Answer:
22 electrons are in the compound CO2. And the correct answer is Phosphorus tribromide.
Explanation:
Your answer is C. Both gasoline and litter would need to be physically separated from the water, because neither bonds with the water.
Answer:
Chemical energy is the answer
1st time of decay: 50%
<span>2nd time of decay: 50%+25%=75% </span>
<span>3rd time of decay: 75+12.5%=87.5% </span>
<span>Therefore, 87.5% of the samples decays in 3 half-lives </span>
<span>Therefore, 24 days is 3 half-lives </span>
<span>Therefore: </span>
<span>1 half-life is 24/3 = 8 days</span>
Answer:
Wildlife biologists are important to the safety and preservation of animal species, but they also benefit society as a whole. They observe animals in their natural habitats and conduct experimental studies to test for environmental hazards, diseases and unusual movement patterns
Explanation:
