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frez [133]
3 years ago
6

Please help me balance:_NaNO3 + _PbO_ ➡️ Pb(NO3)2 + _Na2O

Chemistry
1 answer:
KengaRu [80]3 years ago
7 0

Answer:

The balanced reaction is given by,

2NaN(O)3 + PbO ⇒ Pb(NO3)2 + Na2O

Explanation:

The reaction is as given.

Lets count the number of each elements in the reaction.

<em>In reactant side, number of sodium atoms are 1 , lead are 1, nitrogen are 1 and oxygen are 4.</em>

<em>in product side, number of sodium atoms are 2 , lead are 1 , nitrogen are 2 and oxygen are 7.</em>

<em>So we need to balance sodium and oxygen atoms in the reaction.</em>

<em>There is deficient of sodium and oxygen atoms on reactant side</em>.

Thus, multiply (NaNO3) by 2.

<em>Thus, sodium atoms become 2 , nitrogen 2 and oxygen 6. Total 7 oxygen atoms.</em>

Thus, the balanced reaction is,

2NaN(O)3 + PbO ⇒ Pb(NO3)2 + Na2O

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raketka [301]

Answer:

7 hours

Explanation:

627/96=7

7

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6 0
3 years ago
A 0.89% (w/v) sodium chloride solution is referred to as physiological saline solution because it has the sameconcentration of s
elixir [45]

Answer: Molarity of a physiological saline solution is 0.15 M

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

Molarity=\frac{n\times 1000}{V_s}

n = moles of solute

V_s =volume of solution in ml

Given : 0.89 g of sodium chloride in 100 ml of solution.

To calculate the moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}=\frac{0.89g}{58.5g/mol}=0.015moles

Volume of solution = 100 ml

Molarity=\frac{0.015\times 1000}{100ml}=0.15M

Molarity of physiological saline solution is 0.15 M

4 0
4 years ago
Give the number of each type of ion present on each of the ionic compounds formed from the following pairs of ions.
SVETLANKA909090 [29]
The following compounds and the number and type of ions are as follows:

Gold and chloride:

Gold (III) = Au 3+
Chloride = Cl 1-

Calcium and Sulfate:

Calcium Sulfate:

Calcium = Ca 2+
Sulfate = SO4 2-

Magnesium and Hydroxide

Magnesium Hydroxide: Mg(OH)2

Magnesium: Mg 2+
Hydroxide: (OH) 1-

8 0
3 years ago
Read 2 more answers
En el aire, el oxígeno representa el 21%en volumen.
saw5 [17]
Pregunta en guglu ay te ayudara
8 0
3 years ago
18. Does the diagram below represent an exothermic reaction, or an endothermic reaction? Why do you think this? (2 pts) *
EastWind [94]

Answer:

exothermic reaction

Explanation:

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7 0
2 years ago
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