Hi there.
Alkali metals are known as the group 1 elements.
When we know this, we just have to look to group 1 of the periodic table.
Rb (Rubidium) is in group 1; it is classified as an alkali metal.
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Answer:
Collision theory states that the rate of a chemical reaction is proportional to the number of collisions between reactant molecules. The more often reactant molecules collide, the more often they react with one another, and the faster the reaction rate.
Answer:
21 electrons
Explanation:
just subtract their atomic numbers since the atomic number has the same amount of electrons as it has protons
Answer:
Let's say you're using joules. In that case, you'd need 153.7kJ.
Answer:
to know the relation between amount of necessary chemical substance.
E.g.
For burning 1 liter of CH4 we need 2 liters of O2 because CH4+2O2=CO2+2H2O
