Potassium chloride will dissolve in water but not in oil. Why?

Is burning a wood splint a chemical or physical change?

Given the reaction: C6H12O6 (s) + 6 O2 (g) 6 CO2 (g) + 6 H2O () How many moles of C6H12O6 (s) are needed to produce 24 moles of carbon dioxide? A) 1.0 moles B) 12 moles C) 24 moles D) 4.0 moles

How might you cause a saturated solution of lithium sulfate to form a precipitate?

How many atoms of phosphorus are in 2.30 mol of copper (II) phosphate? I'm having trouble figuring out the steps. I do know Avogadro's number is needed! 6.022x10^23

Which statement describes a covalent bond

O2 + CS2 → CO2 + SO2 Which of the following shows the equation balanced?

Convert 970. mm Hg to atm.

The addition of a catalyst in a chemical reaction (A) increases the concentration of products at equilibrium. (B) increases the fraction of reactant molecules with a given kinetic energy.

Is fire hot or cold?

In Flask A, you reacted 7.23 g Mg with 1.05 mol HCl. In Flask B, you reacted 1.22 g Mg with 1.35 mol HCl. Which balloon will inflate the most?