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hodyreva [135]
2 years ago
13

Consider the energy transfers and transformations that occur when a person rides a bicycle. Describe thi

Chemistry
2 answers:
Leno4ka [110]2 years ago
8 0

Answer:

b,a,b

Explanation:

cupoosta [38]2 years ago
7 0

Answer:

1.B

2.A

3.B

Explanation:

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What is the formal charge of nitrogen in no2cl
Gre4nikov [31]

Answer:

The formal charge on nitrogen in NO_{2}Cl is +1.

Explanation:

The structure of NO_{2}Cl is as follows.

(In attachment)

Formal\, charge = Valence\, electron - (nonbonding\, electrons + \frac{Bonding\,electrons}{2})

From the structure, Nitrogen has no non bonding electrons. Nitrogen has four bonds and each bond corresponds to 2 electrons. Hence, nitrogen have eight bonding electrons and five valence electrons.

Formal\,charge\,on\,nitrogen = 5-[0+ \frac{8}{2}]= +1

Therefore, The formal charge on nitrogen in NO_{2}Cl is +1.

6 0
3 years ago
A student with an unknown code of Q3A conducts a qualitative analysis of her unknown. Her results indicated the formation of a y
insens350 [35]

Answer:

Grey precipitate implies the presence of silver ions

Yellow precipitate implies the presence of lead II ions

Explanation:

Qualitative analysis provides us a quick method of identifying ions present in a sample by chemical reactions involving simple reagents. Precipitates having a unique colour is formed. The identity of ions in the sample is deduced from the colour of precipitate obtained when particular reagents are added.

In the question, a precipitate containing silver ions upon standing turn into grey colour. Similarly, lead II ions give a yellow precipitate.

6 0
2 years ago
Calculate the number of grams of CH_3COOH in the vinegar.
AysviL [449]
<span>when density in g/ml
9.86ml CH3COOH (X g/1ml) = g
1.049g/ml
9.86ml (1.049g/1ml) = 10.343 g
hope it helps
</span>
6 0
3 years ago
What happens to water during evaporation?
kotegsom [21]
D would be your best bet because evaporation occurs when water is heated, it then vibrates and then magic!
5 0
3 years ago
Read 2 more answers
Ok so the question is Sort the processes based on the type of energy transfer they involve. condensation
Lesechka [4]

Maybe evaporation???????????????

7 0
3 years ago
Read 2 more answers
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