1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Mila [183]
3 years ago
6

Which process is a chemical change?

Chemistry
2 answers:
Vinvika [58]3 years ago
8 0
A. is the correct answer.
4vir4ik [10]3 years ago
8 0
1.
Burning a match

is the correct answer
You might be interested in
M,,,,,,,,,mmmmmmmmmmmmmmmmmmmmmmmmmmmmm
Varvara68 [4.7K]

What is this?????????????

8 0
2 years ago
What is the chemical formula for methane?
aleksandr82 [10.1K]
The chemical formula for methane is CH4

6 0
3 years ago
Use the following equation to answer the questions below.
kaheart [24]

Answer:

1-Double replacement

Explanation:

3 0
2 years ago
An extended period when rainfall is well below average is known as a A. heat index. B. drought. C. draft. D. heat wave.
Anna007 [38]
B. Drought. Hope that helped
5 0
3 years ago
Read 2 more answers
How long would it take to produce enough aluminum to make a case (24 cans) of aluminum soft drink cans if each can used 3 g of a
kozerog [31]

Answer : It takes time to produce 3 g of aluminium is, 165 seconds.

Explanation :

As we are given that the mass of aluminium is, 3 grams. Now we have to calculate the total mass of aluminum.

Total mass of aluminum = 3g × 24 = 72 g

Now we have to calculate the moles of aluminum.

\text{Moles of Al}=\frac{\text{Mass of Al}}{\text{Molar mass of Al}}

Molar mass of Al = 27 g/mol

\text{Moles of Al}=\frac{72g}{27g/mol}=2.67mol

As, 1 mole of Al has 3 Faradays

So, 2.67 mole of Al has = 2.67\times 3=80.1 Faradays

and,

Charge = 80.1\text{ Faradays}\times \frac{96500\text{ coulombs}}{1\text{ Faradays}}=7.73\times 10^6\text{ coulombs}

Current = 5.00\times 10^4A\times \frac{93.9}{100}=46950A

Now we have to calculate the time.

Time=\frac{Charge}{Current}=\frac{7.73\times 10^6}{46950}=164.6s\aaprox 165s

Hence, it takes time to produce 3 g of aluminium is, 165 seconds.

5 0
3 years ago
Other questions:
  • Reaction A has a high activation energy, whereas reacton B has a low activation energy. Which of the statements about reaction A
    12·1 answer
  • The activation energy for the reaction no2(g)+co(g)⟶no(g)+co2(g) is ea = 375 kj/mol and the change in enthalpy for the reaction
    8·1 answer
  • Describe how you think the tiny dust particles acquired a charge.
    6·1 answer
  • A sample of argon gas has a volume of 795 mL at a pres-sure of 1.20 atm and a temperature of 116 ∘C. What is the final volume of
    5·1 answer
  • Which of the following measure would remain consistent no matter it's location?
    15·2 answers
  • If you have 3.48 x 1023 formula units of Lead (II) Permanganate, what is its mass?
    10·1 answer
  • ASAP PLEASE AND THANK YOU
    15·2 answers
  • Writing Chemical Equations
    8·1 answer
  • What is the molecular formula for water?
    15·2 answers
  • How many grams are in 4.39 mol of copper
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!