Which element has the greatest second ionisation energy? A Ne B Na C Mg D Al

Answers

Answer 1

Answer:

Answer:Na

Explanation:

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Which of the following was a major contribution to chemistry by Antoine Lavoisier

Answers

Antoine Lavoisier proved that oxygen is required for material to burn. Without oxygen, the fire goes out which is easily testable.

What is true regarding methane and ammonia?

Answers

Methane has no unbonded electron pairs to interact with the hydrogen; ammonia does.

A typical neon light contains neon gas mixed with argon gas. If the total pressure of the mixture is 1.63 atm and the partial pressure of the neon is 0.71
atm. What is the partial pressure (atm) of argon?

Answers

the partial pressure of argon is:

1.63-0.71= 0.92 atm

1.63 atm - 0.71 atm = 0.92 atm

H-H-C=C-H-H + Br—Br —> H-H-Br- C-C-H-Br-H

Answers

Answer:

Complexity.

Explanation:

Okay, I am NOT explaining this whole thing, but simply, C2n product.

Don't ask. Just don't.

What is the volume of 70.0 g of ether if the density of isether 0.70 g/mL

Answers

D = m / V

0.70 g/mL = 70.0 g / V

V = 70.0 / 0.70

V = 100 mL

hope this helps!

A reaction that occurs when the reactants are simply put together isA. automatic.
B. exothermic.
C. spontaneous.
D. endothermic.

Answers

The answer is C. spontaneous. Spontaneous reactions occur without being driven by an outside force.
Hope that helped you.

C. spontaneous would be ur answer!

Hope I helped:P