Answer:
none of the above
Explanation:
because all of them are unstable
The given reaction is a <u>combination</u> / <u>synthesis</u> reaction, since two reactants combine to form a single product
Answer:
D. can control the transport of small molecules and ions.
Explanation:
Bilayers are critical components of cell membranes. The lipid bilayer acts as a barrier to the passage of molecules and ions into and out of the cell. However, an important function of the cell membrane is to allow selective passage of certain substances into and out of cells.
The lipid bilayers are highly permeable to non-polar (fat-soluble) molecules. The permeability of the bilayers to polar (water soluble) molecules is very low, and the permeability is particularly low to large polar molecules. The permeability to charged molecular species (ions) is very low.
Answer:
2.89× 10²³ atom of Zn
Explanation:
Given data:
Number of moles of Zn = 0.48 mol
Number of atoms of Zn = ?
Solution:
Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance. The number 6.022 × 10²³ is called Avogadro number.
1 mole = 6.022 × 10²³ atom
0.48 mol × 6.022 × 10²³ atom / 1mol
2.89× 10²³ atom