A.) half - life of a radioactive substance is defined as the time during which concentration of the substance becomes half the initial value.
The top left corner shows the atomic number which is 3.
<span>Henry divides 1.060 g by 1.0 mL to find the density of his water sample.
</span>He should include THREE significant figures in the density value that hereports.
I'm pretty sure since one chemical can only bind with one other type, um, I think that one side of the DNA helicase helps make the other side?
