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Anestetic [448]
3 years ago
15

Which of the following vary for isotopes of atoms of the same element?

Chemistry
2 answers:
cupoosta [38]3 years ago
7 0

Answer:

The answer is B. Atomic Mass

Mila [183]3 years ago
5 0
Atomic mass because “Different isotopes of the same element have the same atomic number. They have the same number of protons.” and it cant be electrons since they’re equal to protons and in isotopes only neutrons are differnet. “Isotopes are atoms with different atomic masses which have the same atomic number.”
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In which substance does chlorine have an oxidation number of +1?
Anton [14]
The answer is (3) HClO. In the Cl2, chlorine has an oxidation number of zero. In HCl, the oxidation number is -1. In HClO2, the oxidation number is +3. In HClO, it is +1. You can calculate this by using O with oxidation number of -2 and H with +1.
8 0
3 years ago
The "air bags" that are currently installed in automobiles to prevent injuries in the event of a crash are equipped with sodium
stellarik [79]

Answer:

0.0177 L of nitrogen will be produced

Explanation:

The decomposition reaction of sodium azide will be:

2NaN_{3}(s)--->2Na(s)+3N_{2}(g)

As per the balanced equation two moles of sodium azide will give three moles of nitrogen gas

The molecular weight of sodium azide = 65 g/mol

The mass of sodium azide used = 100 g

The moles of sodium azide used = \frac{mass}{molarmass}=\frac{100}{65}=1.54mol

so 1.54 moles of sodium azide will give = \frac{3X1.54}{2}=2.31mol

the volume will be calculated using ideal gas equation

PV=nRT

Where

P = Pressure = 1.00 atm

V = ?

n = moles = 2.31 mol

R = 0.0821 L atm / mol K

T = 25 °C = 298.15 K

Volume = \frac{P}{nRT}=\frac{1}{2.31X0.0821X298.15}=0.0177L

3 0
3 years ago
If 100% is not passed from one trophic level to the next, where does this energy go?
Sonja [21]
D is the answer to question

6 0
3 years ago
Read 2 more answers
Answer the ones please get right
Natali [406]

Answer:

Hope this helps!

Explanation:

I would help you, but I won't. Because you take others people points without helping them and but random words. So, since you are doing that I won't be helping you <3. Thanks for the points idiot.

6 0
3 years ago
A storm is
skad [1K]

Answer:

c. Boundary where air masses meet and cold air rises above warm air.

Explanation:

5 0
3 years ago
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