What else is produced during the replacement reaction of magnesium and hydrochloric acid? Mg + 2HCl H2 +

MgCl2
Mg2Cl2
Mg2Cl
MgCl

(2) (a) you have a simple circuit that consists of only a battery (δvbat=1.5v) and two resistors with resistance r1=10ω and r2=5ω, connected in series with each other. what is the current running through the battery? (b) you re-arrange your circuit so now r2 is attached in parallel to r1 rather than in series. what is the current running through the battery? (c) you add an additional resistor r3=7ω on the same branch as r2. what is the current running through the battery? (d) what is the power dissipated in r3?

What distance does a car travel as its speed changes from 0 to 20 m/s in 17 s at constant acceleration?

State the below theories and give the name of the writer of the theory 1. wave theory 2. quantum theory 3. corpuscular theory 4. electromagnetic theory