The total resistance in this circuit is

Chemistry

1 answer:

riadik2000 [5.3K]3 years ago

7 0

<h2>Let us solve for it </h2>

Explanation:

In the given figure we need to find the total resistance and total voltage .

We know that :

In series total R =R1 +R2 ...
In parallel total R formula is : 1/R=1/R1 +1/R2.....

We also know ohm's formula is : V=IR

So, in this circuit : R1=12 ohm

R2=8 ohm

R3=10 ohm

Ammeter reading = 10A

so, they are in series therefore ,

Total R = R1 + R2 +R3

R=12 +10+8=30 ohm

To find voltage we have : V=IR

V =10 x 30=300Volts

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3 years ago

Question 2 of 50

wolverine [178]

The thermal decomposition of calcium carbonate will produce 14 g of calcium oxide. The stoichiometric ratio of calcium carbonate to calcium oxide is 1:1, therefore the number of moles of calcium carbonate decomposed is equal to the number of moles of calcium oxide formed.

Further Explanation:

To solve this problem, follow the steps below:

Write the balanced chemical equation for the given reaction.
Convert the mass of calcium carbonate into moles.
Determine the number of moles of calcium oxide formed by using the stoichiometric ratio for calcium oxide and calcium carbonate based on the coefficient of the chemical equation.
Convert the number of moles of calcium oxide into mass.

Solving the given problem using the steps above:

STEP 1: The balanced chemical equation for the given reaction is:

$CaCO_{3} \rightarrow \ CaO \ + \ CO_{2}$