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Liula [17]
3 years ago
15

Which event is most likely an example of a chemical reaction

Chemistry
1 answer:
Inessa [10]3 years ago
7 0

Explanation:

One example of a chemical reaction is the rusting of a steel garbage can. That rusting happens because the iron (Fe) in the metal combines with oxygen (O2) in the atmosphere. Chemical bonds are created and destroyed to finally make iron oxide (Fe2O3).

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The diagram shows an animal cell.
vovangra [49]

Answer : The correct option is 'X' (mitochondria).

Explanation :

In the given animal cell diagram,

W represent the vacuole.

X represent the mitochondria.

Y represent the nucleolus.

Z represent the cytoplasm.

The function of vacuole, it stores waste products and balance the pH level of the cell.

The function of mitochondria, most of the respiration reaction occurs in which carbon dioxide is produced by utilizing oxygen.

The function of nucleolus, it contains the hereditary information.

The function of cytoplasm, most of the chemical reaction occurs.

Therefore, the correct answer is 'X' (mitochondria).


8 0
3 years ago
Read 2 more answers
2 moles of a gas have a pressure of 2 atm at a temperature of 300 K. What is the volume of the gas?
qwelly [4]
  • No of moles=2mol=n
  • Pressure=2atm=P
  • Temperature=300K=T
  • Volume=V

\\ \tt\hookrightarrow PV=nRT

\\ \tt\hookrightarrow V=\dfrac{nRT}{P}

\\ \tt\hookrightarrow V=\dfrac{2(8.314)(300)}{2}

\\ \tt\hookrightarrow V=8.314(300)

\\ \tt\hookrightarrow V=2494.2mL

\\ \tt\hookrightarrow V=24.94dm^3

4 0
2 years ago
Which kind of statement distinguishes a term from all other terms?
Goshia [24]
I believe the answer is a definition. 
6 0
3 years ago
What is the molarity of a solution that contains 25 g of HCl in 150 mL of solution??
Stels [109]
To find molarity 
1) number of mol of solute.
Solute is HCl.
M(HCl)= 1.0+35.5 =36.5 g/mol

25g *1 mol/36.5 g = 25/36.5 mol HCl

2) Molarity is number of mole of the solute in 1 L solution.
150 mL = 0.150 L

(25/36.5 mol HCl )/(0.150 L) = 25/(36.5*0.150) ≈ 4.57≈4.6 mol/L


3 0
3 years ago
Read 2 more answers
A male construction worker regularly consumes 18 000 kJ of energy per day. Suggest the effects this could have on his health.
Romashka [77]

Answer:

It could lead to Fatigue

Low energy.

Headaches.

Aches, pains, and tense muscles.

Chest pain and rapid heartbeat.

Explanation:

8 0
3 years ago
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