Chemistry, 23.06.2020 23:01 jamiehorton2000

HELP How much of a 1.0 g polonium-214 sample remains after 818 microseconds? The half life of polonium-214 is 163.7 microseconds.

Answers: 3

Show answers

Other questions on the subject: Chemistry

Chemistry, 22.06.2019 16:30, jrfranckowiak

At 20°c, a sample of h2o liquid and a sample of co2 gas each have the same average kinetic energy. why is one a liquid and the other a gas at this temperature?

Answers: 1

continue

Chemistry, 22.06.2019 18:30, kate3887

When the chemicals iron sulfide (fes) and hydrochloric acid (hcl) are combined, bubbles appear from the mixture. 1. does the appearance of bubbles indicate a physical or chemical change? 2. why do the bubbles indicate this change? 3. what property is this?

Answers: 1

continue

Chemistry, 22.06.2019 23:30, wayneh24

Aweight lifter raises a 1600 n barbell to a height of 2.0 meters. how much work was done? w = fd a) 30 joules b) 3000 joules c) 320 joules d) 3200 joules

Answers: 2

continue

Chemistry, 23.06.2019 04:00, Tiredd7838

Which of these are physical changes in matter? check all that apply boiling water a pencil being sharpened exploding dynamite freezing water rotting cheese

Answers: 1

continue

You know the right answer?

HELP How much of a 1.0 g polonium-214 sample remains after 818 microseconds? The half life of polon...