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Vaselesa [24]
2 years ago
11

Can anyone check my work and see if it is correct? If not, may someone help me?

Chemistry
1 answer:
shusha [124]2 years ago
6 0
It looks all correct to me, great job!
You might be interested in
Which sublevels hold valence electrons?
pogonyaev

Answer:

The Periodic Table can be divided into s, d, p, and f sublevel blocks. For elements in the s sublevel block, all valence electrons are found in s orbitals. For elements in the p sublevel block, the highest energy valence electrons are found in p orbitals.

Explanation:

8 0
3 years ago
How does a mixture of benzoic acid and benzaldehyde can be isolated separately by extractions? ​
Vilka [71]

Answer:

Dissolve benxioc acid and benzaldehyde in organic solvent. The two compounds are not miscible.with water. Put the two in separating funnel. Then use aqueous sodium bicarbonate to extract. Benzioc acid will be in aqueous layer as benzioate ion. Benzaldehyde remain insoluble and can be isolated.

Explanation:

Extractions are techniques use to separate desired compounds when mixed together. The mixture is brought in contact with solvent in which the sites substance is soluble and other is insoluble. Extractions use imissicible stages to separate substance from another.

6 0
3 years ago
PLEASE EXPLAIN I KNOW THE ANSWER I NEED AN EXPLAINATION
BaLLatris [955]

From the graph shown, Y2 = N2, X2 = O2, Z2 = H2.

When atoms of elements are at a large distance from each other, the potential energy of the system is high. However, as the atoms approach each other, the potential energy of the system decreases steadily. The closer the atoms come to each other, the lower the potential energy. This implies that potential energy is proportional to bond length.

Since N2 has a shorter bond length and higher energy, Y2 must be N2. The bond energy of hydrogen is small hence H2 must be X2. The bond energy of a double bond is intermediate between that of a single and triple bond hence Z2 must be O2.

Learn more: brainly.com/question/24857760

6 0
2 years ago
There are two reactants
Xelga [282]

Answer:

13g

Explanation:

The law of conversation of matter tells us that in a chemical reaction, matter is never created or destroyed, it's simply converted from one form to another. So the mass of reactants should always equal the mass of the products in a chemical reaction.

Therefore, if the total mass of the products is 30g, that means that the reactants have a mass of 17g + the other reactant to = 30g.

30g - 17g = 13g

4 0
2 years ago
What is the formula used to calculate heat of fusion?
chubhunter [2.5K]

Answer:

The formula used to calculate heat of fusion:

q = m·ΔH f

6 0
3 years ago
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