Why do scientists make hypothesis

NH3 + __ H2SO4 → __ (NH4) 2SO4

Distinguish between polar and non polar molecules.

If 15.0 liters of neon at 35.0C is allowed to expand to 50.0 liters, what must the new temperature be to maintain constant pressure?

Which element is a noble gas? (1) krypton (3) antimony (2) chlorine (4) manganese

Look at the reaction below. H₂SO₄ (aq) + Ca (OH) ₂ (aq) - - - > CaSO₄ (aq) + 2H₂O (/) Which substance is the base in the reaction? A. 2H2O (l) B. H2SO4 (aq) C. CaSO4 (aq) D. Ca (OH) 2 (aq)

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?