Chemistry, 20.03.2021 06:00 thawngmawi
Suppose the mineral started out with K-40 atoms but no Ar-40. If the mineral now has equal numbers of K-40 and Ar-40 atoms (the ratio is now 1:1), how old is the crystal?
Answers: 1
Chemistry, 21.06.2019 22:30
1. combine iron and copper (ii) sulfate solution. (hint: iron will form the iron (iii) ion) fe + cuso4 → 2. combine lead (ii) nitrate and potassium iodide solutions. pb(no3)2+ kl → 3. combine magnesium metal and hydrochloric acid solution. mg + hcl → 4. electrolysis (splitting) of water. h2o → 5. burning magnesium. mg + o2 →
Answers: 3
Chemistry, 21.06.2019 22:30
What are the charges of the subatomic particles by choosing the answer from the drop down menu. protons have a (+1,0,or-1). (protons,neutrons,electrons) have a 0 charge. 3.) electrons have a (+1,0,-1)
Answers: 2
Chemistry, 22.06.2019 08:00
Match the mixture with the substance// i really need on this guys (it’s a pic btw)
Answers: 1
Suppose the mineral started out with K-40 atoms but no Ar-40. If the mineral now has
equal numbers...
Mathematics, 19.03.2020 09:34
History, 19.03.2020 09:34
Chemistry, 19.03.2020 09:34
History, 19.03.2020 09:34
Biology, 19.03.2020 09:34
Computers and Technology, 19.03.2020 09:34
Mathematics, 19.03.2020 09:34