Answer : Barium sulfate
and Sodium nitrate
are produced during replacement reaction.
Explanation :
Double-displacement reaction : It is a type of chemical reaction in which two reactants exchange ions to form two new compounds.
The Net balanced chemical reaction is ,
This is a double-displacement reaction.
In this reaction, barium nitrate react with the sodium sulfate to produce barium sulfate and sodium nitrate.
Answer: A typical hydrogen fuel cell produces 0.5 V to 0.8 V per cell. To increase the voltage individual cells can be connected in series.
Answer:
The ice and water hit the small rocks and take apart the sediments from it
Explanation:
We know this because of the discovery of fossils and bones. We can find out roughly when they existed because of carbon dating.
Answer:
D) The amount of heat a substance can hold.
Explanation:
Specific heat capacity:
It is the amount of heat required to raise the temperature of one gram of substance by one degree.
Formula:
Q = m.c. ΔT
Q = amount of heat absorbed or released
m = mass of given substance
c = specific heat capacity of substance
ΔT = change in temperature
The substances with higher value of specific heat capacity require more heat to raise the temperature by one degree as compared the substances having low value of specific heat capacity.
For example,
The specific heat capacity of oil is 1.57 j/g. K and for water is 4.18 j/g.K. So, water take a time to increase its temperature by one degree by absorbing more heat while oil will heat up faster by absorbing less amount of heat.
