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Nuetrik [128]
3 years ago
8

How are elements in the same group in the periodic table alike

Chemistry
2 answers:
kolbaska11 [484]3 years ago
6 0
C or D sorry if neither
ale4655 [162]3 years ago
4 0

Answer:

D. They have similar chemical properties

Explanation:

That's because they have the same number of electrons in the outer orbital

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What is the concentration, in grams per liter, of a solution prepared by dissolving 0.00040 mol HCl in 2.2 L H2O? Assume that th
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Answer:

0.00663 grams/liter

Explanation:

HCl is a mineral acid with a molar mass of 36.46 g/mol.

No. of moles= mass/RMM

Making mass the subject of the formula:

Mass=Number of moles × RMM

Therefore 0.00040 mol HCl has a mass of:

0.00040 mol × 36.46 g/ mol

=0.01458 grams.

0.01458 grams are in 2.2 liters, Therefore 1 liter will have

0.01458 grams/2.2 liters= 0.00663 grams

concentration= 0.00663 grams/liter

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3 years ago
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Match the part of the wave to the diagram
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Answer:

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Explanation:

The first high part is Q4, then the low part is Q7, the following high part is Q6, and the energy moving from the next two high points is Q5 because of the diagram.

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3 years ago
For the following reaction, identify the substances being oxidized and reduced (including their oxidation numbers), the oxidizin
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<span>Si is reduced/Oxidizing reagent Mg is oxidized/reducing reagent</span>
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Ivenika [448]

Answer:

Temperature of the water

Explanation:

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Thus the respiration rate of the goldfish is the dependent variable because it is controlled by the temperature of the water and changes accordingly.

Summarily, the independent variable is the temperature of the water while the dependent variable is the respiration rate of the goldfish.

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What is the difference between electron configuration and valence electron configuration?
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