Because a physical change does not change the substance's chemical properties
An example of a chemical reaction like sugar's chemical formula is C6H12O6 and if we apply heat to it and it burns it will now become just carbon ashes C
Answer:
V₂ = 1.92 L
Explanation:
Given data:
Initial volume = 0.500 L
Initial pressure =2911 mmHg (2911/760 = 3.83 atm)
Initial temperature = 0 °C (0 +273 = 273 K)
Final temperature = 273 K
Final volume = ?
Final pressure = 1 atm
Solution:
Formula:
P₁V₁/T₁ = P₂V₂/T₂
P₁ = Initial pressure
V₁ = Initial volume
T₁ = Initial temperature
P₂ = Final pressure
V₂ = Final volume
T₂ = Final temperature
by putting values,
V₂ = P₁V₁ T₂/ T₁ P₂
V₂ = 3.83 atm × 0.500 L × 273 K / 273 K × 1 atm
V₂ = 522.795 atm .L. K / 273 K.atm
V₂ = 1.92 L
To find the speed, you're going to find the miles per hour. So, you divide the total amount of miles traveled by the time it took to travel those miles.
1200/30
Now you have a fraction. But, this fraction can be reduced, so now we have to reduce it. Both the denominator and the numerator can be divided by 30.
40/1
So, your answer is forty miles per hour.
Mixing a base with an acid results in a chemical reaction called neutralization.<span> The result is a perfectly balanced solution of salt and water with a pH of 7 if the acid and base are balanced properly. Depending on the bases and acids used, it can be a dangerous experiment.
Hope I helped you lots!! :3</span>
Answer:
Eat healthy food and exercise daily also undertake good healthcare
There are some special exercises that help to increase brain strength you can do them