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stich3 [128]
3 years ago
14

Help me pls someone plss???

Chemistry
1 answer:
Dahasolnce [82]3 years ago
6 0

Answer:

I don't know that sO Sis I CanT reAlly hElp yOu

Explanation:

SoRy

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Why is it important to be careful when walking on an icy sidewalk?
Archy [21]

Answer:

The is less friction on an icy surface

Explanation:

This is because when u walk on plain ground there is steady friction on the surface but when u walk on an icy floor these is barely any friction which is why it's hard to walk on.

4 0
2 years ago
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Write the balanced equation showing the decomposition of carbonic acid and sulfurous acid.
Travka [436]

Explanation:

here's the answer to your question

4 0
3 years ago
Which substance can not be decomposed by a chemical change?<br> (1) AlCl3 (3) HI<br> (2) H2O (4) Cu
user100 [1]
Cooper is the substance that can't be decomposed by a chemical chAnge. So 4)
5 0
3 years ago
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What is the molar mass of magnesium carbonate, MgCO3? 52.314 g/mol 84.313 g/mol 96.771 g/mol 102.588 g/mol
Orlov [11]

Answer:

Molar mass of MgCO3 = 84.3 g/mol

Explanation:

What is the molar mass of magnesium carbonate.

Molar mass of a substance is defined as the mass of one mole of the substance expressed in grams hence its unit is gram per mole (g/mol)

MgCO3 is a compound and it's molar mass would be the sum of the molar masses of the elements that make up the compound. MgCO3 contains 1 atom of magnesium, one atom of carbon and 3 atoms of oxygen

Molar mass of Magnesium = 24.3g

Molar mass of Carbon =12g

Molar mass of Oxygen = 16g

Molar mass of MgCO3 will be

24.3 + 12 + 16×3

= 24.3 + 12 +48 = 84.3 g/mol

Molar mass of MgCO3 = 84.3 g/mol

7 0
3 years ago
what would the total pressure of a mixture of fluorine, chlorine, and bromine gases be if the partial pressure are 2.20 atm, 6.7
astraxan [27]

Answer:

The total pressure would be 8, 93 atm

Explanation:

We apply Dalton's laws, where for a gaseous mixture, the total pressure (Pt) is the sum of the partial pressures (Px) of the gases that make up the mixture.

Pt= Pxa + Pxb+ Pxc....

Pt=2, 20 atm+ 6, 70 atm+ 0,03 atm= 8, 93 atm

4 0
4 years ago
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