A hypothesis: A: Can be tested B: Is a prediction about the expected outcome of an experiment C: Must be stated in a form that can be either proven or disproven D: All of the above are true

The formula of copper sulfide is CuS but the formula of copper sulfate is CuSO4. State and explain the names of the compounds with the formulae Na3P and Na3PO4. Na3P: Na3PO4: explanation:

Circle the letter of the best answer. 1. Which statement is true? a. Mole ratios limit the number of significant figures in a calculation. b.

Which of the following could result from the fission of carbon? two carbon atoms one large carbon atom two lithium atoms

A toy car is placed at 0 on a number lineit moves 8 cm to the left then 4 cm to the right and then 6 cm to the left. What is the total distance the car moved?

If u were sitting in a boat as 6 meter waves passed by, how many seconds would pass between them

What is most believed by most scientists about the age of our solar system.

The water level in a graduated cylinder stands at 20.0 ml before and at 26.2 ml after a 16.74 g metal sample is lowered into the cylinder. what is the density of the sample. what metal is the sample most likely to be

An electrolyte is a substance that will conduct electricity when dissolved in water. a substance that conducts electricity well is a strong electrolyte. a substance that conducts electricity poorly is a weak electrolyte.

Energy is required to produce a chemical change during (1) chromatography (2) electrolysis (3) boiling (4) melting

What is the definition of colorie