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3 years ago

A biologist who is measuring the length of salmon as they travel upstream is collecting qualitative data. True or false ?

2 answers:

4 0

The answer is false because qualitative data is describing something with words and quantitative data is describing something with numbers.

Vladimir [108]3 years ago

3 0

Answer: False

Explanation:

Qualitative data is one which can be observed with our senses such as sight, smell, touch, taste, and hearing. Qualitative observations do not involve any measurement. Example: Colour of an object

Quantitative data is one which involves measurement of data in numbers. Example: speed of an object

As the biologist is measuring the length of salmon as they travel upstream , it measures data in numbers and hence is a quantitative data and not a qualitative data.

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Answer:

electrons

Explanation:

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What is the mass of 1 mole of carbon?

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3 years ago

If you are using 3.00% (mass/mass) hydrogen peroxide solution and you determine that the mass of solution required to reach the

Maurinko [17]

Answer:

0.004522 moles of hydrogen peroxide molecules are present.

Explanation:

Mass by mass percentage of hydrogen peroxide solution = w/w% = 3%

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Mass of the hydrogen peroxide = x

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Moles of hydregn pervade in the solution :

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5 0

3 years ago

Your favorite beach has 42 large sand dunes throughout the course of the year wind erosion destroys eight sand dunes and create

a_sh-v [17]

42- 8 = 34 sand dunes must be the answer

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3 years ago

You are asked to weigh approximately 0. 4g of acetylsalicylic acid to the nearest mg. When you enter the data in grams in your l

krok68 [10]

Number of significant figures will be 1

Given:

weight of acetylsalicylic acid = 0. 4g

To Find:

significant figures

Solution: Significant figures are the digits of value which carry meaning towards the resolution of the measurement. They are also called significant figures in chemistry. All the experimental measurements have some kind of uncertainty associated with them.

When we convert 0.4g acetylsalicylic acid to mg we get value 400mg

when we convert 400mg to gram we get value of 0.4 gram

Since 0 before a decimal is not significant so there is only one significant figure that is 4

Learn more about Significant figure here:

brainly.com/question/24491627

#SPJ4

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2 years ago