Question

In: Chemistry

1- How many grams in 2.5 of CO2? 2- How many moles are in 90 grams...

1- How many grams in 2.5 of CO2?

2- How many moles are in 90 grams of C6H12O6?

3 - How many grams of hydrogen are in 2 moles C3H8

4- Identify the groups and period that each elements belongs :
Silicon
Barium
Element number 21
Iodine

5 - What is the maximum electron number that can be contained in following:
A 2s orbital
The 3p subshell
The third shell
A 4d orbital

6 - How many valence electrons are in the following elements
Fluorine
Radon
Rubidium
Aluminum

Solutions

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