3 years ago

Hands on mole activity

Chemistry

1 answer:

Amanda [17]3 years ago

4 0

Explanation:

one mole= 6.02x10^23

Everything going from a mole will always be multiplied and everything going into mole will be divided.

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BRAINLIEST ANSWER _ A balloon occupies a volume of 0.93 liters at a pressure of 84.5 kPa. When the balloon is allowed to expand

SVEN [57.7K]

V1 = 2.0 L T1 = 25.0 oC = 298 K V2 = V1T2 = (2.0 L)(244 K) = 1.6 L V2 = ? t1(298 K) T2 = –28.9 oC = 244 K

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3 years ago

Exactly how many -OH groups are found in a 6 carbon alditol?

mr Goodwill [35]

Answer:

The number of OH group found in found in a 6 carbon alditol is 6

Explanation:

The structure of a 6 carbon alditol is shown on the first uploaded image

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3 years ago

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Archy [21]

Answer:

Explanation:

A chemical change is when a new substance is created, which often has its own chemical properties, so A is the correct answer.

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3 years ago

Elements in the periodic table are listed in order of their -----

sattari [20]

Answer:

In numerical order left to right, they are arranged by the number of protons in the nucleus of a single atom of each element

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3 years ago

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Last week you reacted magnesium with a hydrochloric acid aqueous solution and hydrogen gas was produced. Let's say that you coll

miv72 [106K]

Answer:

69.8 kilo Pasacl is the pressure of the hydrogen gas.

Explanation:

$Mg+2HCl\rightarrow MgCl_2+H_2$

Pressure at which hydrogen gas collected = p = 101.2 kilo Pascals

Vapor pressure water = $p^o$ = 31.4 kilo Pascals

The pressure of hydrogen gas = P

The pressure at which gas was collected was sum of vapor pressure of water and hydrogen gas.

$p=P+p^o$

$P =p-p^o=101.2 kPa-31.4 kPa=69.8 kPa$

69.8 kilo Pasacl is the pressure of the hydrogen gas.

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3 years ago