Runs 2laps around a 400 meter track what is the displacement

What volume of 0.100 M Na3PO4 is required to precipitate all the lead (ii) ions from 150.0 mL of 0.250 M Pb (NO3) 2?

Which list of the phases of H2O is arranged in order of increasing entropy? (1) ice, steam, and liquid water (2) ice, liquid water, and steam (3) steam, liquid water, and ice (4) steam, ice, and liquid water

The heating and cooling of molecules will make what change their state of matter

If a reactant is in the solid state, a (g) is placed as a subscript after the chemical formula. true or false

Which is the atomic number of an atom that forms an ion with 18 electrons and a charge of 2+?

When an atom that has no charge loses two electrons, it becomes a: A: positive ion. B: negative ion. C: positive isotope. D: negative isotope.

A 155.0 9 piece of copper at 182 °C Is dropped into 2500 g of water at 23.9 °C. (The specific heat of copper is 0.385 1/9°C.) Calculate the final temperature of the mixture. (Assume no heat loss to the surroundings.)

Which state of matter is characterized by having an indefinite shape, but a definite volume? Gas Liquid Solid None of the above

What metric unit is used to measure distance?

In the chemical formula 3NO2 the number 3 is a