2 years ago

Which phrase describes a valence electron?(1 point)

Chemistry

2 answers:

liraira [26]2 years ago

3 0

Answer: I THINK C

Explanation: It has a 25% chance of being right so I'd wait if I were you just sayin

yulyashka [42]2 years ago

3 0

Answer:

Hello, the answer would be C. An electron in the outer energy level of an atom.

Hope this helped :P

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AlladinOne [14]

Answer:

Explanation:

question isnt clear

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3 years ago

In the reaction, A → Products, the rate constant is 3.6 × 10−4 s−1. If the initial concentration of A is 0.548 M, what will be t

Arada [10]

Answer:

$\large\boxed{\large\boxed{0.529M}}$

Explanation:

Since the rate constant has units of s⁻¹, you can tell that the order of the reaction is 1.

Hence, the rate law is:

$r=d[A]/dt=-k[A]$

Solving that differential equation yields to the well known equation for the rates of a first order chemical reaction:

$[A]=[A]_0e^{-kt}$

You know [A]₀, k, and t, thus you can calculate [A].

$[A]=0.548M\times e^{-3.6\cdot 10^{-4}/s\times99.2s}$

$[A]=0.529M$

7 0

3 years ago

Flammable materials, like alcohol, should never be

jarptica [38.1K]

Answer:

b.open flame because it is fundamental end of the alcohol mixes in with the flame then it will become a bigger fire

5 0

2 years ago

Why is the Chemical symbol for lead Pb?? ^__^ i HATE the perdiotic** table!!

tatuchka [14]

Cause latin name of Pb is plumbum.
The same K - potassium - latin name is kalium.

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3 years ago

Which of the following is made of matter A. table B. tree C. pencil D. All of the above

dybincka [34]

Answer:

The answer is D) all of the above

Explanation:

This is because if something has mass then it is composed of matter.

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4 0

3 years ago

Read 2 more answers