A 200. mL balloon of helium gas has a temperature of 293K. What is the temperature of the helium balloon if the volume expands to 600. mL?

a

879 mL

b

60.0 mL

c

273 mL

d

410. mL

A 0.7011-g mixture of sodium chloride and sodium nitrate is completely dissolved in water. When silver nitrate is added to the solution, 0.9805 g of solid precipitate. What is the percent by mass of chloride in the initial mixture?

A reaction is most likely to occur when the colliding particles have proper orientation and

What makes an atom larger or smaller

Oil doesn't mix with water because

What products would you expect from the reaction of ammonia and sulfuric acid in aqueous solution? 2nh3 (aq) + h2so4 (aq) →?

In the formula for the compound xcl4 the x could represent

What is the main function of antibodies? A: "Remembering" the characteristics of germs that have invaded your body in the past B: Creating new white blood cells C: binding themselves to invading antigens D:Signaling your immune system that antigens

In the reaction 2H2O (l) + 2Cl - (aq) → H2 (g) + Cl2 (g) + 2OH - (aq), which substance is reduced? A. H2O B. Cl C. H D. OH E. None of the Above (This is not a redox reaction.)

Which statements about the periodic table's organization are true? Select all that apply. The periodic table is organized by atomic number. The periodic table is organized by reactivity. The periodic table is organized by atomic mass.

He definition "'oxygen' means an element having an atomic weight of 8 and an atomic number of 16" is an example of: