What is the amount of ca3(po4)2 that can be prepared from a mixture of 9g of ca(oh) 2 and 11g of h3po4?

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)

Select all of the methods through which a drug can enter your body. injection swallowing inhalation absorption

The diagram below shows the different phase transitions that occur in matter. which arrow represents the transition in which dew is formed?