Answer:
303.6 mg
Explanation:
Given that:
The lethal dose = 1320 mg/kg
The weight of the rat = 230 g
The lethal dose is the dose of a substance likely to cause death. SO a lethal dose of 50 will cause the death of 50% of the sample of test animals.
Therefore;
The mass of 2-naphthol that would have been ingested by each rat in a sample set of rats in order to kill half the population of rats will be equal to:
= 303.6 mg
<span>B. When two molecules collide with enough force, old chemical bonds are broken and new bonds form, resulting in one or more new substances</span>
Answer:
Ok
Explanation:
BOTH can harm our precious ecosystems and they both can release harmful chemicals and pollution.
Answer:
matter cannot be created nor destroyed
Explanation:
Where's the multiple choice for this