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3 years ago

A student makes several observations about a piece of iron. Which observation describes a chemical property of the iron?

Chemistry

1 answer:

Mama L [17]3 years ago

6 0

Answer:

An example of a chemical property of iron would be that it is capable of combining with oxygen to form iron oxide, or rust.

Explanation:

You have no choice listed, so I provided an example.

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A mixture of hydrogen and oxygen gases has a total pressure of 5.50 atm. What is the partial pressure of the hydrogen if the P(O

Sloan [31]

Answer:

P O 2 = 5.21 atm P C O 2 = 4.79 atm

Explanation:

Hope it helps!

6 0

3 years ago

Match each chemical with the correct use.

serious [3.7K]

1.D 2.C 3.B 4.A is the answer i believe you're looking for.

3 0

3 years ago

Read 2 more answers

the element chlorine is a gas. it's formula is cl2 . how many different masses of the cl2 molecule would you expect to find in a

RSB [31]

Answer:

the answer is 3.33⋅1023 molecules of Cl2. Note that 6.022⋅1023 is also known as Avogadro's number, and it can be referred to as the number of molecules in one mole of that substance. Also, I calculated 70.9 because 35.45 g/mol (the mass of one Chlorine atom) times 2 is 70.9 g/mol (Cl2 has two Chlorine atoms).

Explanation:

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3 years ago

The diagram below represents a beaker of water being heated by a flame. The arrows represent heat

Charra [1.4K]

Answer:

condensation

Explanation:

when heated beaker sed condensation

4 0

3 years ago

draw the lewis structure for CO2, H2CO3, HCO3-, and CO3 2-.Rank these in order of increasing attraction to water molecules. Expl

gavmur [86]

Answer:

The structures are attached in file.

Hydrogen bonding and intermolecular forces is the reason for ranks allotted.

Explanation:

In determining Lewis structure, we calculate the overall number of valence electrons available for bonding. Making carbon (the least electronegative atom) the central atom in the structure, we allocate valence electrons until each atom has achieved stability.

In order of decreasing affinity to water molecules:

$CO_{3}^{2-} > HCO_{3} ^{2-} > H_{2} CO_{3}$

This is due to the fact that the $CO_{3}^{2-}$ will accept protons more readily than the bicarbonate ion, $HCO_{3} ^{2-}$ . Carbonic acid, $H_{2} CO_{3}$ will not accept any more protons, hence it is the least attractive to water molecule, even though soluble.

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3 years ago