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3 years ago

_.

Chemistry

1 answer:

dmitriy555 [2]3 years ago

6 0

Answer:

-. D

6. A

Explanation:

Chromosomes are presented in a genotype. Chromosomes are structures within a cell that contains a person's gene while genotype is an individual collection of genes. Therefore genotype reflect the chromosomes present in cell

6. Genetic diseases differ from other diseases because recurrence risk is predictable since genes are transferred from parent to offspring and therefore the diseases are transferred from parent to offspring

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3) A solution contains 61.3 moles of KC103 in 0.25 L of solution. What is the

marissa [1.9K]

Answer:

The molarity of the solution is 245, 2M.

Explanation:

We calculate the molarity, which is a concentration measure that indicates the moles of solute (in this case KCl03) in 1000ml of solution (1 liter):

0,25 L solution----- 61,3 moles of KCl03

1 L solution----x= (1 L solution x 61,3 moles of KCl03)/0,25 L solution

x=245, 2 moles of KCl03 --> The molarity of the solution is 245, 2M

6 0

3 years ago

I really need help with this question please help me.

oksano4ka [1.4K]

I would say A because it’s the only one that doesn’t conduct electricity. Ionic compounds conduct electricity, and covalent compounds do not.

3 0

3 years ago

Which scenario would result in a population growth of zero? Use this formula: population growth = (birth rate + immigration) – (

swat32

Answer:

12 individuals are born 10 individuals emigrate, 4 individuals die, 14 individuals immigrate, 0 individuals are born

Explanation:

From the formula:

Population growth = (birth rate + immigration) – (death rate + emigration)

= (b + i) - (d + e)

For the first option, b = 12, i = 0, d = 12, e = 12

population growth = (12+0) - (12+12) = -12

For the second option: b = 13, i = 0, d = 3, e = 16

population growth = (13+0) - (3+16) = -6

For the third option: b = 12, i = 20, d = 0, e = 8

population growth = (12+20) - (0+8) = 24

For the last option: b = 0, i = 14, d = 4, e = 10

population growth = (0+14) - (4+10) = 0

Hence, the last option is the correct option.

8 0

3 years ago

Read 2 more answers

An unknown gas effuses 1.66 times more rapidly than CO2. What is the molar mass of the unknown gas, given that the molar mass of

Y_Kistochka [10]

The molar mass is 16.0 grams

4 0

3 years ago

Read 2 more answers

In table below, there are descriptions of an experiment on samples of three different chemical compounds. Decide whether the com

likoan [24]

Answer:

Compound 1 is molecular

Compound 2 is ionic

Compound 3 can't really be decided

Explanation:

A molecular substance does not conduct electricity, has very low melting and boiling points and is held together by very weak intermolecular forces.

An ionic substance conducts electricity in solution or in molten state but never in the pure solid state, has a high melting and boiling point and has a dull appearance most times.

Compounds 1 shows the properties of molecular substances hence it are designated as such.

On the other hand, compound 2 shows the properties of an ionic substance and is also designated as such.

We can't really decide on compound 3 because it shows some properties of ionic substances and some properties of molecular substances.

7 0

3 years ago