The chemical equation below shows the combustion of propane (C3H8). C3H3 + 502-3CO2 + 4H2O
The molar mass of oxygen gas (O2) is 32.00 g/mol. The molar mass of CzHe is 44.1 g/mol. What mass of O2, in grams, is required to completely react with
0.025 g C3H8?
A. 0.018
B. 0.034
C. 0.045
D. 0.091

Which of the following best explains why the end of a spoon sticking out of a cup of hot water also gets hot? question 7 options: the heat from the hot water is conducted through the spoon handle the hot water heats the air surrounding the upper part of the spoon. the hot water causes a physical change in the spoon handle. the hot water causes a chemical reaction to take place in the spoon.

If it is an isoelectronic series select true, if not select false. o2-, s2-, se2-, te2- na+, k+, rb+, cs+ n3-, p3-, as3-, sb3- ag, cd+, sn3+, sb4+ f-, cl-, br-, i- f-, ne, na+, mg2+ s2-, s, s6+

Which statement best describes the liquid state of matter? a. it has definite shape but indefinite volume. b. it has definite shape and definite volume. c. it has indefinite shape and indefinite volume. d. it has indefinite shape but definite volume.