When hydrochloric acid is dissolved in water it produces and ions.

a. h3o+, oh-
b. h2o, cl-
c. oh-, cl-
d. h3o+, cl-

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. but she does have devices to measure distance and time accurately. she knows her own mass is 77.4 kg , but she is unsure of the mass of a large gas canister in the airless rocket. when this canister is approaching her at 3.50 m/s , she pushes against it, which slows it down to 1.30 m/s (but does not reverse it) and gives her a speed of 2.60 m/s . what is the mass of the canister?

Ne way in which elements differ from each other is the structure of the electron cloud in each element's atoms. in an electron cloud, an electron that is farther away from the nucleus has