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Dafna11 [192]
3 years ago
12

What is the pH of a 1.0 x 102 M solution of HNO,?

Chemistry
1 answer:
MAXImum [283]3 years ago
6 0

1.0 times 102M is 100M

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1.00176 x 103<br> Scientific notation
Ber [7]

Answer:

1.0318128 × 10^2

Explanation:

7 0
3 years ago
How many neon atoms are contained in (7.27x10^2) grams of neon?
statuscvo [17]

Answer: 2.19x10^25 atoms

Explanation:

Molar Mass of Neon = 20g/mol

1mole(20g) of Neon contains 6.02x10^23 atoms.

Therefore, 7.27x10^2g of Neon will contain x atoms i.e

X atoms = (7.27x10^2x6.02x10^23)/20 = 2.19x10^25 atoms

4 0
3 years ago
Consider the energy transfers and transformations that occur when a person rides a bicycle. Describe thi
cupoosta [38]

Answer:

1.B

2.A

3.B

Explanation:

7 0
2 years ago
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An element that has 2 core electrons and 3 valence electrons
gavmur [86]

Answer:

Boron

Explanation:

You can find this by looking at the number of protons in Boron, 5.

Then calculate how many electrons you are given, in this case the 2 core plus the 3 valence equal 5 total electrons

Neutral elements have the same number of protons and electrons, so your answer would be the element with 5 electrons, Boron.

You can also know this by using electron configuration. Since you kow there are 5 electrons then you can use EC to find out where your element is. In this case it is: 1s2 2s2 2p1

6 0
3 years ago
Calculate the percent water in each of the following hydrates:
koban [17]
A) 40.5%
B) 44%
C) 28.9%
8 0
3 years ago
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