Element X reacts with iron to form two different compounds with the formulas FeX and Fe2X3. To which group on the Periodic Table does element X belong?

What property did mendeleev use to organize the elements into a periodic table?

A compound is found to contain only 24.5 g nitrogen and 70.0 g oxygen. what is the compounds empirical formula.

How do you prepare diluted acid from concentrated acid?

What is polar and unpolar bonds?

Is soap more or less dense than water?

A 4.5-liter sample of a gas has 0.80 mole of the gas. If 0.35 mole of the gas is added, what is the final volume of the gas? Temperature and pressure remain constant. 3.9 liters 5.3 liters 6.3 liters 6.5 liters

What is the unit used to measure the atomic mass?

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.