A student uses red litmus paper to test the pH value of different solutions. Which would result in a color change of the litmus paper? soap
vinegar
lemon juice
antifreeze

Which type of bonding involves the complete transfer of a valence electron from a less electrogrative atom to a more electronegative one

Why is retrograde motion an apparent motion

Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 140 kj is given off per mole of c2h4 reacting, how much heat (in mj) is released when 12 kg of c2h6 forms?