A2.747 g sample of manganese metal is reacted with excess hcl gas to produce 3.28 l of h2(g) at 374 k and 0.936 atm and a manganese chloride compound (mnclx). what is the formula of the manganese chloride compound produced in the reaction? (type your answer using the format co2 for co2.)

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)

Is laundry detergent an acid or a base?

At the current rate, a graph of carbon dioxide produced by fossil fuels over time would slope upward slope downward be horizontal be vertical