A molecule of a certain compound contains two nitrogen atoms and four oxygen atoms. What is the molecular formular for this compound?

Define homopolysaccharides

A 1.00g sample of an acid was dissolved in enough water to create 100.0ml of aqueous solution. Titrate it with 15.00ml of 1.058M NaOH. Determine the Formula mass of the acid, assuming two acidic protons per formula unit.

Part a:we can determine the purity of solid materials by using calorimetry. a gold ring (for pure gold, specific heat = 0.1291 j⋅g-1⋅k-1) with mass of 10.5 g is heated to 78.3 ∘c and immersed in 50 g of 23.

3) Explain why NaCl2 does not form

What was the American public's opinion about joining the League of Nations? A. It supported the president and actively took part in the League of Nations. B. The public thought that America should lead the League of Nations. C.

Pedro listed characteristics of two types of protists in a chart. Two Groups of Protists X Y Often multicellular Are usually autotrophic Include euglenoids Are heterotrophs Reproduce using spores Include different molds Which headings best complete

Which of the following is a characteristic of nonmetals? a. nonmetals are often shiny and hard. b. nonmetals are often malleable. c. Nonmetals do not conduct electricity. d. nonmetals are often ductile.

How does a change in temperature affect the kinetic energy of the particles in a reaction?

Which characteristic best identifies an Arrhenius base

Which statement correctly describes why a compound is a pure substance? O A compound is not a pure substance because each of its molecules is m elements A compound is a pure substance because its molecule cannot be broken O A compound is not a pure