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liq [111]
3 years ago
15

All STEM subjects require ________________ skills. a. Same b. Different

Chemistry
1 answer:
Andreyy893 years ago
3 0
B different skills as every subject varies from each other
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How many atoms of potassium are in 0.250 mol of potassium carbonate, k2co3?
Verizon [17]
The  number  of  potassium  atom  that  are  in  0.25  moles   potassium  carbonate  is  calculated  as  follows

by  use  of Avogadro  contant

1  mole=  6.02  x10^23   atoms

what  about  0.25 moles,   
by  close  multiplication

{0.250 moles  x 6.02  x10^23}  /  1 mole  =  1.505  x10^23  atoms
4 0
3 years ago
Starch and cellulose are both produced by plants, yet one is easily digested by animals and the other is not. Discuss the differ
Nadusha1986 [10]
<span>Starch and cellulose have the same substance but different structures. They are both polysaccharides. The basic unit of a polysaccharide is the glucose. Glucose, which contains carbon, hydrogen, and oxygen, have two forms. The alpha-glucose with an alcohol group attached to carbon 1 is down and the beta-glucose with the alcohol group attached to carbon 1 is up. Starch is the alpha-glucose while cellulose is the beta-glucose. Starches are linked into a straight chain whereas the cellulose are connected like a pile of stack paper. When the human body eats starch, it can digest the starch but not the cellulose because it has no enzyme that can break it down. </span>
4 0
2 years ago
What can fossils tell us about movements of the plates in the past
Evgen [1.6K]
It can tell us how old they are and how and where they moved in the past.
8 0
2 years ago
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SOMEONE EXPLAIN THIS TO ME?!?!
labwork [276]

Answer:

Determining the pH of substances such as purple grape juice and catsup using test strips can be difficult. Why?

Explanation:

Due to the tartaric acid present in these substances, this is a weak acid and is the predominant type of acid in grapes.

pH meters for these substances, measure the total acidity of the sample and convert it into tartaric acid concentration; The test strips are a qualitative method of measurement and their result can give different opinions.

7 0
3 years ago
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Sodium atoms differ from sodium ions in that sodium atom contains
Olenka [21]

Explanation:

sodium atom is neutral while sodium ion is a charged specie with a charge of +1

3 0
2 years ago
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