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Ad libitum [116K]
3 years ago
5

Which set contains no ionic species?

Chemistry
1 answer:
SVEN [57.7K]3 years ago
7 0
The awnser should be A
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PLEASE HELP!
Anon25 [30]

Answer:

C. Mole

Explanation:

Chemical formula deals with mole number

4 0
2 years ago
Please help...awarding brainliest if correct and lots of points.
abruzzese [7]

Silver chloride produced : = 46.149 g

Limiting reagent : CuCl2

Excess remains := 3.74 g

<h3>Further explanation</h3>

Reaction

silver nitrate + copper(II) chloride ⇒ silver chloride + copper(II) nitrate

Required

silver chloride produced

limiting reagent

excess remains

Solution

Balanced equation

2AgNO3 (aq) + CuCl2 (s) → 2AgCl(s) + Cu(NO3)2(aq)

mol AgNO3 :

= 58.5 : 169,87 g/mol

= 0.344

mol CuCl2 :

=21.7 : 134,45 g/mol

= 0.161

mol ratio : coefficient of AgNO3 : CuCl2 :

= 0.344/2 : 0.161/1

= 0.172 : 0.161

CuCl2  as a limiting reagent

mol AgCl :

= 2/1 x 0.161

= 0.322

Mass AgCl :

= 0.322 x 143,32 g/mol

= 46.149 g

mol remains(unreacted) for AgNO3 :

= 0.344-(2/1 x 0.161)

= 0.022

mass AgNO3 remains :

= 0.022 x 169,87 g/mol

= 3.74 g

8 0
2 years ago
Solution A is 100 times as acidic as solution B. What is the difference in pH values of solution A and solution B
devlian [24]

Answer:

The difference is 2 pH units.

Explanation:

Let's give an arbitrary value to the H⁺ concentration of solution A, [H⁺]ₐ:

  • [H⁺]ₐ = 0.001 M

If that's the case then the pH of solution A would be:

  • pHₐ = -log(0.001) = 3

----

The H⁺ concentration of solution B ( [H⁺]ₓ ) is 100 higher than that, so:

  • [H⁺]ₓ = 0.001 * 100 = 0.1 M

And its pH:

  • pHₓ = -log(0.1) = 1

So the difference in pH values is:

  • pHₐ - pHₓ = 3 - 1 = 2
3 0
3 years ago
A wave has a frequency of 9.76e-18. what is the wavelength?
Burka [1]

Answer:

i think it would be

8.24e.

tell me if I'm right.

3 0
3 years ago
A species is a group of organisms that _____.
Brrunno [24]
Species= <span>A group of similar organisms that can breed and produce fertile offspring.</span>
8 0
3 years ago
Read 2 more answers
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