Which of the following items represents a chemical change? burning melting evaporation freezing

The physical properties of a compound are similar to those of its elements.

a. True

b. False

What are some examples of homogeneous mixtures

In which substance do the molecules have the strongest attractions to one another? a. sugar, a solid c. sulfuric acid, a liquid b. hydrogen, a gas d. water, a liquid

How do you get rid of a splinter?

How are acids and bases used by humans

During the time 0.325 mol of an ideal gas undergoes an isothermal compression at 22.0∘c, 352 j of work is done on it by the surroundings. part a if the final pressure is 1.76 atm, what was the initial pressure?

A intramuscular medication is given at 5.00mg/kg of body weight. What is the dose in grams for a 180-lb patient?

Nuclear fusion is the source of energy for stars. Besides hydrogen, which other element is most likely also common in stars?

Since the early 2000s, careers in the field of genetics have grown at a rapid pace. Which of these is a probable cause for this explosion of available and expanding jobs?

How many litres of 0.215 m NaCl contains 4.30 mol of this salt? Assume this solvent is H2O I'm confused on this question because little m is molality but when I looked this up on google, someone solved the problem assuming it was molarity

How can a neutral atom become a positively-charged particle?