Who wasthe first person who suggested that matter was made up of atoms

Identify 3 elements on the periodic table named after scientists

How many valence electron do xenon have

Write a balanced equation for the combustion of butane. express your answer as a chemical equation. identify all of the phases in your answer.

Sodium is a member of the alkali metals, and it tends to form ionic compounds with many different nonmetals. A neutral sodium atom contains 11 protons and 11 electrons. What occurs in order for a sodium atom to turn into a sodium ion?

Water is a highly important natural resource. Which of these would be the Best method to Conserve water? A) Drinking bottled water B) Monitoring the pH of rivers C) Treating and re-using wastewater D) Testing nitrate levels in groundwater

Why would a crash involving cars going faster do more damage than a crash going slow? explain using terms kinetic and potential and inertia. Science

Just as heat can denature enzymes, so can a change in the pH. Enzymes that normally work in an acidic environment in the body can become denatured if the pH becomes too alkaline.

Newton's second law of motion uses the formula which states that a force will cause a mass to accelerate. (f = m • a. rewrite the formula to solve for a.

You have 500 mL of 5 M HCI already made. You need to dilute the solution to 1 M HCI. How much water will you need to add? a 2500 ml 062.01 CC 2.51 d 2.5 ml

Which of the following biomes likely has the thinnest layer of topsoil A. tropical rainforest B. deciduous forest C. grassland D. desert