A compound's empirical formula is ch3. if the formula mass is 30 amu, what is the molecular formula?

How many atoms of iodine are in 12.75g of CaI2

What must you determine first when solving a word rproblem?

Which of the following in acid rain is contributed by burning low-grade coal? Group of answer choices carbonic acid nitric acid sulfuric acid all of the above none of the above

Which of the following measurements is expressed to three significant figures? a) 0.007 m b) 7077 mg c) 7.30 x 10^-7 d) 0.070 mm

What is the mass of 5.31*1021 platinum atoms?

A chemical reaction involves the rearrangement of atoms to form new molecules. During a chemical reaction, however, atoms are neither created nor destroyed. Which of the following is true about the atoms involved in a chemical reaction? A.

What is the new concentration, after diluting 300 mL of a 1.5 M LiCl solution to 1L

The answer that he gave was wrong

In which orbital does an electron in a bromine atom experience the smallest?

What characteristics of water allow it to have high surface tension?