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murzikaleks [220]
3 years ago
13

How many molecules are in 15.0 g of oxygen gas (O2)?

Chemistry
1 answer:
frosja888 [35]3 years ago
3 0

Answer:

2.82*10^23

Explanation:

please see attached for work!

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Which equation correctly relates the heat of reaction to the standard heats of formation?
VARVARA [1.3K]

Answer:

D

Explanation:

∆H° = ∆Hf ° (products) – ∆Hf ° (reactants)

4 0
3 years ago
What is the frequency of a wave that has 3 waves every five seconds?
Dmitry [639]

Answer:

Frequency, f = 0.6 Hz

Explanation:

We have,

Number of waves passing through a point are 3

Time for which the waves are passing is 5 seconds

It is required to find the frequency of a wave. The frequency of a wave is defined as the no of waves per unit time. So,

f=\dfrac{n}{t}\\\\f=\dfrac{3}{5}\\\\f=0.6\ Hz

So, the frequency of a wave is 0.6 Hz.

7 0
4 years ago
Name of this product
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Answer:

Explanation:

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3 years ago
Why aren’t two hydrogen atoms bonded together considered a compound?
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Answer:

A compound by definition contains at least 2 different kinds of atoms. A Hydrogen molecule contains only one kind of atom, 2 hydrogen atoms

4 0
3 years ago
An atom can be called a particle, but a molecule is never called a particle.
mr_godi [17]

Answer: um is this a question or are you just telling people

Explanation:

8 0
4 years ago
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