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ICE Princess25 [194]
3 years ago
13

If 4 orbitals on one atom overlap 4 orbitals on a second atom, how many molecular orbitals will form?

Chemistry
1 answer:
scoundrel [369]3 years ago
7 0

answer:8

explanation: my answer is 8 because 4+4 = 8 and thats how i get my answer

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Calcium chloride is added to the roadways after a snowstorm. Which colligative property is being showcased here?
Annette [7]

Answer:

D. freezing point depression

Explanation:

8 0
3 years ago
Which of the following solutions is a buffer?A) A solution made by mixing 100 mL of 0.100 M HClO and 50 mL of 0.100 M HCl.B) A s
kumpel [21]

Answer:

D

Explanation:

solution made by mixing 100 mL of 0.100 M HClO and 50 mL of 0.100 M NaOH Can resist pH change when there is little addition of either acid or base, hence it is a buffer solution

7 0
3 years ago
Calculate the number of moles of solute in 16.55 mL of 0.1475 M M2Cr3O7
aliina [53]

Number of moles of solute in 16.55 mL of 0.1475 M M2Cr3O7 is 0.00244 moles.

<u>Explanation:</u>

The properties and behavior of many solutions depend not only on the nature of the solute and solvent but also on the concentration of the solute in the solution. Molarity (M) is the concentration of a solution expressed as the number of moles of solute per liter of solution:

Molarity = \frac{moles-solute}{lites-solution},

Here , litres-solution = \frac{16.55}{1000} l = 0.01655l.

⇒ Molarity = \frac{moles-solute}{lites-solution}

⇒ 0.1475 = \frac{moles-solute}{0.01655}

⇒ moles-solute = 0.01655(0.1475)

⇒ moles-solute = 0.00244

Therefore, Number of moles of solute in 16.55 mL of 0.1475 M M2Cr3O7 is 0.00244 moles.

6 0
3 years ago
In the reaction 2co (g) + o2 (g) → 2co2 (g), what is the ratio of moles of oxygen used to moles of co2 produced?
Butoxors [25]
To determine this simply use the coefficients in the balanced equation to relate the moles of oxygen to CO2.

Here it would be 1 : 2.
7 0
3 years ago
Read 2 more answers
32. Using tables from this chap-
UkoKoshka [18]

Answer:

  • 44 m
  • 0.0046 g
  • 10.7 cg

Explanation:

Just move the decimals according to the conversions. khdbdcm

For example, 0.044km, using khdbdcm, from k you have to move 3 spaces to reach "b" or the standard unit.

6 0
3 years ago
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