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mina [271]
3 years ago
5

: Question List

Chemistry
1 answer:
Ira Lisetskai [31]3 years ago
6 0
Potassium it is the answer

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What kind of reaction is 21,02 → 2H,0 + 0,2
RoseWind [281]

Answer:

I think B

Explanation:

Double - replacement

6 0
3 years ago
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The acid dissociation constant, ___, is a quantitative measure of acid strength
8090 [49]

Answer:

The acid dissociation constant, _Ka__, is a quantitative measure of acid strength

Explanation:

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3 years ago
What is the number of moles of Sodium Chloride (NaCl) that is present in 29.22g sample of it?
Liula [17]
There are 0.5 moles of NaCl present in a 29.22g sample.

to find moles of a compound you would look at the periodic table to find the mass. in this case, the mass of NaCl is 58.44 g/mol. now, you divide the sample mass of 29.22g by 58.44 g/mol. the grams will cancel each other out and you’re left with 0.5 mol in that sample

hope this helps!
3 0
3 years ago
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Why Farmers kill the silkworm inside the cocoon .​
liberstina [14]

Answer:

It allows the completion of the metamorphosis of the silkworm to its moth stage, whereas most silk harvesting requires the silkworms to be killed in their cocoon stage. No animals suffer or die for the silk to be produced, making it a favorable alternative to normal silk for those who do not believe in harming animals.

5 0
2 years ago
Question 1 Is the following question true or false All of today's continents were part of one large land mass 225 million years
cupoosta [38]


Question 1 is true because it was called Pangea

Question 2 is false because it had a lot of impact on the distribution of species, before the moving continents animals could roam where ever they want but after the splitting of the continents the species were stuck in one place because water separated other continents and land species cant swim.

7 0
3 years ago
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