Answer:
the amount of soduim phosphate is will be 52 percemt
2 shells because if you do the electronic configuration:
2,7 which adds up to 9
7 stands for the group it in and it also stands for how many electrons are in the outer shell.
the amount of spaces stands for which period its in therefore it in period 2
If a lightbulb is powered by something like a C battery, the chemical energy from the battery acid is transformed into light and heat energy in the lightbulb. If it's powered by a potato (a common science project for kids) the stored chemical energy that the potato gets from sunlight does the same thing as the acid.
Question 1
The topmost layer of the rock would be layer B I think because its the most recent layer
Question 2
The answer should be "Organism X existed for a short period of time" because the other ones dont make sense and maybe if it existed for a short period of time there would be less fossils of it in the rock.
Question 3
The answer should be C because if it is next to the fossil that would mean it existed when the fossil did.
Question 4
I think the answer is radioactive dating because radioactive dating is a technique used to date materials such as rocks or carbon.
Answer:
7 Images
Explanation:
n = 360 / a - 1 = 360 / 45 - 1 = 8-1= 7
(Based on multiple reflections)
I hope im right!!
