Chemistry, 05.12.2020 14:00, chanteeaston9461
Ash remains from an ancient fire pit was discovered to have only 12.5% of the
original Carbon-14 it once contained. If the half-life of Carbon-14 is 5,730 years,
how long ago was this pit used? Show or describe how you solved this. *

Answers: 2
Chemistry, 22.06.2019 15:00, MilanPatel
How is the shape of the poem “peer” connected to its meaning?
Answers: 2
Chemistry, 23.06.2019 10:30, krlx
When a chemist collects hydrogen gas over water, she ends up with a mixture of hydrogen and water vapor in her collecting bottle. if the pressure in the collecting bottle is 97.1 kilopascals and the vapor pressure of the water is 3.2 kilopascals, what is the partial pressure of the hydrogen?
Answers: 1
Chemistry, 23.06.2019 11:00, artiomtyler007
Find the enthalpy of neutralization of hcl and naoh. 87 cm3 of 1.6 mol dm-3 hydrochloric acid was neutralized by 87 cm3 of 1.6 mol dm-3 naoh. the temperature rose from 298 k to 317.4 k. the specific heat capacity is the same as water, 4.18 j/k g. a. -101.37 kj b. 7055 kj c. 10,1365 kj
Answers: 1
Chemistry, 23.06.2019 13:30, michelle8978
Why hydrochloric acid neutralized first when you titrate a mixture of hcl& ch3cooh against standard sodium hydroxide
Answers: 1
Ash remains from an ancient fire pit was discovered to have only 12.5% of the
original Carbon-14 it...
History, 04.03.2021 01:50
Chemistry, 04.03.2021 01:50
Mathematics, 04.03.2021 01:50
Mathematics, 04.03.2021 01:50