A 55-g sample of a gaseous fuel mixture contains 0.43 mole fraction propane; the remainder of the mixture is butane. What are the masses of propane and butane in the sample?

Which of the following is true concerning a plot of number of neutrons vs. number of protons? A band of stability is created that is indicative of stable nuclei. The nuclei that fall outside the band undergo spontaneous radioactive decay.

Why are some alkali metals stored under oil?

Why is radioactivity dangerous? Explain?

Designing an experiment your family has planted a garden you o serve that some of the plants in the garden have teeth marks In them what is eating the plants

If a chemical reaction is reversed what happens to the enthalpy of the reaction

What is the n factor of Ba (MnO4) 2 in acidic medium when it reacts with H2O2?

What organelle is primarily used in respiration

Which of the following planetary objects have the most affect on Earth's tides? sun Mars moon Venus

Ionic compounds are formed by the ... of electrons? by the what?

What is it called when energy is created without oxygen?