27
Isotopes of an atom could be detected based on which of the following characteristics? atomic radius nuclear charge nuclear mass number of electrons

28
A substance dissolves well in water but not in benzene. Which of the following can be concluded about the substance? The substance may be either polar or nonpolar. The substance may be either polar or nonpolar. The substance is nonpolar. The substance is polar. The substance is neither polar nor nonpolar.

29
When bonded with sulfur, which element will most likely form an ionic compound? oxygen calcium hydrogen chlorine

30
A violent reaction occurs when sodium is placed in water. Which element would produce a similar reaction with water? Mg S K Cr

31
How many moles of sodium carbonate are in 500. mL of a M solution of sodium carbonate? mole mole 3.18 moles 150. moles

32
When you are done with an experiment, how should you dispose of used chemicals? Mix all chemicals in a waste container and dump them in the trash. Mix all chemicals in a waste container and dump them in the trash. Pour all chemicals down the sink. Follow the intructions given to properly dispose of the particular chemical(s). Follow the intructions given to properly dispose of the particular chemical(s). Mix the chemicals in a flask, and heat the mixture until it evaporates into the air. Mix the chemicals in a flask, and heat the mixture until it evaporates into the air.

37
Baking soda is a white powder. It is a base with the formula NaHCO 3. When vinegar containing acetic acd is poured onto the powder, bubbles appear. This reaction is called carbonation titration neutralization combustion

41
Tritium is the form of hydrogen that contains two neutrons and one proton. What is the relationship between tritium and hydrogen? Tritium is an isotope of hydrogen Hydrogen is an isotope of tritium Tritium is an ion of hydrogen Hydrogen is ionized tritium

42
Which of the following elements is the MOST easily ionized? nitrogen neon carbon lithium

69
Isotopes of an atom could be detected based on which of the following characteristics? atomic radius nuclear charge nuclear mass number of electrons

70
A substance dissolves well in water but not in benzene. Which of the following can be concluded about the substance? The substance may be either polar or nonpolar. The substance is nonpolar. The substance is polar. The substance is neither polar nor nonpolar.

71
When bonded with sulfur, which element will most likely form an ionic compound? oxygen calcium hydrogen chlorine

72
A violent reaction occurs when sodium is placed in water. Which element would produce a similar reaction with water? Mg S K Cr

73
How many moles of sodium carbonate are in 500. mL of a M solution of sodium carbonate? mole mole 3.18 moles 150. moles

74
When you are done with an experiment, how should you dispose of used chemicals? Mix all chemicals in a waste container and dump them in the trash. Mix all chemicals in a waste container and dump them in the trash. Pour all chemicals down the sink. Follow the intructions given to properly dispose of the particular chemical(s). Follow the intructions given to properly dispose of the particular chemical(s). Mix the chemicals in a flask, and heat the mixture until it evaporates into the air. Mix the chemicals in a flask, and heat the mixture until it evaporates into the air.

79
Baking soda is a white powder. It is a base with the formula NaHCO 3. When vinegar containing acetic acd is poured onto the powder, bubbles appear. This reaction is called carbonation titration neutralization combustion

83
Tritium is the form of hydrogen that contains two neutrons and one proton. What is the relationship between tritium and hydrogen? Tritium is an isotope of hydrogen Hydrogen is an isotope of tritium Tritium is an ion of hydrogen Hydrogen is ionized tritium

84
Which of the following elements is the MOST easily ionized? nitrogen neon carbon lithium