Answer:
K^+(aq) + Br^-(aq) -----> KBr(aq)
Explanation:
The net ionic equation shows the actual reaction that occurs in the system. The molecular reaction equation includes the spectator ions but the net ionic equation does not include the spectator ions.
Spectator ions do not participate in the main reaction going on in the system.
Hence, for the reaction of potassium hydroxide and ammonium bromide, we have;
K^+(aq) + Br^-(aq) -----> KBr(aq)
Answer:
64,433.6 Joules
Explanation:
<u>We are given</u>;
- Volume of water as 220 mL
- Initial temperature as 30°C
- Final temperature as 100°C
- Specific heat capacity of water as 4.184 J/g°C
We are required to calculate the amount of heat required to raise the temperature.
- We know that amount of heat is calculated by;
Q = mcΔT , where m is the mass, c is the specific heat, ΔT is the change in temperature.
Density of water is 1 g/mL
Thus, mass of water is 220 g
ΔT = 100°C - 30°C
= 70°C
Therefore;
Amount of heat, Q = 220g × 4.184 J/g°C × 70°C
= 64,433.6 Joules
Thus, the amount of heat required to raise the temperature of water is 64,433.6 Joules
You could identify a physical property of a substance before you performed the activity because the characteristics of a material known as its physical qualities are those that may be investigated independently of the substance's chemical makeup.
This is further explained below.
<h3>What is
physical property?</h3>
Generally, Any attribute that can be measured and has a value that can be used to describe the state of a physical system is considered to be a physical property.
In conclusion, The changes that take place in a system's physical attributes may be utilized to provide a description of the transitions that take place between its momentary states.
Read more about physical property
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Answer:
Hey mate...
Explanation:
This is ur answer....
<h3>Effervescence</h3>
<em>Effervescence is the escape of gas from an aqueous solution and the foaming or fizzing that results from that release.</em>
Hope it helps!
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