Answer:
they are single cells that lack a nucleus and tend to live in extreme conditions.- B.
Answer is: <span>1.0 mol X left over.
</span>Chemical reaction: X + 2Y → XY₂.
n(X) = 3,0 mol, excess reactant.
n(Y) = 4,0 mol, limiting reagent.
n - amount of substance.
from reaction: n(X) : n(Y) = 1 : 2.
n(X) : 4 mol = 1 : 2.
n(X) = 2 mol, that reacts.
excess of X: 3 mol - 2 mol = 1 mol.
I don’t see any pictures of answer choices! Ah i’m sorry! :)
Step by step explanation:
Answer:
12 hydrogen atoms are present.
Explanation:
The hydrocarbon is an alkane as it contains single covalent bonds.
The first carbon attaches to 3 hydrogen atoms, the second to fourth carbon attaches to 2 hydrogen atoms each and the last (fifth) carbon have 3 hydrogen atoms.
The Alkane compound is called PENTANE with molecular formula C5H12.
Answer:
evaporation occurs when sunlight warms the surface of the water. The heat from the sun makes the water molecules move faster and faster, until they move so fast they escape as a gas
