Day 19: You throw a baseball straight up in the air, it moves
vertically, stops in midair, then falls back down into your hand. Which of Newton’s Laws explains the motion of the ball as it travels through the air and how does this Law explain it?

Newton's first law

Explanation:

An object in motion will remain in motion unless acted upon by a different force. In this case, gravity. Gravity pushes the ball back into your hand after the kinetic energy is used up from throwing the ball.

b. acid is the correct answer @jayxboof all social media

acid : acids are those which accepts an electron-pairs.

base : bases are those which donates ab electron-pairs.

alkali : it is a base that dissolves in water. it is basically a base and the ph greater than 7.

hydroxide ion : it is a poly-atomic ion which is negatively charged.

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.