Answer:
Groups 1, 2, 13-18
Explanation:
The periodic table is divided into two broad categories: Main Group Elements and Transition Metals. The Main Group Elements include the alkali metals, alkaline earth metals, halogens, noble gases, and any groups not mentioned (see the answer).
Answer:
Number of moles = 0.05 mol
Explanation:
Given data:
Mass of Pb = 10.5 g
Number of moles of Pb = ?
Solution:
Formula:
Number of moles = mass/molar mass
Molar mass of Pb is 207.2 g/mol.
Now we will put the values in formula.
Number of moles = 10.5 g/207.2 g/mol
Number of moles = 0.05 mol
Maybe Sugar I did that question before I think.
Explanation:
Hallucinogen, substance that produces psychological effects that tend to be associated with phenomena such as dreams or religious exaltation or with mental disorders such as schizophrenia.