Chemistry, 08.04.2020 20:40, osmarirodriguez1163

The burial cloth of an egyptian mummy is estimated to contain 60% of the carbon-14 it contained originally. how long ago was the mummy buried? (the half-life of carbon-14 is 5730 years

Answers: 3

Show answers

Other questions on the subject: Chemistry

Chemistry, 22.06.2019 08:30, omoaye

Identify one disadvantage to each of the following models of electron configuration: -dot structures -arrow and line diagrams -written electron configurations type in your answer below. (answer) -dot structures do not show the distribution of electrons in orbitals and take up a lot of space. -arrow and line diagrams take up a lot of space and make it difficult to count electrons. -written configurations make it easy to lose count of electrons and do not show the distribution of electrons in orbitals.

Answers: 3

continue

Chemistry, 22.06.2019 17:30, nijanicole164

A650 ml sodium bromine solution has a bromide ion concentration of 0.245 m. what is the mass (g) of sodium bromide in solution? a) 103.b)0.00155.c)16400.d) 16.4.e) 0.159

Answers: 2

continue

Chemistry, 22.06.2019 17:30, llamasking

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)

Answers: 2

continue

Chemistry, 22.06.2019 20:00, 20calzoy

There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. in the first step, calcium carbide and water react to form acetylene and calcium hydroxide: cac2 (s) + 2h2o (g) → c2h2 (g) + caoh2 (s) =δh−414.kj in the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6c2h2 (g) + 3co2 (g) + 4h2o (g) → 5ch2chco2h (g) =δh132.kj calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. round your answer to the nearest kj .

Answers: 3

continue

Do you know the correct answer?

The burial cloth of an egyptian mummy is estimated to contain 60% of the carbon-14 it contained orig...