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umka2103 [35]
2 years ago
8

A gas has a volume of 250 mL at 0.29 atm. What will its volume be if the pressure is changed to 0.70

Chemistry
1 answer:
kvv77 [185]2 years ago
6 0

Answer:

yessssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss

Explanation:

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Which of these is a pure substance? A) a penny B) Sugar C) ocean water D) iced tea
Ann [662]
Heyo,

Sugar is a pure substance. A pure substance is a substance that has chemical properties. Sugar is a pure substance.
8 0
3 years ago
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Calculate the molar mass of NH4NO3.
ozzi

Answer:

80.043 g/mol

Explanation:

Ammonium nitrate is a chemical compound, the nitrate salt of the ammonium cation. It has the chemical formula NH ₄NO ₃, simplified to N₂H₄O₃. It is a white crystalline solid and is highly soluble in water. It is predominantly used in agriculture as a high-nitrogen fertilizer.

7 0
3 years ago
I need help with this question
Maru [420]

Aluminum sulfide : Al₂S₃

ratio cation : anion = 2 : 3

<h3>Further explanation</h3>

Given

Compound of Aluminium

Required

cations anions ratio

Solution

Salt can be formed from cations and anions which have their respective charges.

In the chemical compound formula these charges are crossed with each other

For aluminum it has a +3 charge

1. Aluminum carbide : Al₄C₃

ratio cation : anion = 4 : 3

2. Aluminum chloride : AlCl₃

ratio cation : anion = 1 : 3

3. Aluminum sulfide : Al₂S₃

ratio cation : anion = 2 : 3

4. Aluminum nitride : AlN

ratio cation : anion = 1 : 1

3 0
2 years ago
The element thallium is 70% thallium-205 and 30% thallium-203. Calculate its relative atomic mass to 1 decimal place.
xxMikexx [17]

Answer:

answer-

The relative atomic mass = 204.4

explanation:

Thallium -203 = 30%

Thallium -205 = 70%

Therefore ,

relative mass of thallium = (30×203 + 70×205)/100

relative mass of thallium = (20440)/100

relative mass of thallium = 204.40 amu

Thus,

relative atomic mass of thalium =204.4 ( to 1 decimal place)

6 0
3 years ago
What element is an atom that has 7 protons 8 neutrons and 6 electrons?
andreev551 [17]

Answer:

I think it should be Carbon.

6 0
2 years ago
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