What will happen if we conduct the experiments below: 1) In a solution NaOH we add phenolophthalein and later we add HCl.

2) In a vinegar solution we add soda.

3) In a HCl solution we add an amount of copper.​

Why is soap used to remove grease? a. its nonpolar end dissolves the grease. b. it makes the water bond with the grease. c. it chemically bonds with the grease. d. its polar end dissolves the grease.correct answer for apex - a, its nonpolar end dissolves the grease.

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?

Count the number of each type of atom in the equation below, and then balance the equation. write in the numbers of atoms and coefficients. add a 1 if there should be no coefficient. cs2(l) + o2(g) → co2(g) + so2(g) c [ ] s [ ] o > c [ ] s [ ] o [ ] cs2(l) + [ ] o2(g) > [ ] co2(g) + [ ] so2(g)