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RUDIKE [14]
3 years ago
13

Why alkali metals have low malting and bioling point

Chemistry
1 answer:
Arada [10]3 years ago
4 0
Alkali metals have only one valence electron and so have low binding energy to the metallic crystal lattice. ... A lower amount of energy needed to break a bond means a lower melting/boiling point.
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How do you write a chemical equation given a word equation ? (Chemistry)
earnstyle [38]
Step one: Identify reactants and products and place them in a word equation.

Step two: Convert the chemical names into chemical formulas. Place them based on the chemical equation and write the state symbols.

Step three: balance the chemical equation.
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3 years ago
Christy is a forensic scientist. She is given
Nitella [24]

Answer:

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Explanation:

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How many moles are in 2.12g Cr2O3
ohaa [14]

Answer:

0.01395mol Cr2O3

Explanation:

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3 years ago
Name at least two benefits of using models in science
STatiana [176]

Answer:

Viewing systems from multiple perspectives.

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3 0
3 years ago
Read 2 more answers
Calculate the molality of an ethylene glycol (C2H6O2) soltuion, that has a molarity of 2.07 M. The density of the solution is 1.
vlada-n [284]

Answer:

2.03

Explanation:

Let's <u>assume we have 1 L of the solution</u>:

  • There would be 2.07 ethylene glycol moles.
  • The solution would weigh (1000 mL * 1.02 g/mL) = 1020 g.

With that information we can <u>calculate the molality</u>:

  • molality = moles of solute / kg of solvent
  • molality = 2.07 moles / (1020 ÷ 1000) = 2.03 m

Keep in mind that this is only an estimate, as we used the kg of the solution and not of the solvent.

3 0
2 years ago
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