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Simora [160]
3 years ago
8

Y’all help me out i’m so dumb 3

Chemistry
1 answer:
ella [17]3 years ago
8 0
Erosion can be created from all of them (All of the above)
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What is a polyprotic buffer?
coldgirl [10]
Buffers - mixtures of conjugate acid and conjugate base at ±1 pH unit from pH = pKa. Resistant to changes in pH in response to small additions of H+ or OH-. ... Polyprotic acids - dissociation of each H+ can be treated separately if the pKa values are different
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3 years ago
How many moles are in 5.25 L of oxygen gas as stp
Masteriza [31]

Answer:

The correct answer is 0, 235 mol

Explanation:

We use the formula PV =nRT. The normal conditions of temperature and pressure are 273K and 1 atm, we use the gas constant = 0, 082 l atm / K mol:

1 atm x 5, 25l = n  x 0, 082 l atm / K mol x 273 K

n= 1 atm x 5, 25l /0, 082 l atm / K mol x 273 K

n= 0, 235 mol

8 0
3 years ago
4. What is the role of the<br> benedict solution in testing for<br> presence of carbohydrates
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Answer:

it identifies reducing sugars (monosaccharide's and some disaccharides), which have free ketone or aldehyde functional group

Explanation:

It turns from turquoise to yellow or orange when it reacts with reducing sugars.

3 0
2 years ago
How did plastics become the material of choice for so many varied applications?
Maslowich

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7 0
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How many electrons are in a ion that has 16 protons and 59 neutrons if it has negative 2 charge? ​
GalinKa [24]
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