How can a flame test identify an unknown element?

In which color coded area would you find an element that behaves both like a metal and a non-metal? Gray Green Blue Purple

Using the chemical equation below, how many moles of Al2O3 produce when 105 grams of Al are reacted? 2Al+Fe2O3 - > Al2O3+2Fe

How can chemists state with certainty that no one will discover an element that would appear on the periodic tabl between sulfur and chlorine

Select the correct answer. An ion has a net charge of 3+. If this ion has 8 protons, how many electrons does it have? A. 3 B. un OC. 7 D. 00 E. 11

Liquid hexane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water. suppose 41. g of hexane is mixed with 150. g of oxygen. calculate the maximum mass of water that could be produced by the chemical reaction.

What water activities might be easier to do in Lake Assal's salty water? What activities could be more difficult?

The suffix "-megaly in the term gastromegaly means:

The harder you strike a drum, the greater the sound's A) medium B) volume C) frequency D) pitch

The equation X + Y 2Z has the rate law equation shown below. Which of the following statements best describes the relationship of X on the rate of the reaction? rate = k[X]2[Y] Changing X has no effect on the reaction rate.

What moves in or out of a substance during a change of state?