When aqueous solutions of lead (II) nitrate and potassium iodide are mixed together, a bright yellow precipitate is produced. This yellow powder was a common pigment
in paints until its use was discontinued for safety reasons.

TASK: Use stoichiometry to determine the mass of potassium iodide needed to
produce 50.00 g of the precipitate.

The covalent compound acetylene, which is the fuel of the oxyacetylene torch used by welders, has the molecular formula c2h2. the covalent compound benzene, a commercial solvent, has the molecular formula c6h6 each of these covalent compounds contains carbon and hydrogen atoms in a one-to-one ratio. would it be correct to write the chemical formulas of each as ch? explain.

What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm?

The plant food contains nh4)3po4 what tests would you run to verify the presence of the nh4 ion and the po4 ion