If the initial amount of a substance is 250 grams, how much will be left after 4 half-lifes?

3.) for each of the following compounds, draw the major organic product of reaction with hcl or naoh and circle whether the starting materials and products will be more soluble in organic solvent or water benzoic acid + hcl: benzoic acid + naoh: oh benzoic acid water/organic water organic fluorenone hс: fluorenone + naoh: fluorenone water/organic water/organic веnzocaine + hci: benzocaine + n»oh: h2n benzocaine water/organic water organic o=

The chemical bond connecting one nucleotide with the next one along the nucleic acid chain is called a

What is the value of the standard enthalpy of formation of an element in its most stable form?