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azamat
3 years ago
9

The following statement describes qualitative data: 17 birds drink from the pond over the course of 2 hours

Chemistry
1 answer:
Mariulka [41]3 years ago
7 0

The two types of data are Qualitative and Quantitative data. Qualitative data is the data that cannot be quantified or measured where as quantitative data is quantified that is measured in terms of numbers.

The given statement 17 birds drink from the pond over the course of 2 hours describes the number of birds that drink water over a given amount time. So, it represents quantitative data. Hence the given statement that The following statement describes qualitative data: 17 birds drink from the pond over the course of 2 hours is false.

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A karyotype can be used to determine the number of ____________________ (alleles, chromosomes) in a person’s cells.
Furkat [3]

Answer:

Chromosomes

Explanation:

A karyotype is an individual's collection of chromosomes

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Jayla

5 0
3 years ago
What is the percent composition of calcium fluoride
vladimir1956 [14]

Answer:

78.07

Explanation:

them seperatly is

Calcium Ca 51.333%

Fluorine F 48.667%

8 0
2 years ago
0.25 mol of nitric acid is used to make a 0.10 M nitric acid solution. How many grams of solute was used?
Yanka [14]

Answer:

15.75 grams of HNO3 was used and dissolved in 2.5 liters of solvent, to make a 0.10 M solution

Explanation:

Step 1: Data given

Nitric acid = HNO3

Molar mass of H = 1.01 g/mol

Molar mass of N = 14.0 g/mol

Molar mass O = 16.0 g/mol

Number of moles nitric acid (HNO3) = 0.25 moles

Molairty = 0.10 M

Step 2: Calculate molar mass of nitric acid

Molar mass HNO3 = Molar mass H + molar mass N + molar mass (3*O)

Molar mass HNO3 = 1.01 + 14.0 + 3*16.0

Molar mass HNO3 = 63.01 g/mol

Step 3: Calculate mass of solute use

Mass HNO3 = moles HNO3 * molar mass HNO3

Mass HNO3 = 0.25 moles * 63.01 g/mol

Mass HNO3 = 15.75 grams

15.75 grams of HNO3 was used and dissolved in 2.5 liters of solvent, to make a 0.10 M solution

7 0
3 years ago
All isotopes of a particular element have the same atomic number. how then do the isotopes of a particular element differ?
White raven [17]
They have less or more neutrons. Isotopes have same number of protons but different number of neutrons.
4 0
3 years ago
Read 2 more answers
Which expression is equal to the number of grams in 2.43 kilograms
KiRa [710]
1 kg = 1000g
2.43 kg *1000g/1kg = 2430 g
3 0
3 years ago
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