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expeople1 [14]
4 years ago
10

Identify the missing coefficient in the following equation:3210

Chemistry
1 answer:
Pie4 years ago
7 0

Answer:

2

Explanation:

In balancing nuclear reactions the mass number and atomic numbers are usually conserved. This implies that from the given equation, the sum of the number of the subscript on the right hand side must be equal to that on the left hand side. This also applies to the superscript:

   For the mass numbers(superscript):

   235 + 1 = 1 + 139 + 95

       236 = 235

This is not balanced

  For the atomic number:

  92 + 0 = 0 + 53 + 39

      92 = 92

This is balanced.

We simply inspect to see how to balance the mass number.

By putting a coefficient of 2 behind the neutron atom, the equation becomes balanced.

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Answer:

A system absorbs more energy than it releases and has a positive AH  

Explanation:

Answer:

Explanation:

Endothermic (endo = into + thermic = heat) means that heat energy is going into a system.

The products will have more energy than the reactants and ΔH will be positive.

A is wrong, because ΔH is positive.

C and D are wrong, because the system absorbs more energy than it releases.

5 0
3 years ago
The three types of intermolecular forces have different strengths. Rank
tigry1 [53]
There are three different types of intermolecular forces in terms of strength. They are (strongest to weakest) hydrogen bonding, dipole-dipole and Van der Waals' forces.
3 0
3 years ago
The actual number of pennies in a jar is 218. You miscounted and came up with 215 pennies. What is your percent error?
Katyanochek1 [597]

Answer:

3%

Explanation:

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6 0
3 years ago
Which of the following processes are spontaneous? I. dissolving more solute in an unsaturated solution II. dissolving more solut
sergiy2304 [10]

Answer:

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Explanation:

A saturated solution is the solution which contains maximum concentration of solute dissolved in solvent. ​

However, if the solution is being provided with energy (heating) , it will dissolve more heat and the solution that cannot even dissolve more solute after heating is super saturated solution.

<u>Both saturated and supersaturated solutions have maximum of their capacity to dissolve the solute and hence further energy requires energy and these processes are non-spontaneous.</u>

<u>An unsaturated solution can dissolve more solute easily and thus is a spontaneous process.</u>

<u></u>

6 0
4 years ago
A) ¿De qué trata el cuento que leíste?<br>​
NISA [10]

No hablo espanol could you put it in English?

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3 years ago
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