How do I record the mass of one mole of a substance? (for example, aluminum)

Which statement describes the energy changes that occur as bonds are broken and formed during a chemical reaction? 1. Energy is absorbed when bonds are both broken and formed. 2. Energy is released when bonds are both broken and formed. 3.

2. Identify items in your life that are made of each type of element: metal, nonmetal, and metalloid. For each item, explain why the properties of that type of element are necessary for the function of that item.

Which features could be best viewed on a map with the scale 1 centimeter:100 kilometer A. continents and oceans B. street signs in small City C. hills and valleys D. neighborhood parks

Juan is planning an investigation about natural reserves. which of these is most likely to be a reliable source of scientific information on the internet

What causes surface tension under water

Select the correct answer. A man pours some hot coffee into a small cup from a large jug that contains enough coffee for several cups. Which statement correctly compares the coffee in the cup and in the jug? A.

Is sponge cake a heterogeneous mixture

Describe three skills people use to conduct scientific investigations

The surface temperature on Venus may approach 739 K. What is this temperature in degrees Celsius?

Complete the acid-base reaction between butyric acid HC4H7O2 and potassium hydroxide KOH. Do not include phase designations for any of the reactants or products. Be sure to include the charge for any charged species.