Chemistry, 05.10.2019 13:00 salvadorperez26
Why is 14c dating a good method to use for dating a human leg bone but not so good a method for dating a dinosaur bone? you may have to check the dates of the existence of humans and dinosaurs on earth on a chart showing the geological eras?
Answers: 1
Chemistry, 22.06.2019 14:20
You have a liquid that exhibits diltancy. you want to pour it from a bottle. what should you do to the bottle before pouring
Answers: 1
Chemistry, 22.06.2019 17:10
Acalorimeter is to be calibrated: 51.203 g of water at 55.2 degree c is added to a calorimeter containing 49.783 g of water at 23.5c. after stirring and waiting for the system to equilibrate, the final temperature reached is 37.6 degree c. specific heat capacity of water (s = 4.18 j/g∙degree c). calculate the calorimeter constant. (smδt)warm water = -[(smδt)cold water + (calorimeterδtcold water)]
Answers: 2
Chemistry, 22.06.2019 22:00
All of the following are homogeneous mixtures except a) sugar dissolved in water. b) orange juice. c) coffee with cream. d) household vinegar. e) apple juice
Answers: 1
Chemistry, 23.06.2019 17:10
Two changes are described below. a green banana turns yellow and ripens. a layer of rust forms on an iron nail. which statement is true about the two changes? a) both are chemical changes because new substances are formed. b) both are physical changes because only the physical state of the substances change. c) a is a physical change due to a change of state, but b is a chemical change because new molecules are formed. d) a is a chemical change due to a change of state, but b is a physical change because new molecules are formed.
Answers: 3
Why is 14c dating a good method to use for dating a human leg bone but not so good a method for dati...
Computers and Technology, 26.07.2019 15:30
Mathematics, 26.07.2019 15:30
Business, 26.07.2019 15:30
History, 26.07.2019 15:30
Mathematics, 26.07.2019 15:30
Business, 26.07.2019 15:30
English, 26.07.2019 15:30
History, 26.07.2019 15:30