C) During chemical reaction, total mass remains the same.
This is because due to the law of conservation of mass, stating that in a chemical reaction, neither mass will be created nor destroyed. So, the total mass will not change when chemical reactions occur.
Answer:
I believe the answer is frequency
Hope this helps!! (let me know if it is right)
Explanation:
Answer:
Explanation:
The sensor contains an LDR which has a resistance of 10kohlms in daylight and 100kohlms in the dark.
If the resistor in the circuit is 1 megaohlm, the total resistance in daylight and darkness will be 1.01 megaohms and 1.1 megaohlms.
The percentage difference = (1.1-1.01)/1.1*100% = 8.18%
If the resistor in the circuit is 25 kohlm, the total resistance in daylight and darkness will be 35 kohms and 125 kohlms.
The percentage difference = (125-35)/125*100% = 72%
With the input p.d to the sensing circuit fixed at 12 v, the sensing current will change according to the total resistance. A 72% difference is much more detectable. So the 25 kohm resistor is the better choice.
Answer:
<em>Percentage error = 2.63%</em>
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Explanation:
We are given the following
Original volume = 15.20mL
Student measurement = 14.8mL
Error = 15.20-14.80
Error = 0.40mL
percentage = Error/Original volume * 100
Percentage error = 0.4/15.20 * 100
Percentage error = 40/15.20
<em>Percentage error = 2.63%</em>
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Because ice is less dense than liquid water,
its melting point is lowered under high pressures.
A long standing theory says that this is what causes ice to be slippery:
As you step on it, the pressure of your weight causes the top layer to my into water.
