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3 years ago

Some living things do not need energy true or false

Chemistry

2 answers:

MakcuM [25]3 years ago

6 0

False all living things need energy even the ones that can’t move which are plants, who still need energy.

Angelina_Jolie [31]3 years ago

6 0

Answer: False
Explanation: Without energy, it is not possible to survive. Sugar molecules are needed for cellular respiration. Animals get sugar molecules from their food, by eating other organisms.

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Glycerine is viscous than water?why

Sloan [31]

Answer:

Yes

Explanation:

Why is glycerol more viscous than water?

The glycerine is more viscous than water because due to presence of hydrogen atoms , we all know that glycerine has more hydrogen bonding than water molecule , which makes an aggregation which means that glycerine is more viscous than water , in simple words glycerine can't flow as that of water molecule.

7 0

3 years ago

Consider the reaction:

Flura [38]

Answer:

2 one is the correct one

Explanation:

5 0

3 years ago

Which of the following is a physical change? A) sawing a piece of wood in half. B) burning a piece of wood. C) rust forming on a

algol13

The on that is considered a physical change is : A. Sawing a piece of wood in half

When you cut a piece of wood, the chemical compound within the wood will not change at all, which mean that it's a physical change

hope this helps

5 0

4 years ago

Write iupac name of :

Orlov [11]

A)Nitrogen (IV) oxide

B)propane

4 0

3 years ago

The decomposition of NH4HS is endothermic: NH4HS(s)⇌NH3(g)+H2S(g) Part A Which change to an equilibrium mixture of this reaction

shepuryov [24]

Explanation:

According to Le Chatelier's principle, any disturbance caused in an equilibrium reaction will shift the equilibrium in a direction that will oppose the change.

As the given reaction is as follows.

$NH_{4}HS(s) \rightleftharpoons NH_{3}(g) + H_{2}S(g)$

(a) When increase the temperature of the reactants or system then equilibrium will shift in forward direction where there is less temperature. It is possible for an endothermic reaction.

Thus, formation of $H_{2}S$ will increase.

(b) When we decrease the volume (at constant temperature) of given reaction mixture then it implies that there will be increase in pressure of the system. So, equilibrium will shift in a direction where there will be decrease in composition of gaseous phase. That is, in the backward direction reaction will shift.

Hence, formation of $H_{2}S$ will decrease with decrease in volume.

When we increase the mount of $NH_{4}HS$ then equilibrium will shift in the direction of decrease in concentration that is, in the forward direction.

Thus, we can conclude that formation of $H_{2}S$ will increase then.

3 0

3 years ago