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Elena-2011 [213]
3 years ago
12

What did I do wrong?

Chemistry
1 answer:
sladkih [1.3K]3 years ago
4 0

Answer: I think you did nothing wrong

Explanation: I think you did nothing wrong

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Why is the Universal Law of Gravitation is a scientific Law and not a theory?
scoundrel [369]
This is a law because it describes the force but makes not attempt to explain how the force works. A theory is an explanation of a natural phenomenon. Einstein's General Theory of Relativity explains how gravity works by describing gravity as the effect of curvature of four dimensional spacetime.
5 0
2 years ago
Which of the following is a characteristic property of noble gases? A. They only react with each other B. They do not react chem
tresset_1 [31]

Answer:

B.They do not react chemically

Explanation:

This is because all noble gases haves full outer shell therefore they don’t participate in bonding.They are referred to as inert which means unreactive.

8 0
3 years ago
2. How many moles are in 8.30 x 1023 molecules of H2O?
daser333 [38]

Answer:

<h2>1.38 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L} \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{8.30 \times  {10}^{23} }{6.02 \times  {10}^{23} }  =  \frac{8.30}{6.02}  \\  = 1.3787 37...

We have the final answer as

<h3>1.38 moles</h3>

Hope this helps you

8 0
3 years ago
Now molecules: ____ molecules of H2 + ____ molecules of O2 → ____molecules of H2O
Valentin [98]

Answer:

4 H2 + 1 O2 = 2 H2O

6 0
3 years ago
Many biochemical processes are described as coupled reactions. which of the following statements are true? 1 the first step is e
Romashka-Z-Leto [24]
90 feet from home plate to the second base
6 0
3 years ago
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