Answer:
2.The cooling effects of more indirect sunlight cause autumn and winter. Because of the Earth's approximately 23.5º tilt, the seasons in the Northern and Southern Hemispheres are reversed, about six months apart from each other.
3.In North America, around June 21, Earth tilts on its axis toward the Sun. That means that at the northern summer solstice, North America will experience summer, and winter will start in in the Southern Hemisphere. Winter Solstice. Around December 21, the Northern Hemisphere tilts the farthest away from the Sun.
Explanation:
Answer:
0.2 moles, assuming weight of dried salt
Explanation:
In order to determine the number of moles, we need to be aware of the mass of the substance in question.
Assuming the mass of the dehydrated 
is 50g.
No. of moles = mass of substance/ molar mass of the substance.
= 
= 0.2 moles moles.
Answer:
The SI system , also called theatrics system, is used around the world
Answer:
Explanation:
pH = 12
[H⁺] = 10⁻¹²
[OH⁻¹ ] [H⁺] = 10⁻¹⁴
[OH⁻¹ ] = 10⁻²
NaOH = Na⁺¹ + OH⁻¹
NaOH is a strong base so it dissociates 100%
[OH⁻¹ ] = 10⁻²
molarity of NaOH = 10⁻² M
= .01 M .
6.32 KJ is how much heat is given off
