Akira records the speed of a reaction, first without a catalyst, and then with a catalyst
answer choices
asking a question
performing an investigation
collecting data
providing explanations
communicating results

Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. density

Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife

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.