A student notices dark clouds in the sky and that the playground is wet the student reasons that it rained which scientific skill describes the students reasoning

A. classifying

B. observing

C. inferring

D. predicting

If 23.6 grams of a substance reacts with 42.5 grams of another substance, what would we expect the mass of the products to be after the reaction?

Write the acid-base equilibrium reaction between clo - and h2o. ignore phases.

What is global warming? a) a recent increase in the average global temperature near Earth's surface b) a period of time when temperatures across the planet are colder than normal c) a characteristic of summer that returns seasonally d) the gain of

How do you use chemical energy in a sentence

If 20 grams of sulfur reacts with 30 grams of oxygen, predict the mass of sulfur trioxide produced. Why would you expect this

Is calcium carbonate chemical change?

The mass number of an element is the sum of the number of

Balance the following reaction. CH4+O2==>CO2+H20

Why do you think crime scenes involving homemade bombs have increased?

The molecules of a gas at constant volume are somehow given a lower average kinetic energy. What two measurable properties of the gas will change and in what direction?