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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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Marissa is adding numbers in her head. Which part of her brain is she using? 1.cerebrum 2.cerebellum 3.brain stem
inn [45]
Cerebrum is the part of the brain that we use for imagination, thinking, judgement etc. It is also the largest part of the brain 

Cerebellum is in charge of stuff like the spinal cord 

and the brain stem is the part of the brain that helps us move. (if you watch the walking dead in one of the episodes it teaches this xD) 

hope this helped (:
6 0
3 years ago
Read 2 more answers
Predict the chemical formula of butyne, having one carbon-carbon triple bond.
Svet_ta [14]
Butyne is the alkyne with four carbon atoms, and, as the question states, it has one carbon-carbon triple bond. The general formula of an alkyne is CnH2n-2, that means that when there are 2 carbons the formula is C2H2, when there are 3 carbons the formula is C3H4, and when there are 4 carbons the formula is C4H6. So, <span>butyne is C4H6 or " CH3-C (triple bond) C - CH3" (note that I wrote the phrase triple bond between the two Cs in the middle of the formula because there is no way to draw the three hyphens stacked one over other").</span>
3 0
3 years ago
Determine the grams of sodium chloride produced when 10 g of sodium react with 10 grams chlorine gas according to the equation 2
AleksandrR [38]

Answer:

16 g

Explanation:

Step 1: Write the balanced equation

2 Na + Cl₂ ⇒ 2 NaCl

Step 2: Identify the limiting reactant

The theoretical mass ratio (TMR) of Na to Cl₂ is 46:71 = 0.65:1.

The experimental mass ratio (EMR) of Na to Cl₂ is 10:10 = 1:1.

Since EMR > TMR, Cl₂ is the limiting reactant

Step 3: Calculate the mass of NaCl produced

The theoretical mass ratio of Cl₂ to NaCl is 71:117.

10 g Cl₂ × 117 g NaCl/71 g Cl₂ = 16 g NaCl

7 0
4 years ago
Compound 1 has a composition of 46.7 mass % of element A and 53.3 mass % of element B. A and B also form a second binary compoun
Leviafan [203]

A summary of the Law of multiple proportions is that if A and B form more than one compound, and B1 is the amount of element B which reacts with a fixed mass of A in compound 1, and B2 is the amount of B which reacts with the same fixed mass of B to form compound 2, then the ratio B1:B2 will be small whole numbers.

This law is rather simplistic, and given the range of compounds known today the definition of 'small' is now rather large... but, to answer the question:

in compound one 1.14133g of B reacts with 1g of A. (1.14133=53.3/46.7)  

5 0
3 years ago
8. ? kg/mL = 2.4 x 105 ug /dm^3
alex41 [277]

Answer:

2.4 E-7 Kg/mL = 2.4 E5 μg/dm³

Explanation:

⇒ 2.4 E5 μg/dm³ * ( 1 E-6 g/μg ) * ( 1dm³/L ) * ( L/1000mL ) * ( Kg/1000g )

⇒ 2.4 E5 μg/dm³ = 2.4 E-7 Kg/mL

8 0
3 years ago
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