In general is it better to measure a large or small sample

Is a solution a homogeneous or a heterogeneous mixture? Give an example of an aqueous solution.

6.5 Moles of Al reacts with 7.2 Moles of H2O What is the limiting reactant and calculate the Theoretical Yield? 2AL + 3H2O - -> AL203 + 3H2

When a sample is heated water is observed at the top of the tube. The compound melts and changes color. Te residue is not entirely soluble. It is most likely Select one: a. a carbohydrate b. a hydrate c. efflorescent d. deliquescent

How much work is done if the sled moves 10 m horizontally

A sample of hydrogen is collected in a flask over water. The partial pressures are 736 torr for H, and 22 tort for H2O. What total pressure is exerted by the mixture of gases?

Question: Ron is a healthcare worker who needs to lift a heavy patient. Which kind of safety issue does this scenario relate to? A infection B. ergonomics C. human resources D. orientation

Which of the following is the best example of chemical weathering? (A) limestone rocks dissolving in water (B) plant roots growing through concrete and splitting it (C) waves carrying sand away from a beach (D) a large rock splitting into pieces

Is heat of fusion an extensive or intensive property? Why?

How many moles of oxygen gas are produced from the decomposition of six moles of potassium

Why do magnesium and oxygen combine?