The answer is A. Mixtures can be separated by physical means
A pure substance cannot be separated.
Answer:
Gay-Lussac's law states that in a closed system of fixed volume, as the temp and the pressure of the gas increases.
Explanation:
Temperature is a measure of the average kinetic energy of a substance. As the temp of a substance rises, its molecules are moving faster
Grams (g) is much lighter than kilograms (kg)
In 2009, the US Geological Survey estimated the Arctic may be home to 30% of the planet's natural gas reserves and 13% of oil.
Answer: Ionic substances would be good conductors since they dissolve in water and form ions.
Explanation:
Conductors can be defined as those materials which can allow the electricity to flow through them. The conductors also allow the transmission of heat and light from one to another source. They conduct electricity by allowing the electrons to flow through them easily.
The ionic substances can be good conductors because these can be dissolved in water and they will produce ions. The positively-charged ions will be attracted towards the negative electrode whereas the negatively charged ions to the positive electrode.
