Chemistry, 29.07.2019 20:30 sipstick9411
Which of the following is true about an atom of iron and an atom of copper? 1 they have different masses. 2 both have the same properties. 3 they have an equal number of protons. 4 both have different types of sub-atomic particles.
Answers: 1
Chemistry, 23.06.2019 00:00, PlzNoToxicBan
What is the pressure of 0.500 moles of carbon dioxide gas in a 2.5 l tank and at a temperature of 301 k? (r=0.0821 l·atm/mol·k) 3.08 atm 1.2 atm 0.23 atm 4.01 atm 4.94 atm
Answers: 1
Chemistry, 23.06.2019 04:40, twinchristiansp4xhd2
6) (a) calculate the absorbance of the solution if its concentration is 0.0278 m and its molar extinction coefficient is 35.9 l/(mol cm). the depth of the cell is 5 mm. (b) what is the %t? (7) calculate the absorbance of the solution if the transmitted light intensity is 70% of the initial light beam intensity
Answers: 1
Which of the following is true about an atom of iron and an atom of copper? 1 they have different m...
History, 30.07.2019 02:50
History, 30.07.2019 02:50