Chemistry, 12.10.2020 22:01 geunagillis1

Which of the following is a main group element? O Ce
O Co
O Cu
OCs
O none of the above

Answers

Answer from: wardlawshaliyah

The answer is somewhere, u gotta dig deeper like princess and the frog said!

Answer from: Quest

"you start with 15.67 g mgco3-xh2o, when heated and all the water is removed, you are left with 7.58 g mgco3 only.

therefore, you had 15.67 - 7.58 = 8.09g h2o

moles of each :

7.58g mgco3 = ? moles = 7.58g / 83.4g/mole = 0.09moles

8 09g h2o = ? moles = 8.09g / 18g/mole = 0.44moles

molar ratio between the two by dividing both numbers by the smallest number :

0.09 / 0.09 = 1

0.44 / 0.09 = 4.8

mgco3-5h2o"

Answer from: Quest

Dsolubility let me know if you have any other questions for chemistry

Other questions on the subject: Chemistry

Chemistry, 22.06.2019 11:20, Jessicadiaz8602

Sodium nitrite (nano2) reacted with 2−iodooctane to give a mixture of two constitutionally isomeric compounds of molecular formula c8h17no2 in a combined yield of 88%. draw reasonable structures for these two isomers. click the "draw structure" button to launch the drawing utility. place the two compounds in the appropriate boxes below.

Answers: 1

continue

Chemistry, 22.06.2019 14:00, dylan6981

How does the viscosity of magma change as magma cools?

Answers: 2

continue

Chemistry, 23.06.2019 01:00, Johnson926

Which elements are found in glucose, the product of photosynthesis? a. carbon, hydrogen, and oxygen b. carbon and hydrogen c. carbon, nitrogen, and oxygen d. hydrogen, nitrogen, and carbon

Answers: 2

continue

Chemistry, 23.06.2019 06:40, brainewashed11123

What is the neutralization reaction

Answers: 2

continue

You know the right answer?

Which of the following is a main group element? O Ce
O Co
O Cu
OCs
O none o...