Answer:
We need 5 tablets.
Explanation:
We need to prepare 250 mL of a 1 : 5 solution.
When we are talking about solutions , '' a : b '' is known as the solution ratio.
Where ''a'' and ''b'' are integer numbers.
In our exercise, we have a 1 : 5 solution ratio. This means that we will have 1 gram of solute for each 5 mL of solution.
To calculate the mass of solute we can write the following :
Notice that we equalize the solution ratio to the mass of solute ''
'' divided by the total volume of solution (250 mL).
Solving for ⇒
⇒ 
We found out that we need 50 g of solute.
Given that each tablet has 10 g of solute ⇒
We need five 10-gram tablets to prepare the solution.
1 thumb. For women 1 thumb sized portion of fats with most meals is recommended.For men normally 2 thumb portion fats is recommended.
Answer:
c
Explanation:
in the body the blood vessels always stay in tack and they can never get old.
Answer: b. The elderly have a higher risk from toxic pesticides because they are less able to eliminate environmental toxins.
Explanation:
The older adults are expected to have health problems after a pesticide exposure. This is because of the fact that their metabolism is slow and the liver and kidneys are not able to remove the pesticides from the body. The liver and kidney may get injured during the exposure of the high doses of pesticides.
The longer a pesticide stay in the body of an old person this may result in more severe injury. As the body is slow in metabolism that is the conversion of the chemicals in the pesticides into less toxic metabolites. Thus the elderly people will not be able to eliminate the toxin from the body. The toxin will damage the vital organs and can lead to death.
Answer:
DO NOT cross your legs or ankles when you are sitting, standing, or lying down. DO NOT bend too far forward from your waist or pull your leg up past your waist. This bending is called hip flexion. Avoid hip flexion greater than 90 degrees at a right angle.
Explanation:
