Which of these changes involve forming or breaking new bonds?

a-rusting and cuting

b-boiling and melting

c-burning and digesting

d-burning and melting

Which organelle contains chromosomes? A. nucleus B. mitochondrion C. chloroplast D. vacuole

NaCl + H2O → NaOH + Cl2 + H2 How many grams of chlorine gas, Cl2 are given off if 7.5 grams of sodium chloride, NaCl, are decomposed? Is this equation balanced?

Condensation refers to the process when A gas turns to a liquid A liquid turns to a gas A liquid turns to a solid A solid turns to a liquid

How do you determine the number of electrons in an atom

An atom that has fewer neurons than protons and more electrons than protons is a (n)

Give the four symbols for physical states of reactants and products, and tell what each means.

Which element is more electronegative, sulfur or nitrogen?

How does igneous rock become metamorphic rock?

The atomic mass oftitanium is 47.88 atomic mass units This atomic mass represents the 1) total mass of all the protons and neutrons in an atom of Ti 2) total mass of all the protons, neutrons, and electrons in an atom of Ti 3) weighted average mass

How many milliliters of. 45m hcl will neutralize 25ml of 1m koh?