The two strands of a DNA molecule must be separated
Answer:
I'm taking a guess here. Aluminum.
Explanation:
The best conductor of heat would be the material that melted the ice fast. A.K.A. the one with the least amount of minutes. Since aluminum has the least, it is the best conductor of heat
<em>PLATO ANSWERS: </em>
<u>A.</u> Which source of electricity generation caused the most emissions?
<u>B.</u> What types of industries are responsible for greenhouse gas emissions?
<u>C.</u> What caused the dip in greenhouse gas emissions in transportation after 2007?
<em>Hope I helped some, Have a great day!</em>
4 moles of sugar.
Explanation:
A mole is defined as the amount of a substance contained in Avogadro's number of particles 6.02 x 10²³.
1 mole of substance = 6.02 x 10²³. molecules
Given that;
the sample of sugar contains 1.505 x 10²³.molecules
The number of moles in this amount of sugar is 4 moles
Learn more:
Number of moles brainly.com/question/13064292
#learnwithBrainly
For radioactive decay, we can relate current amount, initial amount, decay constant and time using:
N = No x exp(-λt)
Half-life = ln(2)/λ
λ = ln(2) / 5730
N/No = 80% = 0.8
0.8 = exp( -ln(2)/5730 x t)
t = 1844 years
