Answer:
HI& HNO3= strong acid
H2CO3 &HF= weak acid
LiOH & Ba(OH)2= strong base
CH3NH2= weak base
NH4Cl = weak acid solution
Na3PO4 = weak base solution
Explanation:
HI& HNO3= strong acid because they can dissociate completely producing free Oxonium ions
H2CO3 &HF= weak acid because there dissociate partly in Solution
LiOH & Ba(OH)2= strong base because LiOH is a group one alkali which dissociate completely and Ba(OH)2 a group 2 alkali which dissociate completely as well
CH3NH2= weak base because in solution it dissociates partly forming NH4+ ion
NH4Cl = weak acid solution because it is a salt of strong acid and weak base
Na3PO4 = weak base solution
Because it's a salt of strong base and weak acid
The balanced chemical equation :
NaHCO₃ + HCl → CO₂ + H₂O + NaCl
<h3>Further explanation</h3>
A balanced chemical reaction shows that the number of atoms of the reactant and the number of atoms of the product is the same
When baking soda (NaHCO3) reacts with hydrochloric acid (HCl), carbon dioxide bubbles (CO2) are created, along with water (H2O) and sodium chloride (NaCl) .
This statement shows that
Reactants (located to the left of the reaction)
Baking soda (NaHCO₃) and Hydrochloric acid (HCl)
product (located to the right of the reaction)
Carbon dioxide(CO₂),water (H₂O) and Sodium chloride (NaCl).
So the reaction :
NaHCO₃ + HCl → CO₂ + H₂O + NaCl
4. emit more shortwave radiation than cooler objects do.
Answer:
1. Cu(s) + 2AgNO₃(aq) ⟶ Cu(NO₃)₂(aq) + 2Ag(s)
2. 50.92 g
3. $8.09
Step-by-step explanation:
1. Balanced equation
Cu(s) + 2AgNO₃(aq) ⟶ Cu(NO₃)₂(aq) + 2Ag(s)
===============
2. Mass of Ag
We know we will need a balanced equation with masses and molar masses, so let’s gather all the information in one place.
M_r: 63.55 107.87
Cu + 2AgNO₃ ⟶ Cu(NO₃)₂ + 2Ag
m/g: 15.00
(a) Calculate the moles of Cu
Moles Cu = 15.00 × 1/63.55
Moles Cu = 0.2360 mol Cu
=====
(b) Calculate the moles of Ag
The molar ratio is 2 mol Ag:1 mol H₂O
Moles of Ag = 0.2360 × 2/1
Moles of Ag = 0.4721 mol Ag
======
(c) Calculate the mass of Ag
Mass of Ag = 0.4721 × 107.87
Mass of Ag = 50.92 g Ag
===============
3. Value of Ag
Mass of Ag = 50.92 × 0.0353/1
Mass of Ag = 1.797 oz
Value of Ag = 1.797 ×4.50/1
Value of Ag = $8.09