What would you predict about a chemical that has a hydrogen ion concentration of 1 × 10−12 m?

it will form salt and water when added to a base.
it contains no hydroxide ions.
it has high concentration of hydroxide ions.
it has a sour taste.

Aperson standing in a canoe exerts a force of 700 n to throw an anchor over the side. find the acceleration of the canoe if the total mass of the canoe and the person is 100 kg?

What is the force that opposes motion and works against the downward pull? a) friction b) gravity c) weight d) acceleration

Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?