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vekshin1
3 years ago
15

The table below gives the numbers of protons, electrons, and neutrons in four atoms.

Chemistry
2 answers:
PolarNik [594]3 years ago
4 0

Answer:

Atom 3

Explanation:

Protons have a +1 charge, electrons have a -1 charge, and neutrons have no charge and are therefore neutral. The charges will cancel each other when equal. To determine which atom has the a -1 charge, find the atom that has one more electron than it has protons.

Nana76 [90]3 years ago
4 0

<em>Question:</em>

<u>Based on the table, which atom has a charge of –1?</u>

<em>Answer:</em>

<u>Atom 3</u>

<em>Explanation:</em>

<u>I took the test on Edgenuity (2020) and got it correct. Hope this helps you! :)</u>

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How do chemical and nuclear reactions differ in(c) Effect on rate of higher reactant concentration?
DochEvi [55]

Nuclear reactions involve a change in an atom's nucleus, usually producing a different element. Chemical reactions, on the other hand, involve only a rearrangement of electrons and do not involve changes in the nuclei.

<h3>What affects the rate of nuclear reactions?</h3>

Reactant concentration, the physical state of the reactants, and surface area, temperature, and the presence of a catalyst are the four main factors that affect reaction rate.

<h3>What is the main difference between chemical reactions and nuclear reactions?</h3>

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7 0
1 year ago
Calculate the maximum amount of useful work that can be obtained and comment on the spontaneity for the reaction at 25C :
harkovskaia [24]

Answer:

1.41 *10^{3}  kJ/mol

Explanation:

First, we find in the tables the ΔH of formation of each compound. As you can see in the (image 1)

Then we solve the ecuation for ΔH°reaction

ΔH°reaction=∑ΔH°f(products)−∑ΔH°f(Reactants)

ΔH°reaction= (-2* 393.5 - 2*285.8) - (52.4 + 0) kJ/mol

ΔH°reaction = -1.41 *10^3  kJ/mol

3 0
3 years ago
Mrs.Jacobs dropped an object from 10 meters she knows it did 50 joules of work how much did it weigh?
Alenkasestr [34]
It is 30 hope it help's.
5 0
3 years ago
What does cpd in organic chemistry mean?
makvit [3.9K]
It means <span>a substance formed by chemical union of 2 or more elements or ingredients in definite proportion by weight.</span>
4 0
3 years ago
What is FALSE about nitrogen gas and carbondioxide?
Umnica [9.8K]

Answer:

4

Explanation:

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5 0
3 years ago
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