How do find out how many needed grams to react

It would take one light year to travel to the sun? True or false?

An element has four naturally occurring isotopes with the masses and natural abundances given here. find the atomic mass of the element. isotope mass (amu) abundance (%) 1 135.90714 0.1900 2 137.90599 0.2500 3 139.90543 88.43 4 141.90924 11.13

What is true about all the elements in the same column of the periodic table

Give the quantum number sets for each electron in the 3p sublevel of a phosphorus (P) atom

A speed-time graph shows a line sloping downward. How was the speed changing?

Which condition will release more energy when an electron changes levels? From n = 4 to n = 3 from n = 3 to n = 2 from n = 2 to n = 1

What happens when an electron moves from a higher energy level to a lower one

A solution of a compound with a known extinction coefficient of 23,100 M-1cm-1 has an absorbance of 0.735 in a 1.30cm path length, what is the concentration of the solution

True or False ... Renewable resources have disadvantages. If so what are the disadvantages?

Which of the following is a transuranium element? Ra Am Tc Pa