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3 years ago

Which of the following is an example of a combustion reaction?

Chemistry

2 answers:

EleoNora [17]3 years ago

7 0

Answer:

C) Lighting a matchstick

Explanation:

Alexus [3.1K]3 years ago

6 0

Answer:

C) Lighting a matchstick

Explanation:

Mixing an acid and base will cause a neutralization reaction, a type of double displacement.

Photosynthesis is just a series of chemical reactions, but don't deal with the use of O2, but rather it's creation.

Reacting sodium and chlorine would make NaCl in a synthesis reaction.

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Which of these bonds is the weakest?

Olenka [21]

Answer:

The first one has the weakest bond

Explanation:

The number of atoms together shows how strong the bonds in the second bond it is 4 bonds, the third is 8 bonds, the 4th one is 4 bonds thus why the first bond is the weakest.

6 0

3 years ago

Can someone please check my answer??!!!

Ksenya-84 [330]

Answer:

I think its correct

5 0

3 years ago

Read 2 more answers

calculate the number of moles of sulfuric acid that is contained in 250 mL of 8.500 M sulfuric acid solution

san4es73 [151]

Answer : The moles of $H_2SO_4$ are, 2.125 mole.

Explanation : Given,

Molarity of $H_2SO_4$ = 8.500 M

Volume of solution = 250 mL = 0.250 L (1 L = 1000 mL)

Molarity : It is defined as the number of moles of solute present in one liter of volume of solution.

Formula used :

$\text{Molarity}=\frac{\text{Moles of }H_2SO_4}{\text{Volume of solution (in L)}}$

Now put all the given values in this formula, we get:

$8.500M=\frac{\text{Moles of }H_2SO_4}{0.250L}$

$\text{Moles of }H_2SO_4=2.125mol$

Therefore, the moles of $H_2SO_4$ are, 2.125 mole.

5 0

3 years ago

What is a toxic chemical?

My name is Ann [436]

Answer:any substance which may be harmful to the environment or hazardous to your health if inhaled, ingested or absorbed through the skin.

Explanation:

8 0

3 years ago

What organisms is this a whale shark eats algae

ivanzaharov [21]

Whale shark is a marine mammal and it's food is a marine decomposer

6 0

3 years ago