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olchik [2.2K]
3 years ago
7

PLEASE ANSWER

Chemistry
1 answer:
irga5000 [103]3 years ago
7 0

Answer:

B

Explanation:

machanical waves like sea waves need a medium.

but electromagnetic waves never need a medium

but can also travel through medium

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List at least two chemical reactions that resulted in a white precipitate. For these reactions list the possible chemical name o
Alina [70]
Barium chloride + sodium sulphate --> barium sulphate + sodium chloride
BaCl2 + Na2SO4 ---> BaSO4 + 2 NaCl
The barium sulphate appears as a white precipitate

Silver nitrate +  Sodium chloride ---> Silver Chloride + sodium nitrate
AgNO3 + NaCl ----> AgCl + NaNO3
The silver chloride appears as a white precipitate.

These  are sometimes called double decomposition reactions.
8 0
3 years ago
Which is a property of every mixture?
loris [4]
One substance can be separated from another through physical means
7 0
3 years ago
Read 2 more answers
A ____________ is a physical combination of things that can be separated. mixture compound
Degger [83]

Answer:

mixture

Explanation:

A mixture is something that can be separated, while a compound is something that can be separated (unless by chemicals).

An example of a mixture would be trail mix. You can separate the components without using chemicals.

~theLocoCoco

4 0
4 years ago
Which set of quantum numbers cannot specify an orbital?.
vodomira [7]

Answer: n=2,l=1,ml=1 n=3,l=2,ml=0 n=3,l=3,ml=2 n=4,l=2,ml=0.

Explanation:

hope it helps

5 0
3 years ago
What is the pH of a solution with an H3O+ concentration of 5.67 x 10-4 M?
Valentin [98]

Answer:

<h2>3.25 </h2>

Explanation:

The pH of a solution can be found by using the formula

pH = - log [ { H_3O}^{+}]

From the question we have

ph =  -  log(5.67 \times  {10}^{ - 4} )  \\  = 3.2464

We have the final answer as

<h3>3.25 </h3>

Hope this helps you

3 0
3 years ago
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