What is the volume of 0.30 M NaOH (aq) needed

to completely neutralize 15.0 milliliters of

0.80 M HCl (aq) ?

(1) 3.6 mL (3) 20. mL

(2) 5.6 mL (4) 40. mL

Select the correct answer. Which statement is true according to the quantum model of the atom? A. When an electron drops down from a high energy level to a lower one, light energy is emitted. B.

Which reaction is exothermic? CH4 + 2O2 - - >CO2 + 2H2O + 891 kJ NH4NO3 + H2O + 25 kJ - - > NH4 + (aq) + NO3 - (aq) 2H2O + 286 kJ - - > 2H2 + O2 N2 + O2 + 181 kJ-->2NO

Consider the reaction where A reacts with B to give C and D according to the rate equation: rate = k[A][B] If the concentration of both reagents is doubled, what happens to the rate of the reaction?

How many grams are in 4.00 x 1023 particles of alcl3?

In a methane molecule (ch4), there are 4 single covalent bonds. in an octane molecule (c8h18), there are 25 single covalent bonds.

Rocks formed by changes in heat and pressure or the presence of hot

Both equation I and II are balanced, but equation II is the correct way to write the balanced equation. Why do you think this is? (Hint: Think fractions.) I) 2 SnO2 + 4 H2 → 2 Sn + 4 H2O II) SnO2 + 2 H2 → Sn + 2 H2O

What technology did mackinnon use to discover the structure of the potassium ion channel?

Both equations I and II are balanced, but equation I is the correct way to write the balanced equation.

Which of the following energy sources are in some way divided from the sun (select all that apply) A. Geothermal B. Nuclear C. Wave D. Biomass