The best unit to measure the distance between your house and the school would be

Sugars are polar substances. Which action would make sugar more soluble in water? A. Increase the water temperature. B. Increase the surface tension of the water. C. Decrease the quantity of water. D. Decrease the polar nature of the s

Which of the following ways lead to the creation of an ion? (You may select more than one option.) A. Gaining or losing electrons. B. Gaining or losing protons. C. Gaining or losing neutrons.

A sample of gas in a balloon has an initial temperature of 2.0 ∘C and a volume of 1.53*103 L. If the temperature changes to 99 ∘C, and there is no change of pressure or amount of gas, what is the new volume, V2, of the gas?

All atomic nuclei, except those of ordinary hydrogen, contain neutrons. a. True b. False

Which sentence correctly describes the position of electrons within an atom? A. Electrons exist outside the nucleus in indistinct electron clouds B. electrons orbit the nucleus in distinct circular paths c.

Why is the isotope mass multiplied by the isotopes percent abundance?

Rank the following substances in order from most soluble in water to least soluble in water: ethane, C2H6; 2-butanol, C4H9OH; potassium chloride, KCl; and propane, C3H8.

What information can be learned about the element chlorine (Cl) by looking at the periodic table? Select all that apply. chlorine has 35.45 protons chlorine has 35.45 neutrons chlorine has 17 protons chlorine has 17 electrons

Zn (s) + 2HCl (aq) → ZnCl2 (aq) + H2 (g) When combining zinc metal with hydrochloric acid, you notice that you run out of zinc and still have plenty of hydrochloric acid to continue the reaction. What is the term used to describe the zinc?

Engineers increase output in crop production by combining the strengths of two plants. This can be done by using one plant to pollinate a different plant so that their strengths are combined into a new plant. What is this technique called?