chemistry

What type of intermolecular forces are due to the attraction between temporary dipoles and their induced temporary dipoles?

• London dispersion

  
  

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How many grams of Ca(OH)2 are contained in 1500 mL of 0.0250 M Ca(OH)2 solution?

• 2,775g 

  
  

• 2,375g

• 2,575g

• 2,875g

The degree of oxidation of manganese in potassium permanganate:

• +7

• +8

• +3

• +5

Mass fraction of oxygen in aminoacetic acid (%)

• 44%

• 42,777%

• 42,6667%

• 45,6667%

 The amount of hydrogen formed when 0.6 mol of acetic acid reacts with 0.5 mol of sodium

• 6,6l

• 7,6l

• 5,5l

• 5,6l

 Indicate a compound that has a negative oxidation state of hydrogen:

• CaH2

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Masses of salt and water for the preparation of a solution with a mass fraction of 18%, 500g:

• 490g

• 495g

• 491g

• 492g

Mass of 0.25 Mol of glucose:

• 45g

• 55g

• 43g

• 40g

What of the following substance is used to increase the acidity of gastric juice?

• Hal

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The rate of a chemical reaction defined as?

• changes in the concentration of reactants per unit time

  
  

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