Write the word and formula equations representing the chemical reaction that occurred between the. barium chloride solution, BaCl2 (aq), and the sodium sulfate solution Na2SO4 (aq).

1. Name the mode of heat transfer

When placed in a freezer, liquid water turns into solid ice. Why is this considered a physical change?

A chemist measures the thermometer in the calorimeter and notices the temperature has increased. What does this mean about the reaction that has taken place inside the calorimeter?

When an electric circuit is created, electrons begin to move where? from the negative electrode first throughout the circuit all at once from the closed switch first from the positive electrode first

which is a false statement about vinger. A. its a pure surprise B. it's a physical combined c. it is made up of more than one pure substance. D it is capable of being separated into its original components by physical means.

Location A and B are adjacent. Location A is at a higher temperature than Location B. What will most likely happen? A. The two locations will experience different air pressures. B. The convection currents of air above the two locations will stop. C.

Based on the kinetic molecular theory, which of the following statements is correct about the particles in a sample of gas? They have negligible kinetic energy. There is negligible force of attraction between them.

Convert the following to scientific notation 24,212,000

The lunulanail platecuticlefree edge protects the nail matrix from the invasion of harmful substances.

Calculate the force of Attraction between two masses one of 5kg and one of 8kg whose center are 10 cm apart