Chemistry, 24.03.2020 14:33 yesseniaroman21
Pure substance x is a green powder. when heated, it gives off a gas and changes to a black powder. is substance x an element or a compound? give reasons
Answers: 2
Chemistry, 22.06.2019 13:30
What are the chemical names of these compounds? ke: mg3n2: reset next
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Chemistry, 22.06.2019 14:00
What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?
Answers: 2
Chemistry, 22.06.2019 19:00
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.
Answers: 1
Pure substance x is a green powder. when heated, it gives off a gas and changes to a black powder. i...
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