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Shalnov [3]
3 years ago
6

Which element have zero valency

Chemistry
1 answer:
choli [55]3 years ago
4 0
The answer is Helium. hope its helpful (:
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If a beaker of water and a beaker of acetic acid are at the same elevated temperature, which will cool more quickly to room temp
4vir4ik [10]
The beaker of acetic acid will cool more quickly.

The specific heat capacity of acetic acid is about half that of water.
Thus, it takes twice as much heat gain (or loss) in acetic acid to cause a given change in temperature.
If everything else is constant and heat is being lost at the same rate, the temperature of the acetic acid should drop twice as fast as that of water.
4 0
4 years ago
Who was one of the first scientists to realize the effects of CO2 in the atmosphere?
guapka [62]

Answer:

<u>Who: </u>Svante Arrhenius.

When: Claimed in 1896 that fossil fuels has a negative effect on our atmosphere.

<u>How:</u> Svante Arrhenius proved that fossil fuels had a negative effect by calculating the output of buildings that emit fossil fuels, and lead to the conclusion by his calculations that the industry might one day bring global warming. Svante Arrhenius' theory of electrolytic dissociation and his model of the greenhouse effect also helped him to prove that his remarks about fossil fuels and global warming is true.

<u>Where:</u>

I cannot find any source that mentions the where. What do you mean by where?

I hope my other information help you. I apologies to only be able to answer partially.

5 0
3 years ago
Which statement about silver (Ag) metal is least reliable?
brilliants [131]
The answer to the question is the first opti.on.A
8 0
3 years ago
Read 2 more answers
A household cleaner has a pH around 10. It would be considered
anyanavicka [17]

Answer:

an acid

Explanation:

A household cleaner has a pH around 10. It would be considered. a base. an acid. neutral. a liquid.

4 0
3 years ago
Read 2 more answers
You have 2 moles of NaOH how many molecules of NaOH?
kaheart [24]

Answer:

12.044 X 10^23 molecules of NaOH

Explanation:

because NaOH is an ionic bond, we should be asking how many <em>formula units </em> are in 2 moles of NaOH, there are 0 molecules since NaOH is measured in formula units.

but for the sake of the problem I'll assume NaOH is measured in molecules

for every mol of something there are 6.022 X 10^23 of something of that something.

so there are 6.022 X 10^23 molecules for every mol of NaOH

that means we have 2 X 6.022 X 10^23 molecules in 2 moles of NaOH = 12.044 X 10^23 molecules of NaOH

4 0
3 years ago
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