Answer:
b 13kg/m³ is the answer to this question
Answer: a,b
Explanation: because a scientific theory is something that been thought of and tested multiple times.
a chemical property of iron is the ability to change it, hammer it, roll it, shape it etc
I don’t really know but I’ll get someone to help u
Mole - one of the most important concepts in chemistry - is a kind of link to go from the microworld of atoms and molecules in a normal macrocosm grams and kilograms.
In chemistry often have to consider large numbers of atoms and molecules. For fast and efficient calculation made using the weighing method. But it is necessary to know the weight of individual atoms and molecules. In order to identify the molecular weight must be added the weight of all atoms in the compound.
