What is the formula for the ionic crystal?

Describe different biomes. what are some adaptations that organisms (plants or animals) must have to live in each biome?

If a rock is thrown upward on the planet mars with a velocity of 12 m/s, its height (in meters) after t seconds is given by h = 12t − 1.86t2. (a) find the velocity of the rock after two seconds. m/s (b) find the velocity of the rock when t = a. 12−3.72a m/s (c) when will the rock hit the surface? (round your answer to one decimal place.) t = s (d) with what velocity will the rock hit the surface? m/s

Which of the following bonds would be most polar? a. c-i b. c-br c. c-cl d. c-f e. c-o