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blondinia [14]
4 years ago
7

ASAP I AM GIVING BRAINLIEST PLEASEEEEEEEEE HELPPPPPPPPPPPPPPPPPP

Chemistry
1 answer:
zepelin [54]4 years ago
7 0

Answer:

B?

Explanation:

In the example, the amount of hydrogen is 202,650 x 0.025 / 293.15 x 8.314472 = 2.078 moles. Use the mass of the hydrogen gas to calculate the gas moles directly; divide the hydrogen weight by its molar mass of 2 g/mole. For example, 250 grams (g) of the hydrogen gas corresponds to 250 g / 2 g/mole = 125 moles.

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Which of the following is the smallest?<br> amino acids<br> peptides<br> polypeptides<br> proteins
yKpoI14uk [10]
Amino acids those are the things inside your stomach that break up the food/drink and distribute the nutrients you need throughout the body

6 0
3 years ago
Read 2 more answers
What is wrong with or ambiguous about the phrase "four molecules of NaCl"?
Alex787 [66]

Answer:

the NaCl is not considered a molecula

Explanation:

Sodium atoms, (Na +) and chlorine atoms, (Cl-) form a three-dimensional network. The cations and the anions are joined together by electrostatic attraction which we call ionic bonding

Molecules are atoms bound with chemical bond.

5 0
3 years ago
Two individual atoms of the same element are slightly different. One has one more proton than it has electrons. The other has on
Talja [164]

Answer:

ions

Explanation:

Individual atoms of the same element but having slightly different number of protons and electrons are called ions.

Ion is a charged particle.

  • An atom is made up of three fundamental subatomic particles.
  • Protons are the positively charged particles
  • Electrons are the negatively charged particles
  • Neutrons do not carry any charges.

When the number of protons > electrons the body is positively charged.

When the number of electrons > protons the body is negatively charged.

Charged particles are called ions.

4 0
3 years ago
Which statement about electric charge is true? A. Electric charge is created by an electric current. B. Electric charge influenc
Anni [7]

Answer:

A

Explanation:

4 0
3 years ago
when 46 grams of water are produced how many grams of oxygen must react according to the equation 2h2+o2=2h2o
natka813 [3]

the balanced equation for the formation of water is as follows

2H₂ + O₂ ---> 2H₂O

molar ratio of oxygen to water is 1:2

mass of water produced is - 46 g

therefore the number of moles of water produced - 46 g / 18 g/mol = 2.56 mol

1 mol of oxygen reacts to give 2 mol of water assuming oxygen is the limiting reactant

for 2 mol of water to be produced 1 mol of oxygen has to react

therefore for 2.56 mol of water to be produced - 1/2 x 2.56 mol = 1.28 mol of oxygen should react

mass of oxygen reacted is - 1.28 mol x 32 g/mol = 41.0 g

mass of oxygen that should react is 41 g

8 0
4 years ago
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