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lakkis [162]
3 years ago
12

What is true about cellular respiration?

Chemistry
2 answers:
Hunter-Best [27]3 years ago
8 0

Answer:

Cellular respiration is an exothermic chemical reaction.

Explanation:

Energy is the ability to perform a job or to produce heat. Chemical reactions involve a rearrangement of atoms between substances with rupture or formation of chemical bonds and this generates changes in the energy of the system.

An exothermic reaction is one where energy is released from the system into the environment in the form of heat.  

Cellular respiration is carried out in the mitochondria of the cells. There the oxygen absorbed from the external environment is combined with carbohydrates (raw material) to release the chemical energy they contain. Water vapor and carbon dioxide are also released.

Then, <u><em>Cellular respiration is an exothermic chemical reaction.</em></u>

Aleksandr [31]3 years ago
8 0

Answer: C.

Explanation: Cellular respiration will release energy (exothermic), and the atoms in the reactants will rearrange into something else, a chemical change.

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Explain the type of intermolecular forces exist in glycine molecule.​
olga2289 [7]

Answer:

There are three types of intermolecular forces: London dispersion forces (LDF), dipole- dipole interactions, and hydrogen bonding. Molecules can have any mix of these three kinds of intermolecular forces, but all substances at least have LDF.

3 0
3 years ago
1. How much heat is required to melt 25.0 g of ice at 0°C?
tigry1 [53]

Answer: The heat required to melt 25.0 g of ice at 0^0C is 8350 Joules

Explanation:

Heat of Fusion tells us how much energy is needed to convert 1g of a solid to a liquid at the same temperature.

Q=m\times L

Q = Heat absorbed = ?  

m = mass of ice = 25.0 g

L = Latent heat of fusion of ice = 334 J/g

Putting in the values, we get:

Q=25.0g\times 334J/g=8350J

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8 0
3 years ago
Balance the following equation<br> mg(s)+ HCl H2)g)+MgCl2
Marat540 [252]
<h3>Given equation:-</h3>

\\ \sf\longmapsto Mg+HCl\longrightarrow MgCl_2+H_2

<h3>BALANCED EQUATION:-</h3>

\\ \sf\longmapsto Mg+2HCl\longrightarrow MgCl_2+H_2

6 0
3 years ago
The measure of how much solute is mixed in with a solvent is called
UkoKoshka [18]
The measure of how much solute is mixed in with a solvent is called concentration. It's how much solute was put into the solvent (most likely water) <span />
6 0
3 years ago
PLEASE HELP I NEED THIS ANSWERED IN 10 MINS PLEASE
elena-14-01-66 [18.8K]
We are given the equation to use which is:
ΔG = ΔH - TΔS

We are also given that:
ΔG = 173.3 kJ
T = 303 degrees kelvin
ΔH = 180.7 kJ

Substitute with these givens in the above equation to get ΔS as follows:
ΔG = ΔH - TΔS
173.3 = 180.7 - 303ΔS
303ΔS = 180.7 - 173.3 
303ΔS = 7.4
ΔS = 7.4 / 303 = 0.02442 kJ/K which is equivalent to 24.42 J/k

Based on the above calculations, the correct choice is:
D. 24.42 J/K
4 0
3 years ago
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