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Anon25 [30]
2 years ago
10

What is the average atomic mass of element X:

Chemistry
1 answer:
Fiesta28 [93]2 years ago
4 0

The average atomic mass of element X is 10.025 amu

The average atomic mass of element X = atomic mass of 10 isotope × relative abundance of 10 isotope + atomic mass of 11 isotope × relative abundance of 11 isotope + atomic mass of 12 isotope × relative abundance of 12 isotope

= 10 × 98% + 11 × 1.5 % + 12 × 0.5 %

= 10 × 0.98 + 11 × 0.015 + 12 × 0.005

= 9.8 + 0.165 + 0.06

= 10.025 amu

So, the average atomic mass of element X is 10.025 amu

Learn more about average atomic mass here:

brainly.com/question/13299770

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Goshia [24]

Answer: it started too rot over time mold over time and decay and if you cooked a apple it would melt like ice cream cause of the heat waves and if the apple is surrounded by air i think what would happen it would still rot I guess but i wouldnt know for sure cause things with air take time too rot and things with air rot faster and slicing the apple into more pieces would make it decay or rot or mold faster cause its open and accepting everything it sees like bacteria bugs all that

Explanation: like the longer a apple is left half open it starts too rot then mold over time getting all bad and not good too eat or decay

read it all the stuff is in there i think

8 0
2 years ago
Typically if oxygen has a formal negative charge, it is participating in ____ covalent bond(s). Report your answer as a whole nu
ZanzabumX [31]

Oxygen is participating in non-polar covalent bond(s)

Oxygen forms 2 covalent bond.

This is because oxygen atoms have 6 valence electrons. This means that it has 2 lone pairs and 2 unpaired electrons that are shared in order to achieve octet configuration.

In this chemistry, the 2 lone pairs on the oxygen are not shared with any other atoms. Instead; they are assigned to the oxygen atom. The formal charge on the oxygen atom is zero. Oxygen's atomic number is 8 and is equal to the sum of the number of its valence and inner shell electrons.

<h3>What is non-polar covalent bonding?</h3>

Nonpolar covalent bonding is a kind of covalent bond in which the bonding electrons are shared equally between the two atoms.

Learn more about non-polar covalent bonding:

brainly.com/question/26056508

8 0
2 years ago
Define physical properties, and give two types of physical properties in your answer. Thx so much!
Elza [17]

Answer:

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6 0
2 years ago
Read 2 more answers
Consider the following reaction:CuS(s) + O2(g) ↔ Cu(s) + SO2(g)A reaction mixture initially contains 2.9 M O2. Determine the equ
Leni [432]

This reaction contains pure solids which are not considered when writing out equilibrium constant expressions.

O2...........SO2

I 2.9...........0

C -x.......... +x

E 2.9-x........ x

Q=0/2.9 = 0 ---->Q<K Reaction will go to the right

Since the coefficients are all 1, I won't bother putting in the exponents.

k=B/A

1.5= x / (2.9-x)

4.35 - 1.5x = x

2.5x = 4.35

x= 1.74

plug back in ice chart

2.9 - 1.74

=1.16

=1.2 ANSWER

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3 years ago
How many molecules of C6H6O are there in 1.35 moles of lactic acid
gizmo_the_mogwai [7]

Answer:

4re3

Explanation:

6 0
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