What does atomic number indicate

The volume of a gas is 17.5 mL at 29◦C and 0.863 atm. What will the volume be at 13◦C and 0.994 atm?

A chemical spill gets into the soil and effects the plants within a forested ecosystem. explain why the top predators would be most affected by this

Is shredding paper a physical or chemical change? Explain why?

1. Ir a mixture contains 0.639 g NaCl, 0.350 g NHACI, & 0.851 g of SiO2, with due regar Signiricant figures, what is the mass percent of NaCl in the mixture?

Which of the following states that an orbital can contain two electrons only if all other orbitals at that sublevel contain at least one electron?8

If you remove all the particles from a wooden table, what remains

Which of the following is the best description of covalent bonding? 1. Bonding that occurs between elements with similar electronegativities, and with transfer of electrons. 2.

You are asked to smell a solution in a beaker. what is the best way of doing this?

The specific gravity of iron is 7.87, and the density of water at 4.00 ∘C is 1.00 g/cm3. You can use this information to find the density of iron. Find the volume occupied by 4.50 g of iron.

The volume of a gas is 93 ml when the temperature is 91? c. if the temperature is reduced to 0? c without changing the pressure, what is the new volume of the gas?