HCl+Mg(OH)2 ->MgCl2+H2O. What type of bonds (ionic or covalent) make-up the compounds in the reaction? Give reasoning for each bond.

Use the right-hand rule for magnetic force to determine the charge on the moving particle. this is a charge.

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 component of the earth’s atmosphere is decreased due to photosynthesis?