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zimovet [89]
3 years ago
6

A sample of air is slowly passed through aqueous Sodium hydroxide and then over heater copper.

Chemistry
2 answers:
miv72 [106K]3 years ago
8 0

Answer:

Option b) Carbon dioxide and oxygen

Explanation:

Thinking process:

Sodium hydroxide is an alkaline solid substance. It reacts with acids to form salts and water. In this case, it is known that carbon dioxide, CO₂, is an acidic gas. Therefore, the reaction gives a salt that results in carbon dioxide being absorbed by the sodium hydroxide.

Heated copper is an excellent removal of oxygen. This is because monovalent copper, Cu, has a deep binding affinity for oxygen.  Hence the the oxygen trapped by the atom.

faust18 [17]3 years ago
4 0
A sample of air is slowly passed through aqueous Sodium hydroxide and then over heater copper <span>Carbon dioxide and oxygen.</span>
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Explanation:

Water is called the universal solvent. It is a polar molecule (105 degree angle between the H atoms)   that gives it a + and a - side so to speak....which allows it to 'pull apart'  substances....overcome their intra-molecular attractions to each other ...i.e. disssovle them

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Which states of water can you find in your home? Explain.
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5 0
3 years ago
Consider the reaction, C2H4(g) + H2(g) - C2H6(8), where AH = -137 kJ. How many kilojoules are released when 3.5 mol of CH4
antiseptic1488 [7]

Answer: 480 kJ of energy is released when 3.5 mol of C_2H_4 reacts.

Explanation:

The balanced chemical reaction is:

C_2H_4(g)+H_2(g)\rightarrow C_2H_6(g)  \Delta H=-137kJ

Thus it is given that the reaction is exothermic (heat energy is released) as enthalpy change for the reaction is negative.

1 mole of C_2H_4 on reacting gives = 137 kJ of energy

Thus 3.5 moles  of C_2H_4 on reacting gives = \frac{137}{1}\times 3.5=480 kJ of energy

Thus 480 kJ of energy is released when 3.5 mol of C_2H_4 reacts.

7 0
3 years ago
What is the definition of erosion? the process by which sediment settles out of water the soil and rocks deposited by moving wat
Travka [436]

Answer:

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Explanation:

3 0
3 years ago
Read 2 more answers
Urgent! Please help me solve this Chemistry problem.
puteri [66]

Considering the equation,

3Na₂SO₄(aq)+2Al(NO₃)₃(aq)------>Al₂(SO₄)₃(s)+6NaNO₃(aq)

As it can be seen from the equation,

2 moles of Al(NO₃)₃ reacts with 3 moles of Na₂SO₄ to give 1 mol of Al₂(SO₄)₃.

Here 690 mL of 2.5 M Al(NO₃)₃=2.5× 690/1000

=1.7 mol of Al(NO₃)₃

As 2 moles of Al(NO₃)₃ give 1 mol of Al₂(SO₄)₃

So 1.7 mol of Al(NO₃)₃ give 1.7/2 mol of Al₂(SO₄)₃

so it will give 0.86 mol of Al₂(SO₄)₃.

Moles=mass given /molar mass

molar mass of Al₂(SO₄)₃= 342.1509 g/mol

Moles= mass given/342.1509

0.86=mass given/342.1509

mass of Al₂(SO₄)₃=295.1 g

so 295.1 g of Al₂(SO₄)₃ will be produced.

5 0
3 years ago
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