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madam [21]
2 years ago
14

The electrons of an atom are (2 points)

Chemistry
2 answers:
Oksana_A [137]2 years ago
8 0
Are <span>negatively charged particles that's what it is your welcome:)</span>
pshichka [43]2 years ago
8 0
<span>The electrons of an atom are the negatively charged particles.</span>
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How many kilograms of solvent (water) must 0.71 moles of KI be dissolved in to produce a 1.93 m solution?
GalinKa [24]

Answer: kg= 0.37

Explanation:

Use the molality formula.

M= m/kg

6 0
3 years ago
When equal volumes of 0.5 M HCl and 0.5 M Ca(OH)2 are mixed, the resulting solution is
Mademuasel [1]

The concentration of mixed solution = 0.5 M

<h3> Further explanation </h3>

Given

0.5 M HCl

0.5 M Ca(OH)₂

Required

The concentration

Solution

Molarity from 2 solutions :

Vm Mm = V₁. M₁ + V₂. M₂  

m = mixed solution

V = volume

M = molarity

V = mixed volume  

1 = solution 1

2 = solution 2

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Equal volumes⇒V₁=V₂, and Vm = 2V, then equation becomes :

2V.Mm = V(M₁+M₂)

2V.Mm = V(0.5+0.5)

Mm=0.5 M

8 0
2 years ago
Need help plz help any one
dimulka [17.4K]
Hi!

Composition: the way in which a whole is made up

Hope I helped!
Have a nice day!
6 0
3 years ago
How many molecules are in 3cacl2
Travka [436]

Answer:

The molar mass and molecular weight of 3CaCl2 is 332.952. 

5 0
3 years ago
Rechargeable batteries use a _________________medium to convert electrical current to a form of chemical energy which can be sto
irinina [24]

Rechargeable batteries use a reversible reaction medium to convert electrical current to a form of chemical energy which can be stored for future use.

<h3>What is a rechargeable battery?</h3>

A rechargeable battery is a type of battery that can be charged many times by passing electric current through the cells in a reversible reaction.

<h3>How does recahargeable battery store energy?</h3>

When electrical energy from an outside source is applied to a secondary cell (reachargeable battery), the negative to positive electron flow that occurs during discharge is reversed, and the cell's charge is restored. This process is called reversible reaction.

Thus, rechargeable batteries use a reversible reaction medium to convert electrical current to a form of chemical energy which can be stored for future use.

Learn more about reversible reaction here: brainly.com/question/11412193

7 0
1 year ago
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