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Natali [406]
2 years ago
14

5 points

Chemistry
1 answer:
podryga [215]2 years ago
7 0

Answer:

the answer would be A have good day

Explanation:

pls mark brainliest and 5 stars

<3

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That would be (110/ 325)  * 100

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3 years ago
potassium, k, has an atomic number of 19 and an atomic mass of 39 how many electrons does a neutral atom of K have?
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A neutral atom of potassium has 19 electrons.
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List examples of organisms from the movie that represent each of the six kingdoms. Monera (Archaebacteria/Eubacteria): Protista:
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If 45.0 mL of a 0.0500 M HNO3, 10.0 mL of a 0.0500 M KSCN, and 30.0 mL of a 0.0500 M Fe(NO3)3 are combined, what is the initial
jeka94

Answer:

the  initial concentration of SCN- in the mixture is 0.00588 M

Explanation:

The computation of the initial concentration of the SCN^- in the mixture is as follows:

As we know that

KSCN \rightarrow K^ + SCN^-

As it is mentioned in the question that KSCN is present 10 mL of 0.05 M

So, the total milimoles of SCN^- is

= 10 × 0.05

= 0.5  m moles

The total volume in mixture is

= 45 + 10 + 30

= 85 mL

Now the initial concentration of the SCN^- is

= 0.5 ÷ 85

= 0.00588 M

hence, the  initial concentration of SCN- in the mixture is 0.00588 M

5 0
3 years ago
A 4.5-liter sample of a gas has 0.80 mole of the gas. If 0.35 mole of the gas is added, what is the final volume of the gas? Tem
AVprozaik [17]

Answer:

6.5 liters will be your answer

Explanation:

5 0
3 years ago
Read 2 more answers
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