Zn (s) + 2HCl (aq) → H2 (g) + ZnCl2 (aq) When 25.0 g of Zn reacts, how many L of H2 gas are formed at STP?

Convert 44 centimeters to meters. A. 4 m B. 4.4 m C. 0.44 m D. 0.044 m

8. Which of the following compounds is an ionic compound? (metal) a. So3 b. BaF2 C. H20 d. co

A compound consists of 65.45% c, 5.492% h and 29.06%o. it has a molar mass of approximately 110 amu. determine the empirical and molecular formula of the compound

A compound has an empirical formula of Na2CO3 and a molar mass of 318g/mol. Find its molecular formula.

A sample of vinegar has a pH of 5, and a sample of rainwater has a pH of 6. Which of the following statements best describes these two substances? A. Both samples are bases, and vinegar is more basic. B.

Calculate the percentage by mass of nitrogen in ptcl2 (nh3) 2.

Below are the structures of three fatty acids, palmitic acid, stearic acid, and oleic acid. what combination of these fatty acids could you use to make a fat that is liquid at room temperature?

According to the quantum-mechanical model of the atom established by shrödinger, where may the electrons of an atom be found?

Renewable resources cannot be replaced in our lifetime

How do you make a guy who is extremely into you, even though he knows you aren't single, to bug off?