For an investigation a student records data about four unknown substances. The student then calculates the densities of the unknown substances and compares them with the table of densities of known substances shown below. Which unknown substance is most likely carbon?

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh

Word equation for k(s)+h2o(l) yield koh(aq) + h2(g)

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.