Why does a hypothesis have to be falsifiable?

Question 1 options:

A. It must be able to pass all its tests

B. It can be right only if it is found to be false

C. It must be possible to show that it is wrong

D. All of the above

What is the molecular shape of hydrogen?

Which compound becomes less soluble in water as the temperature of the solution is increased? (1) HCl (2) KCl (3) NaCl (4) NH4Cl

Take CuSO4, add enough to create a 0.5 Molar Solution in the ½ liter of water originally in the beaker. (It is fine if the concentration is slightly more or less than 0.5 M, make sure to record the observed concentration). Required: a.

By what quantity must the heat capacity be divided to obtain the specific heat of that material

How does the nuclear model and the solar system model differ from one another?

2. Describe in a step by step manner how you determined the identity of the two unknowns. Discuss both what you determined the unknowns to be and the method that you used to find them.

Number of hydrogen atoms in NaC2HO4

Calculate the pH for an acid that has a [H+] of 5.8 x10^-11 M.

Complete the lewis dot structure for h2co (in which both h atoms are bonded to c).

Do substances have to be cold to freeze?