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sergeinik [125]
3 years ago
7

When the pH test is done with a yellow litmus paper, it turns blue. This color change indicates that the solution is___

Chemistry
1 answer:
kati45 [8]3 years ago
8 0

Answer:

A basic solution such as hydroxyls

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If the limiting reactant in a chemical reaction is impure, what will happen to the percentage yield of the product?
Elanso [62]

Answer:

it may also become impure,I think.

6 0
2 years ago
If you had 6H2 molecules and 4O2 molecules, how many H2O molecules could you produce?
ZanzabumX [31]

Answer:

6

Explanation:

As , 2H2 + O2 = 2H2O

with 6 H2, 4O2 is excess.

H2O molecules formed = 6

7 0
3 years ago
A student wants to prepare 1.00 L of a 1.00 M solution of NaOH (molar mass 40.00 g/mol). If solid NaOH is available, how would t
Serga [27]

Explanation:

1)

Molarity=\frac{\text{Mass of substance}}{\text{Molar mass of substance}\times \text{Volume of solution(L)}}

Mass of NaOH = m

MOlar mass of NaOH = 40 g/mol

Volume of NaOH solution = 1.00 L

Molarity of the solution= 1.00 M

1.00 M=\frac{m}{40 g/mol\times 1.00 L}

m=1.00 M\times 40 g/mol\times 1.00 L = 40. g

A student can prepare the solution by dissolving the 40. grams of NaOH in is small volume of water and making that whole volume of solution to volume of 1 L.

Upto two significant figures mass should be determined.

2)

M_1V_1=M_2V_2 (dilution equation)

Molarity of the NaOH solution = M_1=2.00 M

Volume of the solution = V_1=?

Molarity of the NaOH solution after dilution = M_2=1.00 M

Volume of NaOH solution after dilution= V_2=1 L

M_1V_1=M_2V_2

V_1=\frac{1.00 M\times 1.00 L}{2.00 M}=0.500 L

A student can prepare NaOH solution of 1.00 M by diluting the 0.500 L of 2.00 M solution of NaOH with water to 1.00 L volume.

Upto three significant figures volume should be determined.

8 0
3 years ago
Which of the following elements belong to the same pair?
butalik [34]

Answer:

B. Na and Li

Both are group I elements.

5 0
3 years ago
[Please see the attatched photo]​
mixer [17]

Answer:

Its C

Explanation:

Got 100% on test edge 2020

5 0
2 years ago
Read 2 more answers
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