Answer:
physical- torn paper, coloring leaves in a coloring book
chemical- burned paper, leaves turning colors during fall and winter
Explanation:
The answer option which are products of combustion is: D. Heat and light.
In Chemistry, there are five (5) main types of chemical reaction and these include;
- Double-replacement reaction.
- Single-replacement reaction.
A combustion reaction can be defined as an exothermic chemical reaction between physical substances, usually in the presence of oxygen and hydrocarbons to produce heat, light and carbon.
An example of a combustion reaction is the burning of forest trees and plants.
In conclusion, the products of combustion are heat and light.
Read more: brainly.com/question/21453409
Answer:
Because the Earth's gravity acts on the atmosphere and holds it down, just as it does all other objects. The weight of the atmosphere is estimated to be about 5.75 quadrillion (5,750,000,000,000,000) tons. Air pressure is the "push" of the atmosphere on the Earth's surface.
Answer: Partial pressure of He that would give a solubility of 0.730 M is 15.5 atm
Explanation:
Henry's law states that the amount of gas dissolved or molar solubility of gas is directly proportional to the partial pressure of the liquid.
To calculate the molar solubility, we use the equation given by Henry's law, which is:
where,
= Henry's constant =?
= partial pressure = 1.7 atm
Putting values in above equation, we get:
To find partial pressure of He would give a solubility of 0.730 M
Thus partial pressure of He that would give a solubility of 0.730 M is 15.5 atm