Which particles form the nucleus of an atom? a. protons and electrons b. protons and neutrons c. positrons and electrons d. positrons and neutrons

The heat capacity of solid sodiu capacity of solid sodium carbonate (Na2CO3) as estimated by Kopp's rule is A. 2.7 kJ/mol°C B. 0.121 KJ/mol°C C. 1.9 kJ/mol°C D. 0.11 KJ/mol°C

5) Which balanced equation represents a spontaneous radioactive decay? A) B) C) D)

On the periodic table there are how many elements that occur naturally

How many different possible structures of trichlorobenzene exist? A) 1 B) 2 C) 3 D) 4

Are plant cells affected when water is scarce

Where are two places that scientists obtain scientific knowledge

Which of the following best describes what happens when an ionic bond forms? A) two atoms come together and share electrons in order to fill their octets. B) two atoms give up their electrons in order to form a bond.

Describe the attraction between 2 atoms as a result of sharing electrons

I need to know about mitosis and meiosis

What is sediment and debris, and what role does it play in the way sedimentary rock forms?