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MariettaO [177]
3 years ago
11

The true statement concerning the atomic nucleus is:

Chemistry
1 answer:
zmey [24]3 years ago
5 0

Answer:

1. It contains protons,neutrons and electrons which is a true statement for atomic nucleus.

We can also determine number of valence electrons through atomic number by its electronic configuration. (K,L,M.... Shells)

Explanation:

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Sulfur dioxide So2 is present in our atmosphere and is used as a preservative in foods. Is it possible to use the common charges
telo118 [61]

Answer:

Your question is not interpreted very well, but as regards what is observed, SO2 is not the formula for sulfur oxide, the formula for sulfur oxide is SO since the valence used in sulfur would be +2 and oxygen -2 therefore the sum of these valences would be equal to zero, therefore it would be the correct thing considering the true equation as SO

Explanation:

There are also sulfur dioxide, or sulfur trioxide, which is usually used in the formation of tertiary salts such as copper sulfate.

sulfur trioxide and sulfur dioxide are synonymous with sulfate or sulphite

7 0
3 years ago
The carbon-carbon double bond in ethene is ________ and ________ than the carbon-carbon triple bond in ethyne.
lbvjy [14]

Answer:

weaker and longer

Explanation:

Since there are 3 bonds in ethyne in comparision with the 2 bonds of ethyne between carbon atoms, they are attracted more to each other → the bond gets shorter . And since there are one more bond that supports the union → the bond gets stronger

thus the carbon-carbon double bond in ethene is weaker and longer than the carbon-carbon triple bond in ethyne

3 0
3 years ago
What is speed? If you walk 3 kilometers in 30 minutes, what is your average speed in kilometers per hour? Compare and contrast i
Mrrafil [7]

Answer:

See explanation

Explanation:

distance = 3 kilometres

time = 30 minutes or 0.5 hours

speed = distance/time = 3/0.5 = 6 Kmhr-1

Average speed is given by total distance covered divided by the total time taken while the instantaneous speed is the speed of an object at a particular instant or moment in time. Average speed refers to the whole journey while instantaneous speed refers to a particular point or instant in the journey.

distance= x

time = 3 hours

speed = 50 miles per hour

speed = distance/time

distance = speed * time

distance = 3 * 50

distance = 150 miles

3 0
3 years ago
Explain the nucleus, electrons, protons, and neutrons of an atom.
kolezko [41]

Answer: I learned about this in school

Explanation:

Its very easy

8 0
3 years ago
Read 2 more answers
If 4.55 mol of calcium carbide (CaC2) reacts with an excess of water, how many moles of acetylene (C2H2), a gas used in welding,
Rina8888 [55]

Answer:

4.55 mol of C₂H₂

Explanation:

Let's verify the reaction:

CaC₂   +    2H₂O   →   C₂H₂   +  Ca(OH)₂

Ratio is 1:1, so 1 mol of calcium carbide will produce 1 mol of acetylene.

4.55 mol of CaC₂ will make the same amount of C₂H₂

3 0
3 years ago
Read 2 more answers
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