Chemistry, 16.12.2020 01:00 rachelsweeney10
Using a jar with a tight fitting lid, a student mixes 2.0 grams of calcium metal and 100 mL of water, the lid is placed on the bottle. The calcium dissolves and gas bubbles rise to the surface of the liquid. What do you predict has happened to the mass of the material inside the jar?
a. The mass has decreased
b. The mass has increased
c. The mass is now 98 grams
d. The mass has not changed
Answers: 1
Chemistry, 22.06.2019 11:00
Which element would mostly likely have an electron affinity measuring closest to zero
Answers: 3
Chemistry, 22.06.2019 13:30
Ants live on acacia trees in south america. the ants feed on sugars secreted by the trees. the trees provide room for the ants to live. the ants sting any other insect or animal that comes to eat the trees. what type of relationship is this?
Answers: 1
Chemistry, 22.06.2019 19:10
Astudent completes a titration by adding 12.0 milliliters of naoh(aq) of unknown concentration to 16.0 milliliters of 0.15 m hcl(aq). what is the molar concentration of the naoh(aq)? 1)5.0 m 2)0.20 m 3)0.11 m 4)1.1 m
Answers: 1
Chemistry, 22.06.2019 20:00
What is the molarity of the solution produced when 145 g of nacl is dissolved in sufficient water to prepare 2.75 l of solution?
Answers: 1
Using a jar with a tight fitting lid, a student mixes 2.0 grams of calcium metal and 100 mL of water...
Mathematics, 19.05.2021 14:00
Health, 19.05.2021 14:00
Mathematics, 19.05.2021 14:00
Computers and Technology, 19.05.2021 14:00
Physics, 19.05.2021 14:00
Mathematics, 19.05.2021 14:00
English, 19.05.2021 14:00
Mathematics, 19.05.2021 14:00
English, 19.05.2021 14:00
Mathematics, 19.05.2021 14:00