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Mashutka [201]
3 years ago
13

In an experiment, acid was added to two solutions:

Biology
1 answer:
Novay_Z [31]3 years ago
8 0

Answer:

Choice C. Sodium bicarbonate acted as a pH buffer in Solution 2.

Explanation:

Sodium carbonate is used as pH buffering agent. Buffering agent is a type of solution which contains weak base or acid which stabilize the solution when another strong acid or base is added to the solution. If acid is added, the weak base that is present in the solution reacts with it and when base is added, weak acid reacts with it.

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Find the kinetic energy of an 8 kg object at 4 seconds.
Levart [38]

Answer:

Given that ,

Mass of object , m=8kg

Velocity of object , v=4s

Kinetic energy of object , K=

2

1

mv

2

=

1/2×8×4^2

=64 N

6 0
3 years ago
Which of the following statements about peptide bonds are true? 1) A tetrapeptide contains five amino acid residues. 2) Peptide
Y_Kistochka [10]

The correct answers are:

2) Peptide bonds form from nucleophilic attack by an electron pair on an alpha - amino nitrogen atom on an alpha - carboxyl carbon atom of another amino acid and

4) Peptides are polymers of amino acids.

A peptide bond is an amide type of covalent chemical bond. It is formed between two amino acids:  C1 (carbon end) of one alpha-amino acid and N2 (nitrogen end) of another. Peptide bonds are the basis for the formation of a peptide chain and consequently protein.  Formation of peptide bond is a condensation process, meaning that when two amino acids combine and link, water molecule is released and dipeptide is a product of that reaction.

7 0
3 years ago
Read 2 more answers
Sandstone and basalt can be changed by heat and pressure to form _____.
Artemon [7]
B- Metamorphic rocks. metamorphic rocks are formed through the change of igneous and sedimentary rocks. which sandstone and basalt are. metamorphic rocks are also formed through heat and pressure
6 0
4 years ago
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"Jasmine is trying to lose weight. She has decided to try a diet that lets her eat unlimited amounts of protein. The protein tha
Elanso [62]

Answer:

converted into fat and stored in adipose tissue

Explanation:

When protein is taken in excess amount, because it cannot be stored in the body, it can be broken down to amino acids, which is further used as carbon skeletons to synthesize fats, which is then further stored in the adipose tissues.

When the body is not receiving enough calories from other nutrient sources like carbohydrates and fats, the available protein is the used as energy to meet the body's energy demands, by converting it to fat.

Note that, excess intake of protein can be harmful to the body.

6 0
3 years ago
Which of the following could result in the extinction of a species?
mylen [45]

Increased population size will result in the extinction of a species of organisms.

<h3>What is Extinction?</h3>

This is defined as the dying out or disappearance of species as a result of various factors.

When population size increases, it leads to unavailability of food and reduction of species due to starvation and death.

Read more about Extinction here brainly.com/question/1027555

#SPJ1

7 0
2 years ago
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