car traveling with constant speed travels 150 km in 7200 s. What is the speed of the car?

Which of the following is NOT true or an atom? A. They are composed of molecules. B. They combine to form compounds. C. They make up element. D They are extremely small.

Which lists the elements in order from least conductive to most conductive? A. nitrogen (N), antimony (Sb), bismuth (Bi) B. nitrogen (N), bismuth (Bi), antimony (Sb) C. antimony (Sb), nitrogen (N), bismuth (Bi) D.

Which element is in the same period as chlorine (Cl) ?

Tell how many significant figures this number contains: 18.20

The ionization energy of an element is a. a measure of its mass b. the energy required to remove an electron from the element in its gaseous state c. the energy released by the element in forming an ionic bond d.

What is the ph of a 7.5*10^-3 m H + solution

How many atoms of hydrogen are there in one molecule of C3H5 (OH) 3?

Transferring or sharing electrons between atoms forms

Ions that consist of a single atom are called ... ions

Ecosystems are clearly separated from one another. Where one ecosystem stops, another begins A: True B: False