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3 years ago

How does water cause weathering of a rock?

Chemistry

1 answer:

klio [65]3 years ago

7 0

Answer:

water wears it down over time, eroding it and weathering it. This usually happens to rocks in creekbeds or near bodies of water

hope this helps :)

Explanation:

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Calculate the mass of magnesium carbonate ( MgCO3), in grams, required to produce 110.0 g of carbon dioxide using the following

bearhunter [10]

Answer:

$210.7~g~MgCO_3$

Explanation:

We have to start with the reaction:

$MgCO_3~->~MgO~+~CO_2$

We have the same amount of atoms on both sides, so, we can continue. The next step is to find the number of moles that we have in the 110.0 g of carbon dioxide, to this, we have to know the atomic mass of each atom:

C: 12 g/mol

O: 16 g/mol

Mg: 23.3 g/mol

If we take into account the number of atoms in the formula, we can calculate the molar mass of carbon dioxide:

$(12*1)+(16*2)=44~g/mol$

In other words: $1~mol~CO_2=~44~g~CO_2$ . With this in mind, we can calculate the moles:

$110~g~CO_2\frac{1~mol~CO_2}{44~g~CO_2}=25~mol~CO_2$

Now, the molar ratio between carbon dioxide and magnesium carbonate is 1:1, so:

$2.5~mol~CO_2=2.5~mol~MgCO_3$

With the molar mass of $MgCO_3$ ( $(23.3*1)+(12*1)+(16*3)=84.3~g/mol$ . With this in mind, we can calculate the grams of magnesium carbonate:

$2.5~mol~MgCO_3\frac{84.3~g~MgCO_3}{1~mol~MgCO_3}=210.7~g~MgCO_3$

I hope it helps!

8 0

3 years ago

When Arti kicks a football, two forces interact. Arti's foot exerts a force of 5N on the ball. What size force will be exerted o

Papessa [141]

A size force of 5N will be exerted on Artl's foot.

This is because Newton's third law of motion, where in which an action occurs, a reaction will occur with the same amount of force, but reversed towards the direction of the area where the action occurred.

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3 years ago

Pls Help this is my last question on the quiz - Which two types of energies involve changes in atoms or atom rearrangement?

Vera_Pavlovna [14]

Answer:

Sound & Mechanical (i think)

Explanation:

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2 years ago

Farmer Brown has sprayed his fields to kill the grasshoppers eating the grass in his pastures. Predict what will happen to the o

exis [7]

Their numbers will decrease, because the animals can no longer feed on the grasshoppers AND if they try to, they will be poisoned.

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3 years ago

There are several ways that a mutation may occur. Which of the following is not a way for a mutation to occur during the DNA rep

FinnZ [79.3K]

Answer:

C. All of the organism’s genes are removed.

Explanation:

Mutation does not occur during DNA replication or copying process by removing all of the organism's gene. This is quite impossible.

Mutation is term registered in genetics. They are the changes that occurs to genes when being copied or sometimes as a result of imparting environmental factors like exposures to ultraviolet radiation.

Genes can mutate when sections are mistakenly removed or added.
Also, when entire gene is reversed, genes can mutate too.

Genes do not mutate by removing all of them. It is biologically inconsistent.

5 0

3 years ago

How does water cause weathering of a rock?​

How does water cause weathering of a rock?