How can I calculate the percent concentration of solution?

m solute = 15g

m solution = 100g

The hot converting blank is the layer of rock between the earths crust and core

Select all that apply. The discoveries of Niels Bohr were: - orbits of electrons -charge on the electron - quantum energy emissions - static electricity - relationship between outer shell and chemical properties

Which of the following statements is true about cellular respiration? It converts energy into food, It breaks down food to release energy, It turns carbon dioxide into water. It tums water into carbon dioxide.

A shiny block weighs 34.567 g and measures 3.5 cm in length, 2.0 cm in width, and 1.5 cm in thickness. What is it's volume and density? With work to show

K forms the compound K2O, which is an ionic compound that is brittle. Identify another element, M, that is likely to form a brittle, ionic compound with the formula M2O. Justify your answer in terms of periodic trends.

Which of the following organs are found in the circulatory system? * A.) Heart B.) Veins C.) Arteries D.) Capillaries E.) All of the above

What's the difference between volcano and vent

A marshmallow has an initial volume of 0.084 L at standard pressure (1.0 atm). If the marshmallow is placed in a vacuum chamber and the final volume is 0.785L, what is the pressure inside the chamber?

Can you think of another example of energy doing work fill out the table below with your idea

Write the net ionic equation for the reaction between agno3 (aq) and na2so4 (aq). be sure to include states of matter in your answer.