HELP!!! How much heat is required to change 40 g of ice (H2O) at 225 K to vapor (steam) at 387K?

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=

One nanometer is equal to how many meters?

When did stem cell research become known ? who discovered stem cell? what experiments or studies have been conducted so far?