How are Stars, Dust, and gas related to Dark matter

Which statement is true about molecules and compounds? Question 7 options: A Both are made of only one kind of atom. B Both are made of two or more atoms. C Both are made of two or more elements. D Both are made of only one element.

The accepted value is 1.43. Which correctly describes this student's experimental data? TrialMeasurement11.2921.9330.88 Question 17 options: accurate but not precise precise but not accurate both accurate and precise neither accurate nor precise

Which elements on the periodic table fulfill the octet rule

Melissa planted a sapling in her garden. She measured its height with a ruler. The tree was 15 centimeters tall. After a week, she measured it again. This time, the tree measured 25 centimeters.

How many liters of fluorine gas, at 298 K and 0.98 atm, will react with 23.5 grams of potassium metal? Show all of the work used to solve this problem. 2K + F2 2KF

Compound made up of only xenon and fluorine contains 22.44% fluorine by weight. what is the molecular geometry of this compound?

Which ions are spectator ions in the formation of a precipitate of agcl via combining aqueous solutions of cocl2 and agno3?

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.