Which of these equations is balanced? (neither and both are an option)

a. 3 H2SO4 + 2Al → Al2 (SO4) 3 + 3H2

b. 2KCl + Pb (NO3) 2 → 2KNO3 + PbCl2

How many miles are there if you have 70.5g of Nacl

Which molecule is nonpolar but has polar covalent bonds?

Moving from left to right across a row of the periodic table, which of the following values increases by exactly one from element to element? A. Isotope number B. Atomic number C. Atomic mass unit D. Mass number

Why does no gas obey the ideal gas law at 0.1 kelvin

Which is a compound? A. Kr B. O2 C. Cl2 D. CuF2

Which metal in Period 5 is very reactive and has two valence electrons in each atom? rubidium (RD) strontium (SI) zirconium (Z1) silver (Ag)

Sara and Sam went for a two-hour drive. According to the graph, between. 75 hours and 1.25 hours into their trip, they A) slowed down to a speed of 15km/hour. B) travelled at a constant rate of 30km/hour.

Define the following terms: acids, bases, oxoacids, oxoanions, and hydrates.

Calculate the concentration of a solution that has 6.7 moles in a volume of 0.6 liters.

Is sidewalk cement an element or a compound?