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According to Table G, which substance forms an unsaturated solution when 80. grams of the substance are stirred into 100. grams of H2O at 10.°C?
doubled
2H2(g) + O2(g) → 2H2O(g) + 483.6 kJ
66 800 J
(78.92 u)(49.31) + (80.92 u)(50.69)
KI
TiO
II and IV
different molecular structures and different physical properties
These diagrams represent substances that have
doubled
2H2(g) + O2(g) → 2H2O(g) + 483.6 kJ
66 800 J
(78.92 u)(49.31) + (80.92 u)(50.69)
KI
TiO
II and IV
different molecular structures and different physical properties
Which two particle diagrams each represent a sample of one substance?
doubled
2H2(g) + O2(g) → 2H2O(g) + 483.6 kJ
66 800 J
(78.92 u)(49.31) + (80.92 u)(50.69)
KI
TiO
II and IV
different molecular structures and different physical properties
Which numerical setup can be used to calculate the atomic mass of the element bromine?
doubled
2H2(g) + O2(g) → 2H2O(g) + 483.6 kJ
66 800 J
(78.92 u)(49.31) + (80.92 u)(50.69)
KI
TiO
II and IV
different molecular structures and different physical properties
A sample of gas is in a rigid cylinder with a movable piston. The pressure of the gas is kept constant. If the Kelvin temperature of the gas is doubled, the volume of the gas is
doubled
2H2(g) + O2(g) → 2H2O(g) + 483.6 kJ
66 800 J
(78.92 u)(49.31) + (80.92 u)(50.69)
KI
TiO
II and IV
different molecular structures and different physical properties
What is the chemical formula of titanium(II) oxide?
doubled
2H2(g) + O2(g) → 2H2O(g) + 483.6 kJ
66 800 J
(78.92 u)(49.31) + (80.92 u)(50.69)
KI
TiO
II and IV
different molecular structures and different physical properties
Which equation shows conservation of mass and energy for a reaction at 101.3 kPa and 298 K?
doubled
2H2(g) + O2(g) → 2H2O(g) + 483.6 kJ
66 800 J
(78.92 u)(49.31) + (80.92 u)(50.69)
KI
TiO
II and IV
different molecular structures and different physical properties
What is the amount of heat required to completely melt a 200.-gram sample of H2O(s) at STP?
doubled
2H2(g) + O2(g) → 2H2O(g) + 483.6 kJ
66 800 J
(78.92 u)(49.31) + (80.92 u)(50.69)
KI
TiO
II and IV
different molecular structures and different physical properties
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