A high-energy physicist measures the time between collisions of Adams in a fluid the time is 12 FS what is the time in seconds write your answer in scientific notation

16. A small piece of silver was placed in a solution containing both magnesium nitrate and copper (II) nitrate. Which one of the following will occur? A No reaction occurs. B The silver dissolves and only copper is precipitated.

What element is oxidized in the following reaction? HNO3 + Cu yields Cu (NO3) 2 + NO2 + H2O a. Cu b. H c. N d. O

The forces between water molecules are stronger than the forces between ethanol molecules. Which liquid would probably be most difficult for an insect to walk on? Explain your answer.

How do you write a word equation

What is one factor that contributes to seasons occurring in Pennsylvania? A. The revolution of the moon around Earth B. The tilt of Earth on its axis C. The rising and falling of ocean tides D. The distance of Earth from the sun

Assuming that each cubic centimeter of water has a mass of exactly 1 g, find the mass of 1.27 cubic meter of water.

Using the following thermochemical data, what is the change in enthalpy for the following reaction? Ca (OH) 2 (aq) + 2HCl (aq) → CaCl2 (aq) + 2H2O (l) CaO (s) + 2HCl (aq) →CaCl2 (aq) + H2O (l), ΔH = - 186kJ CaO (s) + H2O (l) →Ca (OH) 2 (aq), ΔH =

Approximately how much of the world's oil and natural gas reserves are believed to be in the arctic?

Predict the precipitate produced by mixing a (n) Al (NO3) 3 solution with a (n) NaOH solution. Write the molecular equation for the reaction. (Use the lowest possible coefficients. Include states-of-matter under SATP conditions in your answer.)

What does rxns standfor?