Cho 8g magie oxit tác dụng vừa đủ với dung dịch axit clohidric 7,3% . Hãy tính nồng độ phần trăm của chất có trong dung dịch sau phản ứng

Can someone me with 6 to 10 plz this is for masteries test.

Two people each hold the end of a rope and create waves by moving their arms up and down. this wave is best classified as a transverse wave because a) both the rope particles and the wave are moving in the same direction. b) the wave is moving up and down as the particles of the rope move horizontally. c) the wave is moving horizontally as the particles of the rope move up and down. eliminate d) the wave is moving in a parallel direction with the motion of the person's arms.

What is the oxidation state of an individual bromine atom in nabro3?