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3 years ago

Find the chemical reactions for each problem

Chemistry

1 answer:

aev [14]3 years ago

3 0

Answer:

uvuvvoxkzsfukzuktsusr sxvtyy I am good at University the University the to

Explanation:

Find the value of the following expression using suitable properties of whole numbers

and name the property used.

789 × 175 – 75 × 789

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Which substance has Hf defined as 0 kJ/mol? H2O (s) Ne (l) O2 (g) CO2 (g)

vlabodo [156]

Answer:

O₂ (g).

Explanation:

All elements that found in nature has heat of formation (Hf) equal 0 J/mol.

So, the substance that has heat of formation (Hf) equal 0 J/mol is O₂ (g).

H₂O is formed from the reaction of hydrogen and oxygen and has Hf, Also, the solidification of H₂O (s) from H₂O (l) has (Hf).

Although, Ne (g) is found in nature and has no Hf, the liquification to form Ne (l) has heat of formation (Hf).

CO₂ (g) is formed from the reaction between carbon and oxygen and so has heat of formation (Hf).

8 0

3 years ago

Read 2 more answers

Cu + 2AgNO3 →

netineya [11]

Answer: 292.54g of Ag

Explanation:

Cu + 2AgNO3 →Cu(NO3)2 + 2 Ag

mass conc. Of Ag = n x molar Mass

Mass conc. Of Ag = 2 x 108 = 216g

From the equation,

63.5g of Cu produced 216g of Ag

Therefore, 86g of Cu will produce Xg of Ag. i.e

Xg of Ag = (86 x 216)/63.5 = 292.54g

5 0

3 years ago

Convert 1.7 Kg to cg

Kipish [7]

To answer this lets first see how much 1 kg is equal to in cg.

1 kg = 100000 cg

Now lets multiply:-

100000 × 1.7 = <span>170000
</span>
So, 1.7 kg = <span>170000 cg
</span>
Hope I helped ya!!!

4 0

4 years ago

Read 2 more answers

The study of all chemicals containing carbon is called ?

Jlenok [28]

The study of all chemicals containing carbon is organic chemistry.

5 0

3 years ago

What continent has no deserts

nevsk [136]

Answer:

Antarctica.

Explanation:

It’s all ice.

4 0

3 years ago