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3 years ago

15

Given the following unbalanced equation:

1 answer:

LUCKY_DIMON [66]3 years ago

5 0

52.28 if I’m not wrong!

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Fed [463]

<h2>Answer: O: 1s22s22p4</h2>

Explanation: In writing the electron configuration for oxygen the first two electrons will go in the 1s orbital. Since 1s can only hold two electrons the next 2 electrons for O go in the 2s orbital. The remaining four electrons will go in the 2p orbital. Therefore the O electron configuration will be 1s22s22p4.

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3 years ago

Direction: To compare and differentiate the animal and plant cell base on the presence and absence of certain organelles.Fill in

S_A_V [24]

Answer:

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Explanation:

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2 years ago

O<br> O<br> O<br> A. Molecule B. Compound<br> C. Both

ra1l [238]

This doesn’t seem like the full question

5 0

3 years ago

How many grams of NaCl should be added to 250 grams of waterto<br> make a 0.40 m solution?

brilliants [131]

Answer:

5.85 grams of NaCl should be added to 250 grams of water to make a 0.40 m solution.

Explanation:

$molality=\frac{\text{Mass of solute}}{\text{Molar mass of solute}\times \text{ Mass of solvent (kg)}}$

Mass of NaCl =x

Molar mass of NaCl = 58.5 g/mol

Molality of the solution = 0.40 m

Mass of the solvent = 250 g = 0.250 kg (1g = 0.001 kg)

$0.40 m=\frac{x}{58.5 g/mol\times 0.250 kg}$

$x=0.40 m\times 58.5 g/mol\times 0.250 kg=5.85 g$

5.85 grams of NaCl should be added to 250 grams of water to make a 0.40 m solution.

7 0

3 years ago

Which factor is most important to consider when evaluating a journal article about global warming?

Strike441 [17]

Answer:

Does the article contain facts or only opinions? - B)

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3 years ago

Read 2 more answers