Is N2 an element compound pure substance homogenous mixture heterogeneous mixture or a solution

What causes refraction

What is the concentration of a 500 mL solution containing 5 moles of solute? A. 0.01 M B. 0.1 M C. 1 M D. 10 M

Joshua dissolved sugar in water to create a sugar solution. His friend Ray tells him it's a compound, but Joshua corrects him. Which words actually describe the sugar solution?

What are the coefficients for the following reaction when it is properly balanced?? potassium iodide + ? lead (II) acetate lead (II) iodide + -potassium acetate 3,2,2,1 1,1,2,2 none of these

Is the following salt an acid, base, or neutral? NH4ClO4

What factors allowed the koala population to grow beyond what their habitat could sustain?

What are the subscripts for the molecular formula of C2H3

What does the dashes line represent? A. Medium B. Boundary C. Normal D. Incident Ray

Only a small amount of cerium oxide nanoparticles is needed because the nanoparticles ... 1) are elements 2) are very reactive 3) have a high surface area to volume ration

Describe the solubility of water compared to ethanol?