A period is a horizontal row on the periodic table.

a. True

b. False

What are abiotic factors of the enviroment lynx

a sample of 3.00 g of so2 (g) originally in a 5.00 L vesselat 21 degee Celsius is transferred to a 10.0 L vessel at 26 degree Celsius a sample of 2.35g of N2 g originally in a 25.0 L vessel at 20 degree Celsius is transferred to same 10.

Which structure does a plant cell have that an animal cell does not have?

Louis Pasteur developed the germ theory of disease, which states that many diseases are caused by microorganisms. Had scientists been skeptical but not open-minded about the idea, it would not have been published in journals.

How does water evaporating from a glass show that matter is made up of particles? A. The heat energy from the air causes the glass to fill up with water particles. B. The liquid water particles turn into water vapor that spreads in the air. C.

A covalent bond between two atoms occurs when the atoms

Structural formula and type of reaction for each a) 4-nonene and fluorine b) hexane and oxygen gas c) pentanol and butanoic acid d) propane and hydrogen gas

Which statement is true for a pure compound but NOT true for a pure element?

Which one is uncelluar and which is multicelluar? crab or pond organism

An atom of lithium loses an electron. What is the effect of this event? Group of answer choices The atom of a different element is formed. The atom of lithium acquires no charge. The atom of lithium becomes a positively charged ion.