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ratelena [41]
3 years ago
13

The 20 amino acids vary only in their?

Chemistry
1 answer:
Helen [10]3 years ago
8 0
Amino groups due to the chain can extend longer than the other
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An object has a mass of 2800g and a volume of 3cm3. What is its density?<br>​
jeka57 [31]

Answer:

933.33 g/cm³

Explanation:

Density = mass / volume

Density = 2800/3 = 933.3 g/cm³.

4 0
3 years ago
which statement besy describes how the calormeter can be used to determine ghe specific heat capacity of the metal sample
Vesna [10]

Answer:

Energy transfers to the metal from the water and calorimeter until they are all at room temperature.

Explanation:

i hope this helps

4 0
3 years ago
What is true about the formation of a bond?
timama [110]

Answer:

There is an overall release of energy when bonds form.

Explanation:

There is a general release of energy when bonds form. This energy is called bond energy.

Bond energy is involved in the breakdown or formation of one or more bonds between atoms of a molecule. Atoms bond with each other to achieve their electronic stability, that is, they move from a higher energy situation to a lower energy one. With this we can state that when the bond between atoms is formed, energy is released; therefore, its breakdown depends on energy absorption.

3 0
3 years ago
PLEASE HELP
eduard

Answer:

The correct answer is A) circulatory

Explanation:

The circulatory system collects metabolic wastes from the blood, which will be eliminated by the kidneys through urine.

The kidneys are responsible for the elimination of waste, acids and excess fluid from the body, maintaining the balance of water, salts and minerals. Blood flows into the kidney through the renal artery.

4 0
3 years ago
What cause the ratio of PV/RT to drop below 1 when 1 mole of
pentagon [3]

Answer:

pressure and temperature are directly proportional.

Explanation:

At constant temperature and pressure the volume of a gas is directly proportional to the number of moles of gas. Also given a constant temperature and volume the pressure of a gas is directly proportional to the number of moles of gas.

This means that if V is constant then

P = n (RT/V) then n= PV/RT. As P is increased, T is also increased thereby decreasing the value of n since pressure and temperature are directly proportional.

6 0
2 years ago
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