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Varvara68 [4.7K]
2 years ago
6

Can someone please help me thx!!!

Chemistry
1 answer:
Rudik [331]2 years ago
6 0

Answer:

the answer should be A

Explanation:

hope this helps you.

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How is the Delta Hf related to the delta H of <br> a reaction?
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Answer:

n a chemical reaction, delta H represents the sum of the heats of formation, commonly measured in kilojoules per mol (kJ/mol), of the products minus the sum of those of the reactants. The letter H in this form is equal to a thermodynamic quantity called enthalpy, representing the total heat content of a system.

5 0
3 years ago
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What is the name of the compound with the formula NH HCO3 ?
svet-max [94.6K]

Answer:

Acid ammonium carbonate // Ammonium bicarbonate.

Explanation:

Hello, a 4 is missing in the fist H, thus:

NH_4HCO_3

The presence of the hydrogen between the ammonium and the carbonates characterizes the salt as an acid salt, so you could name it as acid ammonium carbonate or ammonium bicarbonate (similar to the sodium bicarbonate which is NaHCO_3).

Best regards.

6 0
3 years ago
Astatine belongs to which element group: nonmetal, halogen, noble gas?
Mkey [24]

Answer:

halogen

Explanation:

It belongs to Group 17 on the periodic table, which is a halogen

8 0
3 years ago
Do protons have attraction for neutrons yes or no
eduard

Answer: Yes, they do.

Explanation: Neutrons and protons are made up of smaller subatomic particles. When neutons and protons get get close to each other they convert particles and bond together. This occurance is called The Strong Force.

4 0
3 years ago
Which of the following pairs of elements is most likely to form an ionic bond? A. nitrogen and oxygen B. aluminum and nitrogen C
krok68 [10]

Answer:

B

Explanation:

When nitrogen and aluminum form an ionic bond, the formula of the ionic compound is AlN. Aluminum forms a cation Al⁺³ and nitrogen forms an anion N⁻³. When each cation of Al⁺³ combines with an anion of N⁻³, AlN or aluminum nitride is formed

\Hope i could help xxxxxxxxxxxxxxxxxxx

6 0
3 years ago
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