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3 years ago

9

Chromosomes _____. (Choose all that apply)

2 answers:

Kruka [31]3 years ago

7 0

Answer:

1.) Are tightly coiled bundles of DNA

2.) Carry many genes

3.) Are found inside the nucleus of eukaryote

4.) Can be used to diagnose genetic disorders

Explanation:

devlian [24]3 years ago

5 0

1 , 2, 3, & 4
Are the answers

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How did the gold foil experiment lead to the discovery of the nucleus?

makvit [3.9K]

Answer:

Rutherford established the nuclear theory of the atom with his gold-foil experiment. When he shot a beam of alpha particles at a sheet of gold foil, a few of the particles were deflected. He concluded that a tiny, dense nucleus was causing the deflections.

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3 years ago

What is an example of a neutral ion.

VARVARA [1.3K]

A neural sodium ion.

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3 years ago

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3 years ago

Read 2 more answers

*multiple choice*

galben [10]

1.95 or 2 is the molarity of a 45.3g sample of KNO3 (101g) dissolved in enough water to make a 0.225L solution.

The correct answer is option b

Explanation:

Data given:

mass of KN $O_{3}$ = 45.3 grams

volume = 0.225 litre

molarity =?

atomic mass of KNO3 = 101 grams/mole

molarity is calculated by using the formula:

molarity = $\frac{number of moles}{volume of the solution}$

first the number of moles present in the given mass is calculated as:

number of moles = $\frac{mass}{atomic mass of 1 mole}$

number of moles = $\frac{45.3}{101}$

0.44 moles of KNO3

Putting the values in the equation of molarity:

molarity = $\frac{0.44}{0.225}$

molarity = 1.95

It can be taken as 2.

The molarity of the potassium nitrate solution is 2.

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3 years ago

1. What is the Charlotte?<br> A. A train<br> B. A car<br> D. An airplane<br> C. A ship

dybincka [34]

Answer:

B is the Charlotte

Explanation:

it is Charlotte because it has 4 wheels

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3 years ago