4.00 g of sodium and 2.00 g of oxygen react according to the following balanced equation 4 Na + O2 → 2 Na2O Calculate the mass of Na2O that can be produced by this reaction

What is the first step in dividing two fractions?

Name three intermolecular forces that stabilize the structure of DNA, and explain how they act. A. flat, N-containing bases stack above each other, forming ion-dipole bonds to aqueous surroundings B.

What does the article say about how ocean acidification may affect plant and/or animal species of our planet?

A student states that every phase transition must involve a change in energy of the molecules of the substance. Is the student correct? Explain your answer.

An atom of calcium has 2 valence electrons and an atom of sulfur has 6 valence electrons how many lone pairs of electrons are present in the lewis structure of calcium sulfur

14. Two or more substances that are together but do not combine to form a new, pure substance.

A solution of a compound with a known extinction coefficient of 23,100 M-1cm-1 has an absorbance of 0.735 in a 1.30cm path length, what is the concentration of the solution

Balance the following equation with the smallest whole number coefficients. Choose the answer that is the sum of the coefficients in the balanced equation. Do not forget coefficients of "one". RbOH + H3PO4 → Rb3PO4 + H2O

What is the temperature of 100 liter container having 1 mole of an ideal gas at a pressure of 20 kilopascals

5.2*10^26 molecules of ch4 in volume