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Q 1/15
Score 0
The water molecule has
30
polar bonds but is a non polar molecule
polar bonds and is a polar molecule.
non-polar bonds but is a polar molecule
non-polar bonds and is a non-polar molecule
Q 2/15
Score 0
The types of chemical bonding present in ice are
30
covalent, hydrogen bonding and dispersion forces.
covalent, ion-dipole and hydrogen bonding.
ion-dipole, hydrogen bonding and dispersion forces.
covalent, ion-dipole and dispersion forces.
15 questions
Q.
The water molecule has
1
30 sec
Q.
The types of chemical bonding present in ice are
2
30 sec
Q.
When ice melts the chemical bonding which is partially overcome is
3
30 sec
Q.
When water at its boiling point changes into steam, energy is
4
30 sec
Q.
The specific heat capacity of ethanol is 2.44 J/g/°C and that of water is 4.18 J/g/°C. If 100 g of ethanol and 100 g of water at the same temperature and under the same conditions are each given the same amount of heat energy the temperature of
5
30 sec
Q.
Which of the following gases will have the highest solubility in water?
6
30 sec
Q.
Ethanol, C2H5OH, has a molar mass of 46 g/mol. Propane, C3H8, has a similar molar mass of 44 g/mol. Which of the following statements is correct?
7
30 sec
Q.
Ionic salts, such as potassium bromine, KBr, dissolve in water. The best explanation for this is because
8
30 sec
Q.
In which one of the following lists are all of the substances insoluble in water?
9
30 sec
Q.
Which on of the following solutions will from a precipitate when added to a solution of potassium sulfate?
10
30 sec
Q.
From the following choose the compound that is the least soluble in water.
11
30 sec
Q.
Ice at -10°C is placed in a beaker and is slowly headed. When the temperature reaches 0°C the ice starts to melt. The temperature remains constant at 0°C until all of the ice has melted. Which one of the following statements is correct?
12
30 sec
Q.
When lead nitrate solution and magnesium sulfate solution are mixed a white precipitate of lead sulfate forms. After mixing the solutions the strongest attractive forces are between
13
30 sec
Q.
Which of the following compounds, when in the liquid state, in most likely to be miscible with water?
14
30 sec
Q.
Which of the following cannot be explained by the existence of hydrogen bonding in water?
