Explanation:
Chlorine atom has an atomic number of 17
Electronic configuration
Cl = 1s2 2s2 2p6 3s2 3p5
Cl- = 1s2 2s2 2p6 3s2 3p6
Soduim atom has an atomic number of 11
Electronic configuration
Na = 1s2 2s2 2p6 3s1
Na+ = 1s2 2s2 2p6
Calcium atom has an atomic number of 20
Electronic configuration
Ca = 1s2 2s2 2p6 3s2 3p6 4s2
Ca2+ = 1s2 2s2 2p6 3s2 3p6
The structure that helps these organisms in hypotonic environments is the contractile vacuole.
As water enters the cell from the less-solute environment, the cell would normally burst; however, the contractile vacuole takes up this water and pumps it back out of the cell.
Answer:
Zn+2HCl→ZnCl2+H2
Explanation:
Hydrogen gas is prepared in the laboratory by reacting dilute HCl with granulated zinc.
Answer:
Copper, gold, silver, etc.
Explanation:
Most metals are ductile. Ductile just means that it can be hammered or stretched into wire without breaking; metals can do this and are great conductors of electric current
I believe its A! sugar crystals gently recovered.