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3 years ago

This is a random error/change in the DNA sequence. These may be inherited or occur in cells during the lifetime of the organism.

Chemistry

2 answers:

netineya [11]3 years ago

8 0

Answer:

Mutation

Explanation:

dusya [7]3 years ago

6 0

This is the definition of a DNA mutation.

Depending on which part of the genome is affected, the consequences of a mutation may vary. A mutation is said to be hereditary if the mutated genetic sequence is transmitted to the next generation (see germinal mutations). It is one of the elements of biodiversity and one of the many factors that may be involved in the evolution of the species.

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What makes your pulse? Explain

Serga [27]

Blood flowing into and out your heart makes your pulse

6 0

2 years ago

Natural gas is almost entirely methane. A container with a volume of 2.65L holds 0.120mol of methane. What will the volume be if

mrs_skeptik [129]

The final volume of the methane gas in the container is 6.67 L.

The given parameters;

initial volume of gas in the container, V₁ = 2.65 L
initial number of moles of gas, n₁ = 0.12 mol
additional concentration, n = 0.182 mol

The total number of moles of gas in the container is calculated as follows;

$n_t = 0.12 + 0.182 = 0.302 \ mol$

The final volume of gas in the container is calculated as follows;

$PV = nRT\\\\\frac{V}{n} = \frac{RT}{P} \\\\\frac{V_1}{n_1} = \frac{V_2}{n_2} \\\\V_2 = \frac{V_1 n_2}{n_1} \\\\V_2 = \frac{2.65 \times 0.302}{0.12} \\\\V_2 = 6.67 \ L$

Thus, the final volume of the methane gas in the container is 6.67 L.

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5 0

2 years ago

How many moles are there in 78.3g of CO2?

oksano4ka [1.4K]

The molar mass of CO2 can be calculated as follows;
CO2 — 12 + (16x2) = 12+ 32 = 44 g
Therefore molar mass of CO2 is 44 g/mol
In 44 g of CO2 there’s 1 mol of CO2
Then 1 g of CO2 there’s 1/44 mol of CO2
Therefore in 78.3 g of CO2 there’s — 1/44 x 78.3 =1.78 mol of CO2

4 0

3 years ago

A student placed a small chip of limestone into a hydrochloric acid solution, and carbon dioxide gas was released. The carbon di

Phoenix [80]

Physical and chemical changes are reversible and nonreversible changes. The release of carbon dioxide gas indicates a chemical change.

<h3>What is a chemical change?</h3>

A chemical change is a change in which a new substance is produced when the reactants react in the reaction mixture. The chemical produced cannot be reversed back to the reactants and hence, it is nonreversible.

The release of carbon dioxide is a chemical change as limestone and hydrochloric acid react with each other chemically and as a result, a new substance was formed.

Therefore, the production of carbon dioxide indicates a chemical change.

Learn more about chemical change here:

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5 0

1 year ago

Fill in the blanks below using vocabulary terms-reactants, products, limiting reactant, excess reactant.

slamgirl [31]

Answer:

The vocabulary terms are in the correct order.

Explanation:

The substances that undergo chang are called reactants. They are what create the products. Reactants are on the left side of the equation while the products are on the right side of the equation. The new substances are called products. In other words, what is produced? The products are produced. The reactant that will be used up first is called a limiting reactant. Why? Because it is what limits the reaction. It determines how much products can be made. The reactant that is left over then, is called the excess reactant. That is what is left in excess and does not determine how much product is made.

7 0

2 years ago