Leetha had been learning about volcanoes and how they form, but she wanted to know more about hot spots. How does a hot spot form a chain of volcanoes?
A. A hot spot moves under the plate as the plate continues moving
В.
A hot spot remains in a fixed place in the mantle, but the plate continues moving
С
The mantle is continuously moving, and the hot spot moves in the opposite direction
D
The crust is constantly moving, but at a slower pace than the hotspot.

1. 1 mole of anything contains 6.022x10^23 pieces  

d  

2. a  

3. c, number  

5. 1.24x10^24atoms / 6.022x10^23atoms/mole = 2moles h2 atoms  

6. fe2br3 mass = 2moles x mass fe + 3 moles x mass br  

molar mass = grams / number of moles = g/mole  

to find moles = g / molar mass  

to find mass = g = molar mass / moles

3

explanation:

space exploration has led to the development and technological improvement of many everyday items. (if this answer is wrong i will find the right answer) : )