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2 years ago

When methane (CH4) combines with oxygen (O2), carbon

Biology

1 answer:

FromTheMoon [43]2 years ago

3 0

Answer:

C. CH4 + 202 – CO2 + 2H20

Explanation:

CH4+O2-CO2+H20

The above equation represents combustion of methane to produce carbon-dioxide and water.

One carbon atom is present on the reactant side as well as on the product side. Four hydrogen atoms are present on the reactant side and two hydrogen atoms on product side. In order to balance this equation, we would multiply water molecule by two. Now there are four atoms of oxygen in the product side but only two on reactant side, so we will multiply oxygen molecule by two on the reactant side. Now the equation is balanced.

The balanced chemical equation is:

CH4+202-CO2+2H2O

This equation obeys the law of conservation of mass as the mass of the reactants is same as that of the products.

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6.(02.01 MC)

Luda [366]

Answer:

Attractive forces between particles.

Explanation:

Solids keep its shape and volume because of strong attractive forces between the particles.

Other options are incorrect:

Because there is no space between solid particles.

The shape of solid does not depend upon type of particles present.

The shape and volume of solids not depend upon the volume and shape of container.

Properties of solids:

Solids have definite volume and shape.

In solids molecules are tightly pack and very close to each other.

Their melting and boiling point are every high.

The densities of solids are also very high as compared to the liquid and gas.

There are very strong inter molecular forces are present between solid molecules.

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4 years ago

A pedigree chart can show a trait that is:

Illusion [34]

It is a dominant and that the allele for nontasting id recessive

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3 years ago

5. Atoms with a(n) blank share electrons.

lyudmila [28]

Answer:

Noor

Explanation:

Noor

3 0

2 years ago

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What is the basic building block of all living things?

alisha [4.7K]

Answer:

<h3> $\huge \boxed{ \mathbb{ \bold{ \purple{ \: cell}}}}$ </h3>

Explanation:

All the living organisms on this Earth are made up of microscopic units called cells. It is basic structural unit for all the organisms. The cells are the building block of all the living organisms. Our body is composed of trillion of cells. They carry out the functional activities of our life. A cell can be defined as a basic , structural and functional unit of life capable of independent existence. The cell was first discovered by Robert Hooke in 1665 AD. As we know that all the living organisms are made up of cells. These cells are developed as a result of a division of pre-existing cells. All the cells are same in chemical composition and metabolic processes. The function of an organism as a whole is the outcome of combined activities and interactions of the constituent cells. The cell is known as the fundamental , structural and functional unit of life.

Hope I helped!

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6 0

3 years ago

All of the following are biotic factors of a pond except

Elenna [48]

A.) Sunlight
It is not a biotic factor. It is an abiotic factor.

Biotic factors include plants, animals , fungi, algae, and bacteria.

Abiotic factors include sunlight, temperature ,moisture ,wind or water currents , soil type, and nutrient availability.

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3 years ago

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