Answer:
three valence electrons
Explanation:
Gallium has three electrons in the outer energy level and therefore has three valence electrons. The identification of valence electrons is vital because the chemical behavior of an element is determined primarily by the arrangement of the electrons in the valence shell.
Find a fruit you think is the one that contains the most vitamin C.
For example: kiwi
Answer: I hypothesize that kiwi contains the most vitamin C
Then after that you test your hypothesis by comparing fruit that contains vitamin C in an experiment.
Answer:
We say that the solution is unsaturated.
Explanation:
If the salt solubility is 36 g in 0.1 L of water then we can dissolve 360 g of salt in 1 L of water.
Because the solution contains 200 g of salt in 1 L of water, the solution is unsaturated because more salt can be added until we reach the saturation point.
We call the solution dilute when we compare the concentration of a solution with the concentration of another solution, but here we do not compare different solutions.
Answer:
Time of vaporization = 0.588 minutes
Explanation:
The latent heat of fusion is the heat required to change the substance from solid (ice) to liquid completely, without further increase in temperature.
The latent heat of vaporization is the heat required to change a liquid to gas completely, without an increase in temperature.
Latent heat of vaporization = 6.8 times Latent heat of fusion
This means that the time it takes for the latent heat of vaporization to complete vaporization is 6.8 times lesser than the time it takes for the latent heat of fusion to complete fusion
Time of vaporization = 6.8 times lesser than time of fusion
Time of vaporization = (time of fusion) ÷ 6.8
where: Time of fusion = 4 minutes
∴ Time of vaporization = 4 ÷ 6.8
Time of vaporization = 0.588 minutes