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liubo4ka [24]
3 years ago
11

9. Calculate the frequency of light with a wavelength = 12 km. (kilo = 10')

Chemistry
1 answer:
Schach [20]3 years ago
4 0
What grade are you in? I just wanna know just to see if I learned about this
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What is the formula for the ionic compound formed between sodium and oxygen?
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Answer:The formula for the compound formed between sodium and oxygen will be Na2O; a ratio of 2 Na atoms for each O atom.

Explanation:

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Please help! If a forensic chemist discovers evidence through examination which would prove a person guilty of a crime, why then
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Explanation: You cannot be convicted of a crime without evidence. You cannot be convicted of a state crime. You cannot be convicted of a federal crime. If there is no evidence against you, under the law, it simply is not possible for the prosecutor's office to obtain a conviction at trial. So, when you do have evidence it is really impossible to not get convicted unless the judge truly believes your side of the story and declares you not guilty.

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7 0
3 years ago
Determine % yield if a student obtains 45 g of product in an experiment and the theoretical amount is determined to be 50 g. *
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Answer:

90%

Explanation:

Percentage yield = ?

Theoretical yield = 50g

Actual yield = 45g

To calculate the percentage yield of a compound, we'll have to use the formula of percentage yield which is the ratio between the actual yield to theoretical multiplied by 100

Percentage yield = (actual yield / theoretical yield) × 100

Percentage yield = (45 / 50) × 100

Percentage yield = 0.9 × 100

Percentage yield = 90%

The percentage yield of the substance is 90%

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3 years ago
Which statements describe the Rutherford atomic model? Check all that apply.
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Answer:

1 and 4

Explanation:

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Two descriptions about physical quantities are given below:
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Quantity A is weight and Quantity B is mass

Explanation: weight has same unit as force. Mass is the quantity of matter present in a body or object

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