What do the brackets in chemical equations mean? Im new to chemistry, what do brackets in chemical equations mean? Ca (OH) 2 What does the (OH) here symbolise? K2SO4. Al2 (SO4) 3. 24H2O What does (SO4) here symbolise?

What kind of chemical bond is formed when an equal exchange of electrons occurs?

Which is the best example of the law of conservation of energy? a basketball stops bouncing because its energy disappears. a rolling skateboard slows down because some of its kinetic energy changes to heat.

After the industrial revolution, the dark colored bark caused which kind of peppered moths to flourish A. Both peppered moths B. neither peppered moths C. The dark colored peppered moths D. the light colored peppered moth

The Mohs scale measures A. density of a mineral. B. a mineral's hardness. C. the luster of a mineral. D. a mineral's type of crystalline structure

What kind of volcanoes form from subduction boundaries

Name the following compound HClO

Aluminum and Oxygen gas will react to form Aluminum Oxide (Al2O3). When the equation is balanced, How many moles of Al2O3 are formed when a mixture of 0.36 moles Al is ignited? a. 0.12 b. 0.18 c. 0.28 d. 0.46

Which state of the West produces the widest varieties of fruits, vegetables, and nuts? A) California B) Colorado C) Wyoming D) Alaska

A chemical engineer for a fertilizer company is determining the most efficient way to produce ammonia. the engineer carries out the haber reaction under four different conditions.

What type of Bond exist in a molecule of hydrogen Iodide