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2 years ago

Binary Covalent (molecular) Compounds

Chemistry

1 answer:

prisoha [69]2 years ago

5 0

Answer:

why is ur name different sexxxy............................................................

Explanation:

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Describe three findings of the Human Genome Project Write it in your own words

nata0808 [166]

Answer:

The biggest known human gene, is made up of about 2.4 million bases. The Human Genome Project also gave us more detailed information about chromosomes. It turns out that chromosome 1 contains the most genes, while the Y chromosome has the fewest.

Explanation:

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3 years ago

Use the mole concept to calculate the number of atoms that are in a 1.75-mol sample of CHCl3.

Fiesta28 [93]

This is how I got to that answer. Since we don't know how many atoms there are in a mole, we use the number 6.02 x 10^-23. Now, just plug in what you have in the equation:

1.75 moles ChCl3 x (6.02 x 10 ^-23) / 1 mole = 1.0535 x 10^-22 atoms.

6 0

3 years ago

In principle, the equilibrium in the dehydration of an alcohol could be shifted to the right be removal of water. Why is this ta

Trava [24]

Answer:

See explanation

Explanation:

In this case, we have to remember that if we want to remove water from the reaction vessel we have to heat the vessel. So, we can convert the liquid water into gas water and we can remove it from the vessel. In this case, the products of dehydration for both molecules are (E)-4-methylpent-2-ene and cyclohexene with boiling points of 59.2 ºC and 89 ºC respectively. The boiling point of water is 100 ºC, therefore if we heat the vessel the products and water would leave the system, and the products would be lost.

See figure 1

I hope it helps!

3 0

3 years ago

In examining several amino acids, you want to identify the feature or features that differentiate one amino acid from another. W

sergiy2304 [10]

Your answer is C
amino acids are created by a bond of two carbon atoms and each carbon is part of a different group, one negative and one positive. when the chemical reactions occurs, it creates the several diff amino acids

4 0

3 years ago

Read 2 more answers

HELP PLZ ITS A TEST.

tensa zangetsu [6.8K]

Answer:

The answer to your question is below

Explanation:

1 ) Which of the following is a chemical property.

A. Ability to become magnetic this is wrong, it's a physical property

B. Ability to conduct electricity this is wrong, it's a physical property

C. Ability to conduct heat this is wrong, it's a physical property

D. Ability to react with acid This is the right answer

2 ) You heat two substances, A and B. Both substances change color. When cooled, substance B returns to its original color, but substance A does not. What most likely happened?.

A. Physical change occurred in both substances This is wrong, a physial change only happens in substance B

B. A physical change occurred in substance A, and a chemical change occured in substance B. This is wrong, a physical change occurred in substance B and a chemical change occurred in substance A.

C. A chemical change occurred in substance A, and a physical change occurred in substance B. This is the right answer is exactly what happens

D. A chemical change occurred in both substances This answer is wrong.

3 ) how many grams are in 2.5 pound sample? Express your answer in scientific notation with three significant figures. ( 1 pound= 453.592 grams).

Rule of three

1 pound ------------------- 453.592 g

2.5 pounds --------------- x

x = 2.5(453.592)/1

x = 1133.98 g = 1.13 x 10³ g letter D

7 0

2 years ago

Read 2 more answers