Answer:
Seven
Explanation:
The 3 means that you must multiply everything inside the parentheses by 3.
If you write the formula as AlO₃H₃, it is easier to count the atoms.
A:l 1 atom
O: 3
H: <u>3 atoms</u>
7 atoms
There are seven atoms in one formula unit of Al(OH)₃.
the answer to this question would be true just thought u should know lol xd
Answer:
The correct answer is A) Pb(C₂H₃O₂)₂ + Li₂SO₄
Explanation:
- All salts of Na, K and ammonium are soluble.
- All nitrates are soluble.
- All chlorides are soluble, with the exception of AgCl, Hg₂Cl₂, PbCl₂ and CuCl.
- All sulfates are soluble, with the exception of CaSO₄, SrSO₄, BaSO₄, PbSO₄, HgSO₄, Hg₂SO₄ and Ag₂SO₄.
- All hydroxides are poorly soluble, with the exception of alkaline hydroxides, Sr(OH)₂, Ba(OH)₂ and NH4(OH)
- All carbonates are poorly soluble, with the exception of alkaline carbonates and ammonium carbonate.
- All sulfides are poorly soluble, with the exception of alkaline sulfides, alkaline earth sulfides, and ammonium sulfide.
The reaction A is:
Pb(C₂H₃O₂)₂ + Li₂SO₄ ⇒PbSO₄ + 2 LiC₂H₃O₂
Lead sulfate is a slightly soluble solid, therefore it precipitates.
Answer: Option (d) is the correct answer.
Explanation:
When heat is removed from water then there will be decrease in the kinetic energy of water particles. This is because on removing the heat, collisions between the particles will decrease as a result the energy will decrease. Thus, particles will stop moving randomly from one place to another.
Therefore, kinetic energy of the water particles decreases.
<span>The correct answer is photosynthesis. Photosynthesis is the process in plants to make their food. This involves the use carbon dioxide to react with water and make sugar or glucose as the main product and oxygen as a by-product.</span>