I need help please How many grams of NaCl are dissolved in 90.0 mL of a 1.5 M solution? (hint: convert mL to L before using the above equations, and you need the molar mass) *

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?

Two nails have identical sizes and shapes. in one nail, 20 percent of the domains are lined up. in the other nail, 80 percent of the domains are lined up. which has stronger magnetic force? first answer gets brainliest!

Which type of intermolecular attractions holds ammonia molecules together with other ammonia molecules?