3.75 g of an unknown gas at 59 °C and 1.00 atm is stored in a 1.35-L flask. What is the molar mass of the gas?

The conjugate acid in the reaction described in HCl (g) + NH3 (aq) → NH4 + (aq) + Cl - (aq) is

The provided table shows the properties of four different sample materials. One of these materials is cork, a type of wood that floats on water (density of water = 1.00 g/cm3).

When 100 mL of 0.200 M NaCl (aq) and 100 mL of 0.200 M AgNO3 (aq), both at 21.9 °C, are mixed in a coffee cup calorimeter, the temperature increases to 23.5 °C as solid AgCl forms.

In an exothermic reaction where does the energy released as heat come from?

1. what happens when vinegar and baking soda are passed through lime water? a. write the effect of CO2 the gas on lime water? b. is it a physical or chemical change.

Atom with mass number of 31 and 16 neutrons what is the atomic number

In which medium will a sound wave move more quickly

Which of the following is best revealed by the bohr model? a. electrons are found only within the nucleus of an atom. b. protons orbit the nucleus of an atom in fixed proton shells. c. neutrons orbit the nucleus of an atom in fixed neutron shells. d.

A scientist wants to predict the weather which sphere should he study?

What structural formula represents 4 electrons shared between two atoms A. 0=0 B. S8 C. P4 D. N=N