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Ray Of Light [21]
3 years ago
10

Use the drop-down menus to label each of the following changes P for physical change and C for the chemical change. The substanc

e changes to a new substance, the original substance can be recovered, the color changes, gas is produced and given off, and the substance changes size, shape, or volume
Chemistry
2 answers:
zhannawk [14.2K]3 years ago
8 0

Answer:c,p,c,c,p

Explanation:

dlinn [17]3 years ago
6 0

Answer:

Chemical, Physical, Chemical, Chemical, Physical!!

Explanation:

I just did it correctly.

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The principle quantum number "n" represents the relative overall energy of each orbital, and the energy of each orbital increases as the distance from the nucleus increases. The sets of orbitals with the same "n" value are often referred to as electron shells or energy levels. 
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Find the molarity of the following solutions: 0.5 moles of sodium chloride is dissolved to make 0.05 liters of solution.
vredina [299]
M(molarity)=moles/volume
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. The empirical formula is the simplest whole number ratio.

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2 years ago
Assume the pH of household bleach is 12. What is the hydronium ion concentration in household bleach? What is it hydroxide ion c
Ostrovityanka [42]

Answer:

[H3O+] = 1.0*10^-12 M

[OH-] = 0.01 M

Explanation:

We can use the following equation to find the hydronium ion concentration.  Plug in the pH and solve for H3O+.

pH = -log[H3O+]

<u>[H3O+] = 1.0*10^-12 M</u>

Now, to find the hydroxide ion concentration we will use the two following equations.

14 = pH + pOH

pOH = -log[OH-]

14 = 12 + pOH

pOH = 2

2 = -log[OH-]

<u>[OH-] = 0.01 M</u>

8 0
3 years ago
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