What class of elements includes all of the elements that are gases at room temperature?

A. Non Metals

B. Metals

C. Metalloids

Methyl red is a common azo dye. Which starting materials are used to prepare it?

What do all of the molecules in the table have in common

Which instrument is used to measure how much matter is in an object

Suppose you have 150. ml of a substance with density of 28.0 g/dm3. convert the volume from milliliters to liters to cubic decimeters, then determine the mass of the sample in grams.

Is carbon tetrafluoride a polar molecule?

Marissa is learning about the unique properties of waves. She has learned that whenever the wavelength of a wave increases, the frequency of the wave decreases.

Which answer choice best explains why uranium-238 can be used in power plants to generate electricity? A) Nuclides of uranium-238 decay over time. They release large amounts of energy as their nuclei break apart.

Explain how you can use physical properties to compare substances.

How is this model useful?

What is the frequency of a wave? A. The amount of time that one full cycle takes B. The distance traveled by the wave during one full cycle C. The amount of cycles that occur in a given time D. The distance from the beginning to the end of a cycle