Answer:
There are several things you can do at home to help reduce your impact on the environment
.
Eat less beef and pork. ...
Think about packaging before you buy products. ...
Turn off lights and other electrical devices when you don't need them. ...
Do not waste water.
Recycle.
C₃H₈ + 5 O₂ → 3 CO₂ + 4 H₂O + heat
Explanation:
When Sean cook meals with propane he use a combustion reaction:
C₃H₈ + 5 O₂ → 3 CO₂ + 4 H₂O + heat
When propane (C₃H₈) is reacted with oxygen (O₂) produces carbon dioxide (CO₂), water (H₂O) and heat.
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combustion reaction
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The energy that was released by the candy is calculates using the below formula
Q=Mc delta T
Q= heat energy
m= mass (500g)
C= specific heat capacity) = 4.18 j/g/c
delta t =change in temperature = 25- 21 = 4 c
Q= 500 g x 4.18 j/g/c x 4c = 8360 j
Answer:
K₂Cr₂O₇(s) ⇒ 2 K⁺(aq) + Cr₂O₇²⁻(aq)
Explanation:
Potassium dichromate (K₂Cr₂O₇) is a strong electrolyte, that is, when dissolved in water (the medium), it dissociates in cation potassium (K⁺) and anion dichromate (Cr₂O₇²⁻). The balanced dissociation equation is:
K₂Cr₂O₇(s) ⇒ 2 K⁺(aq) + Cr₂O₇²⁻(aq)
