Why are atoms considered invisible

What mass of oxalic acid dihydrate, H2C2O4•2H2O, is needed to make a 0.357 M solution of oxalic acid in a 250.0mL volumetric flask?

Boron has only to naturally occurring isotopes. The mass of boron-10 is 10.01294 amu and the mass of bornon-11 is 11.00931 amu. Calculate the relative abundances of the two isotopes

A solution is made by dissolving 3.40 g of nacl in water to form 58.75 g of solution. what is the mass percent solute in the solution?

A 0.1873 g sample of a pure, solid acid, h2x was dissolved in water and titrated with 0.1052 m naoh solution.

Identify the oxidized substance, the reduced substance, the oxidizing agent, and the reducing agent in the redox reaction. mg (s) + cl2 (g) ⟶mg2 + (aq) + 2cl - (aq)

What are facts on osmosis?

If a map of temperature displayed stripes parallel to the equator with equal temperatures at equivalent distances north and south of the equator, it would mean that only blank affected temperature.

What is the term for the amount of salts in water? Evaporation Evaporation Salinity Thermocline Density

In an acid-base titration, of 20 ml of a m HCI solution with 1 m NaOH. How many ml of NaOH are needed

Which of the following is not a source of air pollution related to human activities