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1 year ago

What is the albedo affect

Chemistry

2 answers:

oksano4ka [1.4K]1 year ago

8 0

Answer:

Albedo is an expression of the ability of surfaces to reflect sunlight

Explanation:

Sati [7]1 year ago

4 0

The albedo effect on land. Albedo is an expression of the ability of surfaces to reflect sunlight (heat from the sun)

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Calculate the number of moles of C2H6 in 3.97×1023 molecules of C2H6.

Aleksandr-060686 [28]

3.97×1023 molecules C2H6 1 mol C2H6

------------------------------------------ x ------------------------------------ = 0.66 mol C2H6

6.022 x 1023 molec. C2H6

6 0

3 years ago

What chemical change causes cake to rise?

maks197457 [2]

Answer:

Sodium bicarbonate (NaHCO3)

Explanation:

which is also called baking soda is added during baking of a cake. It reacts with water that is added in the dough and produces carbon dioxide gas, which expands on heating and makes the cake fluffy. Thus, this is a chemical change that causes cake to rise.

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3 years ago

Which is untrue about covalent compounds?

scoundrel [369]

The untrue statement is that they high melting points.

The covalent compounds are the compounds exhibiting strong intra-molecular bonds. This is due to the tightness of the atoms within the covalent molecules. The force of attraction between the individual molecules in a covalent compound seems to be weak. The covalent compounds exhibit weak intermolecular forces that hold the atoms together due to this they have a low melting point.

3 0

3 years ago

Read 2 more answers

The diameter of a carbon atom is 0.000000000154 m. What is this number expressed in scientific notation?

Viktor [21]

1.54 x 10^-10 (ten to the negative tenth power)

8 0

3 years ago

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Draw a lewis structure for ketene, c2h2o, which has a carbon–carbon double bond

MrMuchimi

Visual representation of covalent bonding indicating the valence shell electrons in the molecule, lines represents the shared pair of electron and pair of electrons that are not involved in bonding are represented as dots(lone pairs) are known as Lewis structures.

Compound formation takes place in order to complete the octet of each element that is according to octet rule, each atom forms bond with other atom in order to complete their octet that is to get eight electrons in its valence shell and attain stability.

An organic compound of the form $R^{'}R^{''}C=C=O$ is known as ketene.

The given ketene is $C_2H_2O$ .

The number of valence electron of:

$C = 4$

$H = 1$

$O = 6$

The number of valence electrons in $C_2H_2O$ = $2\times 4+2\times 1+1\times 6 =16$

2 electrons are involved in each single bond between carbon and hydrogen and 4 electrons are involved in each double bond formed between carbon-carbon and carbon-oxygen. Hence, the total number of electrons involved in bond formation are 12 and rest 2 pair of electrons are present on oxygen as lone pair of electrons.

Therefore, the attached image is the Lewis structure of $C_2H_2O$ .

8 0

3 years ago