Chemistry, 04.05.2021 01:00 poptropic7623

Rb reacts with O in a mole ratio of 2 to 1, forming the ionic compound Rb20. Which of the following elements will react with O in a mole ratio of 2 to 1, forming an ionic compound, and why? A)
S, because it is in the same group as O.

B)
Cs, because it is in the same group as Rb.

C)
Sr, because it is in the same period as Rb.

D)
Br, because the atomic mass of Bris similar to that of Rb.

Answers: 1

Show answers

Other questions on the subject: Chemistry

Chemistry, 22.06.2019 15:20, plssshelp

Draw any one of the skeletal structures of a 2° alkyl bromide having the molecular formula of c6h13br and two stereogenic centers. indicate chirality by using wedge and hashed wedge notation. lone pairs do not need to be shown.

Answers: 1

continue

Chemistry, 22.06.2019 16:00, emma5743

How could a student test the effect of removing heat from a gas that is stored in a sealed container? what must occur in order for matter to change states?

Answers: 2

continue

Chemistry, 22.06.2019 18:10, pearfam98

Given the following at 25c calculate delta hf for hcn (g) at 25c. 2nh3 (g) +3o2 (g) + 2ch4 (g) > 2hcn (g) + 6h2o (g) delta h rxn= -870.8 kj. delta hf=-80.3 kj/mol for nh3 (g), -74.6 kj/mol for ch4, and -241.8 kj/mol for h2o (g)

Answers: 1

continue

Chemistry, 22.06.2019 21:00, rah45

Which of these is an example of pseudoscience? a) predicting the time of sunrise based on data on position of earth b) predicting the date of the moon phases based on data on position of earth c) predicting eclipses based on the position of the sun and the moon d) predicting future events in a person's life based on the position of the moon

Answers: 1

continue

You know the right answer?

Rb reacts with O in a mole ratio of 2 to 1, forming the ionic compound Rb20. Which of the following...