What role does evidence play in repeating experiments?

Who proposed the plum pudding model and what does it say about the structure of the atom

When 5 grams of KCl are dissolved in 50. grams of water at 25°C, the resulting mixture can be described as (1) heterogeneous and unsaturated (2) heterogeneous and supersaturated (3) homogeneous and unsaturated (4) homogeneous and supersaturated

Jack wants to know if it takes longer for warm water to freeze into ice cubes than cold water, so he performed the following experiment. Jack placed 50 mL of water in the refrigerator and allowed it to cool to a temperature of 4°C.

What is the molar mass of acetylene C2H2?

A solution contains 225 g of sodium chloride, NaCl, dissolved in enough water to make 0.250 L of solution. What is the molarity of the solution?

Which item takes the most amount of water to produce

1. Which of the following two ingredients can combine to make a compound? a. Salt and water b. Hydrogen and oxygen c. Eggs and butter d. Sugar and water 2.

What are two ways climate can influence weathering?

A light has a wavelength of 4.10*10^12m. What is the Frequency?

If a compound has a molar más of 180g/mol and it's empirical formula is CH^2O, what is it's molecular formula?