Using the following equation 2C2H6 + 7O2 - - > 4CO2 + 6H2O if 2.5g C2H6 react with 170g O2, what is the limiting reactant?

What scientist was responsible for discovering the neutron?

In equal-arm balances from the early twentieth century, it is sometimes observed that an aluminum sheet hangs from one of the arms and passes between the poles of a magnet. This causes the oscillations of the equal-arm balance to decay rapidly.

What is the smallest particle that has all the properties of a specific element?

Scientists have put forth many types of alternative energy, one of which is nuclear power. Some people believe that nuclear power is dangerous even though it produces a lot of energy and is readily available.

The independent variable of a data set is q while the dependent variable is r. Which of theses is an explanatory variable?

Why are atoms always neutral

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