Why arent all molecules with polar bonds polar?

What best describes how the behavior of rocks changes when they become deeply buried and placed under high levels of heat and pressure?

What is combustion and how does it affect the carbon cycle?

What is an experiment that can verify that new substances are formed and heat is released or absorbed during a chemcal reaction?

The strongest and most stable chemical bonds are a) covalent bonds b. Ionic bonds c) hydrogen bonds d) those where free electrons can form other bonds e. C and d or correct

How are elements lithium sodium potassium rubidium and cesium organized on the periodic table.

How many molecules of substance B are produced when 29.3g of substance A reacts? The molar mass of substance A is 19.2g/mol. Convert the mass of A to moles. moles of A: Step 2: Convert the number of moles of A to the number of moles of B.

Which of the following statements is false? A) Entropy increases with the number of microstates of the system. B) The total entropy of the universe increases in any spontaneous process.

Heat energy is transferred to the pot; heat energy is transferred to the liquid; heat energy A) is lost. B) stays in the liquid. C) leaves the pot as the liquid boils. D) is transferred to the spoon and air.

When do scientist rely on estimates

Based on the diagram below, rank the three objects from least dense to most dense. Beaker and objects A. Object X, object Z, object Y. B. Object Z, object Y, object X. C. Object X, object Y, object Z.