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3 years ago

1.Where do the genes that determine an individual's traits come from?

Chemistry

2 answers:

daser333 [38]3 years ago

7 0

Answer:

1) C. Parents pass their genes down to their offspring.

2) A. Genes directly lead to traits

For 2, it could be D but I think it is describing DNA.

stich3 [128]3 years ago

6 0

Answer:

1. C

2. D

Explanation:

Parents pass down genes to there kids. They can pass down certain ones, like a gene for red hair.

Not every gene you get is instantly going to happen, if you get one brown hair gene and one red hair gene, you are going to have brown hair since it is a dominant trait.

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Apart from cases of nuclear processes (including fission), elements cannot be broken down to form other substances.

Shtirlitz [24]

Explanation:

Element is ur answer

hope it helps u

plz mark as brainlist

7 0

3 years ago

A scientist put red blood cells in water that contained salt. Over time, the red blood cells burst. What is most likely true?

Tamiku [17]

Answer: There was a lower concentration of salt in the water than in the cells.

Explanation:

Osmosis is a process in which the solvent flow from a solution of low concentration to a solution of high concentration through a semi-permeable membrane.

When the red blood cells are put in water that contained salt and the red blood cells burst after some time.

This means the solvent has moved from outside to inside the cell and this is possible only when the concentration of solute is high inside the cell than outside. That means the solution has low concentration of solute as compared to the cell and was a hypotonic solution.

7 0

3 years ago

Read 2 more answers

How many grams of aluminum are required to react with 35 mL of 2.0 M hydrochloric acid, HCl?__ HCl + __ Al --> __ AlCl3 + __

kiruha [24]

Answer:

0.6258 g

Explanation:

To determine the number grams of aluminum in the above reaction;

determine the number of moles of HCl
determine the mole ratio,
use the mole ratio to calculate the number of moles of aluminum.
use RFM of Aluminum to determine the grams required.

Moles of HCl

35 mL of 2.0 M HCl

2 moles of HCl is contained in 1000 mL

x moles of HCl is contained in 35 mL

$x \: mol \: = \: \frac{2 \: \times \: 35}{1000} \\ = 0.07 \: moles \:$

We have 0.07 moles of HCl.

Mole ratio

Balanced equation

6HCl(aq) + 2Al(s) --> 2AlCl3(aq) + 3H2(g)

Hence mole ratio = 6 : 2 (HCl : Al

but moles of HCl is 0.07, therefore the moles of Al;

$= \frac{2}{6} \times 0.07 \\ \: = 0.0233333 \: moles$

Therefore we have 0.0233333 moles of aluminum.

Grams of Aluminum

We use the formula;

$grams \: = moles \: \times \: rfm$

The RFM (Relative formula mass) of aluminum is 26.982g/mol.

Substitute values into the formula;

$= 0.0233333 \: moles \: \times \: 26.982 \: \frac{g}{mol} \\ = 0.625799 \: grams$

The number of grams of aluminum required to react with HCl is 0.6258 g.

3 0

2 years ago

If the pOH of vinegar is 9.45, what is its [OH− ]?

goldfiish [28.3K]

3.55 × 10n M n = -10

6 0

4 years ago

Read 2 more answers

Why are some substances not able to dissolve in water?

Gemiola [76]

Water is a polar molecule. If a solute dissolved in water is polar molecule, it will dissolve in water. If a solute dissolved in water is non-polar like oil it will not dissolve in water. Polar dissolves in polar.

5 0

3 years ago