If there are 7 moles of copper dissolved in 15 moles of zinc to make 22 moles of a brass solution. What is the mole fraction of copper?

What is the mass of 11.84 ml ofmethanol if it's density is 0.7198g/ml

Cuales son los nombres de los siguientes iones NH4+1 Y NO3-1

Classify each of the equations as synthesis, decomposition, or replacement. a. 2 A1 + F → 2 Fe + A b. 2 Ag + S → AS c. CaC → CaO + C d. 2 NO + → 2 N

Order the bond angles of the molecules or ions from smallest to largest: O3+, O3, O3-

The gap between plates at divergent boundaries is filled with a. rock b. dirt c. water d. magma

What is the difference between a root word and a combining form? List 2 examples of combining form

What is the octet rule and how does it explain the formation of ionic compounds?

Can somebody explain step by step how to solve decomposition reactions?

Which of the following statements are correct about the chemical reaction? H2 + O2 - > H2O2 versus 2 H2 + O2 - > 2 H2O? They are both balanced chemical equations. The two reactions are equivalent. The laws of thermodynamics apply to both.

What do chemists use to describe a chemical reaction