Por favor!

Se disuelven en agua 30.5g de cloruro amónico hasta obtener 0.5 Lde disolución. Sabiendo que la densidad es la misma que 1027kg/m^3, calcula:

a.) La molalidad.

b.) La normalidad.

How many atoms are in 1 mole of hydrogen

A neutron walks into a gas station to buy some snacks. He asks the cashier,"How much?" The cashier replies, "For you? No charge." what does this mean?

Which of the following methods can be used to separate salt and iron

Can rocks include organic materials, but minerals cannot true or false

A reaction produces 0.863 moles of H2O. How many molecules are produced?

Which of the following statements is true? A. Particles of a solid have a very orderly, three dimensional arrangement and do not move B. Particles of a liquid change shape and volume C.

How does hess's law use intermediate reactions to calculate the enthalpy of a desired reaction?

Which atomic particle dtermines the chemical behaviour of an atom?

If you could travel to the Sun and back, about how far would you travel? A. 1 AU B. 2 AU C. 5 AU D. 10 AU

A scientist is conducting a descriptive experiment where she is monitoring sea level along coastal towns in California. What is a major benefit of this experiment? The relationship shows cause and effect. It is repeatable.