Question

are any of these wrong?? please fix them

Predict the products and write a balanced chemical equation for the following chemical reaction. Include the states of the reactants and products.

1. Pure liquid ethanol, CH3CH2OH is burned in a barbecue.
CH3CH2OH (l) + 3O2 (g)→ 3H2O (g) + 2CO2 (g)
2. aluminum metal is combined with a solution of lead (II) nitrate
2Al (s) + 3Pb(NO3)2 (aq) → 3Pb (s) + 2Al((NO3)3 (aq)
3. aqueous calcium chloride is added to a solution suspected to contain sodium phosphate
3CaCl2 (aq) +2 Na3PO4 (aq) → 6NaCl (s) + Ca3(PO4)2
4. a nitric acid spill is neutralized by a barium hydroxide solution
2HNO3 (aq) + Ba(OH)2(aq) → 2H2O (l) + Ba(NO3)2 (aq)
5. Mercury(II) nitrate is heated to test the law of conservation of mass.
Hg(NO3)2 (s)+ heat → HgO (g) + NO2 (g) + O2 (g)

Answer 1

Answer:

राजनीतिक सिद्धांत का अध्ययन हमारे लिए किन रूपों में उपयोगी है एसएसआर तरीकों की पहचान करें जिनमें राजनीतिक सिद्धांत हमारे लिए उपयोगी हो?

राजनीतिक सिद्धांत का अध्ययन हमारे लिए किन रूपों में उपयोगी है एसएसआर तरीकों की पहचान करें जिनमें राजनीतिक सिद्धांत हमारे लिए उपयोगी हो

hope it helps

Answer 2

A chemical equation is said to be balanced when the number of each type of atom is equal on both sides.

Explanation:

1. When ethanol burn in the presence of oxygen, it produces carbon dioxide along with water. The balanced equation is $C_2H_5OH + 3O_2 \rightarrow 2CO_2 + 3H_2O$
2. The reaction between aluminium and Lead nitrate is an example of a single displacement nitrate. The balanced equation is $2Al + 3Pb(NO_3)_2 \rightarrow 3Pb + 2Al(NO_3)_3$
3. The Balanced equation is $3CaCl_2 + 2Na_3PO_4 \rightarrow Ca_3(PO_4)_2 + 6NaCl$.
4. When nitric acid reacts with barium hydroxide it produces barium nitrate and water. The balanced equation is $2HNO_3+Ba(OH)_2 \rightarrow Ba(NO_3)_2 + H_2O$
5. This equation is not balanced correctly. The balanced equation is $2Hg(NO_3)_2 \xrightarrow{heat} 2HgO + 4NO_2 + O_2$.