Metals usually become cations since electrons are negatively charged and when they are lost there are more protons than electrons making a positive net charge in the atom. (cations are positively charged ions while anions are negatively charged ions)
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Answer: 600°C
Explanation:
This reaction is explained by Charles' law as the pressure is constant.
From the question, we obtained:
V1 = 67mL
T1 = 18°C = 18 +273 = 291K
V2 = 3V1 ( Vol is tripled) = 3x67 = 201mL
T2 =?
Applying the Charles' law,
V1 /T1 = V2 /T2
67/291 = 201 / T2
Cross multiply to express in linear form.
67xT2 = 291x201
Divide both side by 67, we have:
T2 = (291x201) /67
T2 = 873K
Converting to Celsius temperature, we have
T°C = K — 273
T°C = 873 — 273 = 600°C
<u>Given:</u>
Force acting on the car moving it to the right = F1= 300 N
Force due to friction and air resistance moving it to the left = F2 = 150 N
<u>To determine:</u>
The net force on the car
<u>Explanation:</u>
Force is a vector. The force of friction acts in a direction opposite to the applied force.
If, F1 = 300N, right, then F2 = -150 N, left
Therefore, the net force acting on the car will be:
F = F1+F2 = 300 - 150 = 150 N
<u>Ans</u>: Since the force acting on the right is greater, the car will experience a net force of 150 N which will accelerate it to the right
