Extrusive Rocks. Igneous rocks which form by the crystallization of magma at the surface of the Earth are called extrusive rocks. They are characterized by fine-grained textures because their rapid cooling at or near the surface did not provide enough time for large crystals to grow.
Answer:
A.) A cinder cone vocano
Explanation:
Cinder cone volcanos give off more ash, rather then an explosion, hense the name "cinder cone".
Answer:
Explanation:
The answer is B because looking at a map, tundra is at 60 and 70 degrees north. Also, the tundra is cold, and the other answers are hot places.
Answer:
A
Explanation:
A difference in thermal energy
The reaction equation is:
Zn + Pb(NO₃)₂ → Pb + Zn(NO₃)₂
The moles of lead are calculated using:
moles = concentration x volume
moles = 0.25 x 0.15
moles = 0.0375
The moles of zinc are: 1 / 65 = 0.015
We see from the equation that equimolar quantities of zinc and lead should be present. Therefore, lead is in excess and zinc is the limiting reactant.
