excersise refers to colligative properties.

Boiling point refers to the property of boiling point elevation. In a solution of ions, as water sea or water from lakes, the boiling point will be higher than water pure.

It is logical to say that, because these sort of water have ions. Remember that colligative properties depends on the solute particles.

T° boiling solution - T° pure solvent = Kb . m . i

In the freezing point depression, we have the oppossite of boiling point elevation. Freezing point of solution is lower than pure solvent, according to this:

T° freezing pure solvent - T° freezing solution = Kc . m . i

We have to always consider the i, which means Van't Hoff factor, number of ions dissolved in solution. As the i is higher, the freezing point of solution will be lower, and the boiling point of solution will be higher.

They are true statement a and c.

In solution of., [NaCl] = 0.1M, as it is a higher concentration, the molality is also higher than a solution of [NaCl] = 0.05.

As water sample form Salt Lake has certain ions, it is logical to say that the boiling point of this water is higher than boiling point of pure water.

5 0
3 years ago
Help!!!!?????????? plssssssss
DIA [1.3K]

Answer: it’s b)

Explanation: that’s the only difference that is listed

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