Answer:
Explanation:
Density can be defined as mass divided by volume. But 2 objects made of the same material will have the same density regardless of their volume.
Oxygen gas and ozone are both made up of oxygen atoms but their properties differ.
<h3>How does oxygen gas differ from ozone?</h3>
- Oxygen is generally odorless when perceived, unlike ozone which has a pungent odor.
- Even though both are gases at room temperature, oxygen liquefies at a much higher temperature (-112 degrees Celsius) than ozone (-183 degrees Celsius).
- Ozone appears bluish in liquid form while oxygen is colorless in nature.
- In terms of reactivity, ozone is more reactive than oxygen.
More on ozone can be found here: brainly.com/question/14330630
#SPJ1
A) i believe the reaction is exothermic, because 27.6 kg of thermal energy is gained by the water solution, the dissolution of urea is exothermic. Exothermic reaction is a chemical reaction that releases energy by light or heat. It is the opposite of an endothermic reaction where heat is gained by the reaction.
b) The water gained the heat released when urea dissolve. That is the water gained 27.6 kJ, while dissolution of urea released 27.6 kJ. Therefore, the heat gained is equal to the heat lost.
c) From part B, since heat gained is equal to heal lost, then
250 g × (Tf -30) ×4.18 J/g = 27600 J
= 1045 Tf - 31350J = 27600 J
Tf = 56.41°C.
Therefore the final temperature of the solution is 56.41°C
d) The initial and final temperature in Fahrenheit
°F = °C × (9/5) +32,
Thus, 30°C will be equal to 86° F
while 56.41 will be equivalent to 133.54 ° F
The answer is B. Attributes because attributes are things that it “brings” and all the other answers are synonyms of properties
Answer:
Search by reactants (P 2O 5, H 2O) and by products (H 3PO 4)
H2O + P2O5 → H3PO4
H2O + HNO3 + P2O5 → H3PO4 + N2O5