A student has a sample of the mixed salt PbCO3 . X Pb(OH)2. In a mixed salt two compounds are mixed together in one crystal. X represents the mole ratio between the two compounds, and is usually a small whole number. The student heats the sample with sulfuric acid which causes the salt to react completely, producing PbSO4(s), CO2(g) and H2O as the products. If 2.280 g of PbSO4 and 0.1104 g of CO2 are produced in the reaction, what is the value of X for this particular mixed salt?

What type of energy do chemical bonds have? what type of energy is it converted to during chemical reactions? question 15 options: chemical bonds have kinetic energy, which is converted to potential energy during chemical reactions. chemical bonds have electric energy, which is converted to potential energy during chemical reactions. chemical bonds have heat energy, which is converted to kinetic energy during chemical reactions. chemical bonds have potential energy, which is converted to heat energy during chemical reactions.

How hot is the suns corona? (integrated science)

20 pts ‼️ an unmanned spacecraft travels to mars. mars has a lower strength of gravity than earth. where in the image is the spacecraft’s weight the greatest?