Answer:
The answer to your question is: 52.92 g of CuNO₃
Explanation:
Data
grams of CuNO₃ = ?
volume = 1 l
concentration = 0.420 M
MW of CuNO₃ = 64 + 14 + 3(16) = 126 g
Formula
Molarity = moles / volume
moles = Molarity x volume
moles = 0.420 x 1
moles = 0.420 moles
1 mol of CuNO₃ ------------------- 126 g of CuNO₃
0.420 moles CuNO₃ ------------- x
x = (0.420 x 126) / 1
x = 52.92 g of CuNO₃
Answer:
I think C option ✔️ ✔️ correct
Exothermic:
An Exothermic reaction is a chemical reaction that expels energy in the form of heat/light. Everything a Endothermic does not do. Pretty simple for this one
reactants → products + energy.
For future reference - Exo means release, thermic means heat.
<u>Energy is a Reactant </u>
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<u>_________________________________________________________</u>
Endothermic:
An Endothermic reaction essentially is draining the heat energy from anything its its surroundings. Usually its just heat but can also be salt dissolving it water or ice melting. Another example would be frost on your windshield evaporating.
It is the exact opposite of an Exothermic reaction.
<u>Energy is a Product</u>
Answer:
1. Because the rules will keep you safe it prevents you from getting hurt.
2.i) don't taste chemical
ii) Always wear protective gears
iii) be careful with tool
iv) wear protective gloves
Explanation:
help everyone get out quickly
Answer:
Convection currents are caused by the movement of the magma in the mantle.
Explanation: