3 years ago

Fill in the blanks when an atom loses an electron it becomes an

Chemistry

1 answer:

enot [183]3 years ago

5 0

When an atom loses an electron it becomes a cation(positively charged ion)

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Which of these is an oxidation half-reaction?

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Answer:

E= mc sqared

Explanation:

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4 years ago

Identify the compound that has polar bonds, but a dipole moment of 0. identify the compound that has polar bonds, but a dipole m

matrenka [14]

CF4 is the compound that has polar bonds, but dipole moment of O. C-f bond is a polar bond which is covalent. It has dipole of 4 polar C.F bonds and results in the overall monopolar molecule.
CF4 it has no net dipole moment.

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3 years ago

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A sample of sugar contains 1.505 × 1023 molecules of sugar. How many moles of sugar are present in the sample?

alisha [4.7K]

1 mole ------------ 6.02 x10²³ molecules
? mole ----------- 1.505 x10²³ molecules

1.505x10²³ / 6.02x10²³ => 0.25 moles

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3 years ago

Exemplificati solutii in care solventul este gaz

yaroslaw [1]

Answer:

solute (gaz: O,N) + solvent (gaz: Co2) = aer

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3 years ago

Smooth muscle myosin is a motor protein that plays a crucial role in the contraction of smooth muscle. If this protein has a mol

zysi [14]

Answer: Thus the mass, in grams, of 27 moles of smooth muscle myosin is 12960000 grams

Explanation:

According to avogadro's law, 1 mole of every substance weighs equal to the molecular mass, occupies 22.4 L at STP contains avogadro's number $(6.023\times 10^{23})$ of particles.

Molecular mass of protein = 480,000 g/mol

Thus 1 mole of protein weighs = 480,000 g

So 27 moles of protein weighs = $\frac{480,000}{1}\times 27=12960000g$

Thus the mass, in grams, of 27 moles of smooth muscle myosin is 12960000 grams

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4 years ago