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Orlov [11]
3 years ago
6

A bond formed when atoms share electrons is a(n) __________.

Chemistry
1 answer:
Amiraneli [1.4K]3 years ago
8 0

Answer:

I think it is a covalent bon

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(01.01 MC) Which of the following could be considered a scientific statement?
Travka [436]

The correct answer is option C, that is, it appears that ants live in colonies.

The statement, that is, pizza is the best-tasting food on Earth is false, as it cannot be tested. The statement, that is, I believe that there is life on other planets is not a scientific statement, as it is just a belief. The statement, that is, I think nuclear energy is bad is also not a scientific statement as it is just an opinion.  

The statement, that is, it appears that ants live in colonies is a scientific statement as one can observe and test this.  

5 0
3 years ago
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How does the law of conservation of mass apply to this reaction C2H4 + O2 > 2H2O + 2CO2
AlexFokin [52]
It shows mass is not created nor lost but re arranged
4 0
3 years ago
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13. An atom has a mass number of 12 and an atomic number of 7. How many neutrons does it
zheka24 [161]

Answer:

5

Explanation:

mass number=no of protons +no of neutron

mass number-atomic number=no of neutron

12-7=5

4 0
3 years ago
Please help me i would greatly appreciate it.. 50 points and will mark brainliest
Nikitich [7]

Answer:

368.92g

Explanation:

Firstly, let's balance the equation which is

2NO + O₂ ---> 2NO₂

Starting with 8.02 mol of NO let's calculate the moles of oxygen which is in a 2 : 1 molar ratio

2NO + O₂

2 : 1

8.02 mol : x mol

Moles of O₂ = 8.02 ÷ 2 = 4.01 mol

Doing the same thing for 18.75 mol of O₂ to calculate the number of moles of NO

2NO + O₂

2 : 1

x mol : 18.75 mol

Moles of NO = 18.75 × 2 = 37.5 however we are told we have 8.02 moles of NO, so we are unable to use 18.75 mol of O₂

Using 8.02 mol of NO to figure out the number of moles of NO₂ :

2NO : 2NO₂

They have the same molar ratio of 2 : 2, so the number of moles is 8.02

Using formula moles = mass / Molar mass

Rearranging to find mass = moles × molar mass

Molar mass of NO₂ = 14 + 16 + 16 = 46

Mass = 46 × 8.02 = 368.92g

5 0
2 years ago
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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

3 0
3 years ago
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