Magnesium reacts with hydrochloric acid, hcl, to form magnesium chloride and hydrogen gas. the reaction is:

mg + 2hcl → mgcl2 + h2

what is the mass of hcl that would be required to completely react with 5.2 grams of mg?

What is the molar mass of a gas that has density of 2.054 g/l

What best discribes the relationship between wavelength and frequency in a electromagnetic wave

Imagine that a new planet is discovered with two moons of equal mass: moon a and moon b. the mass of the new planet is greater than the combined mass of its moons. moon a is farther away from the new planet than moon b. what is the planet's gravitational pull on moon a compared to the planet's gravitational pull on moon b? the planet's gravity repels moon a with a greater force than it repels moon b, which is why moon a is farther away. the gravitational pull on moon b is greater than on moon a because moon b is closer to the new planet than moon a. the gravitational pull on moon b is greater than on moon a because moon b is farther away from the new planet than moon a. the gravitational pull on moon a is the same as the gravitational pull on moon b because distance does not affect the planet's gravity.