Answer:
The final temperature was 612 °C
Explanation:
Charles's law relates the volume and temperature of a certain amount of ideal gas, maintained at a constant pressure, using a constant of direct proportionality. In this law, Charles says that at constant pressure, as the temperature increases, the volume of the gas increases and as the temperature decreases, the volume of the gas decreases. That is, Charles's law is a law that says that when the amount of gas and pressure are kept constant, the ratio between volume and temperature will always have the same value:
When you want to study two different states, an initial and a final one of a gas and evaluate the change in volume as a function of temperature or vice versa, you can use the expression:
In this case:
- V1= 5.76 L
- T1= 22 °C= 295 °K (Being 0°C=273°K)
- V2=17.28 L
- T2=?
Replacing:
Solving:
T2= 885 °K = 612 °C
<u><em>The final temperature was 612 °C</em></u>
The SI unit for amount of substance is the mole. It has the unit symbol mol. <span>The mole is defined as the amount of substance that contains an equal number of elementary entities as there are atoms in 12g of the </span>isotope carbon-12<span>.</span>
Answer:
0.6364 g/cm^3
Explanation:
Density = mass/volume
Where mass = 5.6g and...
Volume = (33.9 - 25.1) = 8.8ml
Where 1ml = 1 cm^3
Density = 5.6/8.8 = 0.6364 g/cm^3
Explanation:
(a) The given reaction equation is as follows.
(acidic)
So, here the reduction and oxidation-half reactions will be as follows.
Oxidation-half reaction: 
Reduction-half-reaction: 
As total charge present on reactant side is -1 and total charge present on product side is +3. And, since it is present in aqueous medium. Hence, we will balance the charge for this reaction equation as follows.
(acidic)
(b) The given reaction equation is as follows.
(basic)
So, here the reduction and oxidation-half reactions will be as follows.
Reduction-half reaction: 
Oxidation-half reaction: 
Hence, to balance the number of electrons in this equation we multiply it by 4 as follows.
Therefore, balancing the whole reaction equation in the basic medium as follows.
Answer:
The answer to your question is: B
Explanation:
Physical properties are properties that occurs in matter but there is not change in the composition.
A. Solid ice can be very brittle. This is a physical property.
B. Water can form hydrogen and oxygen gas under electrolysis conditions. Here there is a change in the composition of matter, this is an example of chemical property
C. Water can freeze solid at 32 degrees Fahrenheit.
This is a physical property.
D. Liquid water can turn into steam in a heated tea kettle. This is a physical property
E. none of the above This option is wrong because option B is correct.
