Answer:
Explanation:
The dilution formula is:

Where M₁ and M₂ are the molar concentrations and V₁ and V₂ are the volumes of the concentrated and the diluted solutions.
Substitute:

Clear M₂ and compute:

Answer:
7. .........................
Answer:
limestone+heat=marble
sandstone+heat=metaquartzite
shale+heat=quartzite
Answer: Antoine Lavoisier.
He classified the elements into four groups: elastic fluids, nonmetals, metals and earths. Some of the called elementes were not really elements (light and heat). Others were compounds, e.g. hydrochloric acid.