Metals expand when heated. if gold is heated, what will happen to its density?

Elaborate on the difference in natural occurrences between fission and fusion reactions.

We place 1.32 mol pcl5in a 1.0 l flask and allow it to reach equilibrium at a given temperature. what is the final concentration of cl2in the flask?

A children's liquid medicine contains 100mg of active ingredient in 5 mL. If a child should receive 200 mg of the active ingredient how many mL of the medicine she's a child be given for the purpose of this question assume that these numbers are in

The kilogram is the standard unit of

What did Aristotle believe? O A. That the scientific method should be used to test ideas OB. That all matter was composed of earth, fire, water, and air O c. That matter did not exist in the physical world O D.

Student follow up The ionic equation for the reaction between zinc and sulfuric acid is. Zn (s) + 2H (aq) - - Zn" (aq) + H2 (g) a State what has been oxidised in this reaction. Explain your answer in terms of electrons.

What kind of group 1 atoms are the most reactive? a. Small atoms c. Atoms with the most electrons in the valence level b. Large atoms d. Atoms at the top of the periodic table

What does it mean when there are 2.3 x 10-4 moles?

Electric force is an A. attraction and repulsion between protons and electrons . B. attraction and repulsion between protons and neutrons. C. attraction and repulsion between neutrons and electrons.

A salt crystal has a mass of 0.18 mg. how many nacl formula units does it contain?