In which situation is the speed of the car constant while its velocity is changing?

If the same amount of cacl2 is added to equal volumes of water and maple syrup, which will have the higher temperature?

Asample of silver (with work function ? = 4.52 ev) is exposed to an ultraviolet light source (? = 200 nm), which results in the ejection of photoelectrons. what changes will be observed if: silver is replaced with copper (? = 5.10 ev) more photoelectrons ejected no photoelectrons are emitted fewer photoelectrons ejected more energetic photoelectrons (on average) less energetic photoelectrons (on average)

How many molecules are found in 1.32 mol of nacl?