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3 years ago

If helium does not obey the octet rule, then why do it atomsnot react?

Chemistry

1 answer:

Vikentia [17]3 years ago

6 0

Answer:

The dialysis machine takes the blood in your veins. Then it takes it through a series of tubes which undergoes filtration by use of reverse osmosis. The clean blood is returned to the body.

Explanation:The dialyzer, or filter, has two parts, one for your blood and one for a washing fluid called dialysate. A thin membrane separates these two parts. Blood cells, protein and other important things remain in your blood because they are too big to pass through the membrane. Smaller waste products in the blood, such as urea, creatinine, potassium and extra fluid pass through the membrane and are washed away.

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If all the threonines of an antifreeze protein were changed to valines, what would happen to the protein's ability to bind and f

Vladimir [108]

If all the threonines of an antifreeze protein were changed to valines, THE PROTEIN WOULD NOT BIND WATER AND WOULD LOSE ANTIFREEZE PROPERTIES.

Antifreeze proteins (AFPs) are biological antifreeze materials originally found in polar fish; AFPs can bind to ice and subsequently inhibit the growth of the ice crystals.

6 0

3 years ago

Compare the stability of primary, secondary and tertiary carbocation

disa [49]

Answer:

Primary carbocations are most stable, Secondary carbocations are more stable, tertiary carbocations are least stable.

Explanation:

This is due to Asterric hinderance.

3 0

3 years ago

How/why does the density of an object change when heated?

kumpel [21]

Because the atoms are separating bc of the heat. A solid has really compact atoms so if it was melted its atoms would become looser and form a liquid

6 0

3 years ago

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ss7ja [257]

Answer:

Explanation:

6 0

3 years ago

What mass in grams of hydrogen is produced by the reaction of 4.73 g of magnesium with 1.83 of water

Luba_88 [7]

The mass, in grams, of hydrogen that would be produced from the reaction will be 0.102 grams

<h3>Stoichiometric calculations</h3>

From the balanced equation of the reaction:

$Mg + 2H_2O -- > Mg(OH)_2 + H_2$

The mole ration of magnesium to water is 1:2.

Mole of 4.73 grams Mg = 4.73/24.3 = 0.195 moles

Mole of 1.83 grams water = 1.83/18 = 0.102 moles

Hence, water is limiting.

Mole ratio of water to the hydrogen produced = 2:1

Equivalent mole of hydrogen gas produced = 0.102/2 = 0.05 moles

Mass of 0.05 moles hydrogen gas = 0.05 x 2 = 0.102 grams

More on stoichiometric calculations can be found here: brainly.com/question/27287858

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4 0

2 years ago