Chemistry, 03.12.2020 01:50 toolazytobehuman
What is the molarity of a solution prepared by dissolving 54.3 g of Calcium nitrate into 355 mL of water?
Answers: 3
Chemistry, 22.06.2019 06:30
Use examples from the article to explain one positive and one negative effect that chemistry has had on society.
Answers: 2
Chemistry, 22.06.2019 16:50
Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.
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 18:00
Alidded glass container is filled with a colored gas. after a period of time, it is observed that the gas is uniformly spread throughout the box and that the movement has slowed considerably. next, a warm iron plate is carefully placed under the box. why is there resumed movement of the gas in the container?
Answers: 2
What is the molarity of a solution prepared by dissolving 54.3 g of Calcium nitrate
into 355 mL of...
Mathematics, 31.10.2019 21:31
Health, 31.10.2019 21:31
History, 31.10.2019 21:31
Social Studies, 31.10.2019 21:31
History, 31.10.2019 21:31
French, 31.10.2019 21:31
English, 31.10.2019 21:31
English, 31.10.2019 21:31
Mathematics, 31.10.2019 21:31
Mathematics, 31.10.2019 21:31