Answer:
We cannot use hydrogen peroxides and chlorine bleach as a natural indicators because they are dissociated into its ions and changes their pH of dissociation.
Explanation:
Natural indicators are organic material that they formed by natural tissues and these are cannot be broken down into the further ions. Hence the pH value is cannot be vary.
If we use hydrogen peroxide and chlorine beach as as natural indicators these are further broken down into its ions and change their pH of dissociation.
Hence, we cannot used as a natural indicators.
Carbon Dioxide is a Covalent Bond
Answer:
c
Explanation:
The number of jobs in renewable energy worldwide increased in 2020, despite the huge economic disruptions caused by the pandemic, with the growing industry holding up better than fossil fuels. so which means reasourses are limited because of the pandemic and prises on thing rising.
Answer:
Average velocity of car = 50 km/h
Explanation:
Given information;
Distance cover by man in his car = 25 kilometer
Time taken by man to cover distance = 30 min
Find:
Average velocity of car
Computation:
Time taken by man to cover distance = 30 min
Time taken by man to cover distance = 30 / 60
Time taken by man to cover distance = 0.5 hour
Average velocity = Distance / Time
Average velocity of car = Distance cover by man in his car / Time taken by man to cover distance
Average velocity of car = 25 / 0.5
Average velocity of car = 50 km/h
Hi!
The substance that could be found in air, water or soil that is harmful to humans or animals is called pollutant.
Pollutants are the only harmful substances that can be found in these three places. Carbon Dioxide (CO₂) is commonly found in the air, fossil fuels are found in soil and water and smog is found in the air. Only pollutant can be found in these three places as there are varied in its chemical structure. Common pollutants include Sulfur Dioxide (SO₂) which can be found in the air, and Lead, which can be found in water or soil.
Have a nice day!