the correct answer to this question is C
- <u>Physical Properties :</u>
- It is a crystalline colorless solid structure it is soluble in solution such as ether, alcohol, and chloroform but insoluble in water.
- It is dangerous when it is dry and is very volatile and decomposes when it reaches 103 c.
2. <u>Chemical Properties :</u>
- It causes swelling of the skin and undergoes free radical products that are highly reactive.
- It is irritant when it contacts the skin it breaks down to yield oxygen and benzoic acid.
<u>Explanation:</u>
- Benzoyl Peroxide is widely used in industry at large scale.
- It is formed when there is a reaction between hydrogen peroxide and benzoyl chloride.
- Benzoyl peroxide is used in bread and cheese as the bleaching agent and also used in cosmetics as hair coloring.
- Because of its antibacterial property and a peroxide group it is applied to the human skin to treat acne.
Answer:
Mass of NaF in 250 g tube of toothpaste = 100 mg of NaF
Explanation:
Mass of fluoride per gram of toothpaste = 1 mg
From the given data, the fluoride compound that is most often used in toothpaste is sodium fluoride, NaF, which is 45% fluoride by mass, mass of sodium fluoride per gram of toothpaste can be determined as follows:
1 mg of fluoride per gram of toothpaste = 45% total mass of NaF per gram of toothpaste
100% mass of NaF in toothpaste = 100/45 * 1 mg = 2.22 mg of NaF.
Therefore, mass of NaF per gram of toothpaste is 2.22 mg.
The mass of NaF in 250 g of toothpaste is then calculated below:
In 250 g of toothpaste, mass of NaF = 250 * 2.22 mg = 99.9 mg of NaF
<span>The forklift is a truck used to lift and move materials HI-LO is a type of forklift.
The difference between a forklift and a Hi-Lo is that they use different steering wheel. HI-LO uses joy stick like steering wheel and forklift uses regular steering wheel.</span>
The best way to dry is to let it air dry after washing it with soap and water
