What is the central part of a atom called

According to the law of conservation of matter, which statement about chemical reactions is true? A. Atoms cannot be created or destroyed by chemical reactions. B. Every atom destroyed in a chemical reaction must be replaced. C.

The vertical columns on the periodic table are called

Which type of glassware would most accurately deliver a 15.00 ml liquid sample?

Tessa weighs 425 N and Cindy weighs 300 N. They both climb a flight of stairs to a height of 8 m in 6 seconds. What can be said about the amount of work done by Tessa when compared with the work done by Cindy? A.

Give an example of a high PH acid

Heat that flows by conduction is the transter of thermal energy between substances in contact. What must occur for this to happen? The two systems must be the same temperature, The two systems must not be touching each another.

What piece of information connects mass and moles?

What relationship can be seen in an element's placement within a group and its electron configuration?

Which of the following is true concerning atoms? A. Atoms are made of even smaller substances called subatomic particles B. The properties of atoms cannot be measured or observed

Intermolecular forces as a whole are also known as