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3 years ago

Right answer gets brainlist

Chemistry

1 answer:

Zigmanuir [339]3 years ago

6 0

I am pretty sure this is the answer. Im not 100% sure on C or D because they could be flipped. But I know the electrical charge depends on the protons and there is more of the light colored ones then the dark....
A= The Nucleus
B= Electron
C= Neutrons
D= Protons

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If 550 mL of a 3.50 M KCl solution are set aside and alowed to evaporate unti the

andrezito [222]

1) list givens and convert if necessary

C₁ = 3.50 mol/L

V₁ = 0.550 L

C₂ = ?

V₂ = 0.275 L

2) rearrange formula

$C_{1}V_{1}=C_{2}V_{2}\\\\C_{2}=\frac{C_{1}V_{1}}{V_{2}}$

3) solve

$C_{2}=\frac{(3.50\ mol/L)(0.550\ L)}{(0.275\ L)}$

C₂ = 7.00 mol/L

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3 years ago

Which of the following statements is not true regarding physical properties and changes?

ratelena [41]

I think it is B, but i am not sure

8 0

4 years ago

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A Bronsted-Lowry acid is defined as a substance that ________. A Bronsted-Lowry acid is defined as a substance that ________. in

Anestetic [448]

Answer: A Bronsted-Lowry acid is defined as a substance that acts as a proton donor.

Explanation:

A substance that is able to donate a proton or hydrogen ion to another substance is a Bronsted-Lowry acid.

For example, HCl is a Bronsted-Lowry acid as it dissociates to give a hydrogen ion.

$HCl \rightleftharpoons H^{+} + Cl^{-}$

Thus, we can conclude that a Bronsted-Lowry acid is defined as a substance that acts as a proton donor.

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3 years ago

An ionic compound is typically formed between?

Sedaia [141]

Answer:

Da Answer

Explanation:

Ionic bonds formed through an electrostatic attraction between two oppositely charged ions. Ionic bonds are formed between a cation, which is usually a metal, and an anion, which is usually a nonmetal.

8 0

3 years ago

How much heat is needed to raise the temperature of 7g of water by 19oC?

AlekseyPX

Data:

m = 7 g

ΔT = 19 °C

Cs of water = 1 cal / g °C

Formula Q = m * Cs * ΔT

Solution:

Q = (7 g) * (1 cal / g °C) * ( 19°C) = 133 cal

7 0

4 years ago

Read 2 more answers