In the properties of matter case study lab how did the criminals make the coins look gold A) both of these
B) neither of these
C) the coated them with zinc then heated them to make a alloy that looked gold.
D) they painted them with gold paint.​

The density of a substance is 4.0 g/cm3. if a sample of the substance has a volume of 25 cm3 then what is the mass

Avertical clean glass piezometer tube has an inside diameter of d = 1 mm and is used to measure pressure in a horizontal pipe carrying water as shown. due to pressure in the pipe, the water at 20c rises into the tube to a height h. if the water pressure in the pipe is p = 500 pa gauge, estimate the height h: (a) without considering surface tension (b) with surface tension (capillary) effects. the contact angle  can be assumed at 30 deg

If the specific heat of a metal is 0.850 j/g °c, what is its atomic weight?