Chemistry, 13.07.2019 12:00, angellll4455

Which property of argon makes it useful for potassium-argon dating? a. it decays into potassium. b. it is an unstable element. c. it remains trapped in rock. d. it is useful only for dating newer rock.

Answers: 1

Show answers

Other questions on the subject: Chemistry

Chemistry, 22.06.2019 05:00, foreignking02

1)each group 16 element has how many valence electrons? ( )4 ( )6 ( )8 ( )16 2)how many dots appear in the dot structure for calcium ion, ca2+? ( )zero ( )one ( )two ( )eight 3) which of the following atoms forms a cation to obtain an octet of outer shell electrons? ( )magnesium ( )oxygen ( )fluorine ( )helium 4) an al3+ ion contains 13 protons and 10 electrons. ( )true ( )false 5) valence and non-valence electrons are represented in lewis dot structures. ( )true ( )false

Answers: 3

continue

Chemistry, 22.06.2019 09:00, hellodarkness14

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

Answers: 3

continue

Chemistry, 22.06.2019 09:00, yogibear5806

Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.

Answers: 2

continue

Chemistry, 22.06.2019 10:10, babyphoraaaaa

For the reaction, 4 a(g) + 3 b(g) => 2 c(g), the following data were obtained at constant temperature. experiment initial[a],mol/l initial [b],mol/l initial rate, m/min 1 0.200 0.150 5.00 2 0.400 0.150 10.0 3 0.200 0.300 10.0 4 0.400 0.300 20.0 which of the following is the correct rate law for the reaction? 1. rate = k[a]2[b]2 2. rate = k[a][b] 3. rate = k[a]2[b] 4. rate = k[a][b]2

Answers: 3

continue

Do you know the correct answer?

Which property of argon makes it useful for potassium-argon dating? a. it decays into potassium. b....