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zhuklara [117]
3 years ago
15

Limestone is used to make cement and mortar. a. True b. False

Chemistry
1 answer:
marusya05 [52]3 years ago
8 0
The awnser is true maybe
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A certain organic compound is made up of the amino acids methionine, arginine, and leucine. Which type of organic compound is th
Andrews [41]

<em>Answer:</em>

  • The protein is an organic compound which is made up of the amino acids methionine, arginine, and leucine etc. 

<em>Explanation:</em>

  • Most of the amino acid are linked with others amino acid through peptide linkage to form proteins. The peptide bond is formed between the two amino acid involving carboxylic and amino group.
  • The proteins produce by this way may be simple, conjugated and derived proteins.


4 0
3 years ago
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Which of the following elements has the greatest metallic character?<br> Rb<br> Mo<br> Au<br> B
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Au. fifififiof

Explanation:

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3 years ago
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Which ecosystem is the least stable?
Softa [21]

Answer:

tundra bc it has barley any food source and has vary little inhabitants

Explanation:

6 0
3 years ago
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Zina [86]

Answer:

Explanation:

n CaCO3 = mass / m.wt

             = 500  /( 40 + 12 + 16x 3)

           =   5 mole

n CaO = 5 moles  ( from the balanced equation we have 1:1 moles )

mass of CaO = nCaO X m.wt

                       5 x(  40 +16 )

                 =   280 grams

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3 years ago
Hawaii, which sits over a hot spot located near the center of the Pacific
Gnoma [55]

Answer:

Shield Volcano . I've been their before

Explanation:

4 0
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