If a decrease in temperature accompanies a reaction, what occurred?

A. Energy was absorbed.

B. Energy was released.

C. Energy was destroyed.

D. Energy was created

What are four physical properties of an orange.

Consider this equilibrium: H2 (g) + I2 (g) 2HI (g) Keq = 50.0. What is the Keq value when the reaction rewritten: 2HI (g) H2 (g) + I2 (g) Keq = ? A - 50.0 B 0.0200 C 25.0 D 50.0 E 0.04

Give the symbols for 4 species that are isoelectronic with the bromide ion, br-

A scientist has a new cough medicine by giving it to a group of course the scientist gives another group called the liquid and tells them cough medicine the people and goods are women between the ages of 20 and 30 you never a are in good health

Mark for review (Will be highlighted on the review page) 2. Positional isomers A. are never named differently. B. are compounds that have the same number and types of atoms but are arranged differently. C.

importance of pH value in daily life

How do metallic bonds differ from covalent and ionic bonds

Will ag2so4 precipitate when 100 ml of 5.0*10-2 m agno3 is mixed with 10 ml of 5.0*10-2mna2so4 solution?

How many grams of H₂ are produced with the reaction of 36 grams of water? 2 Na + 2 H20 - > 2 NaOH + h2

Which statement is the best description of a chemical bond? A. A chemical bond connects 2 different molecules. B. A chemical bond holds atoms together. c. A chemical bond turns molecules into atoms. D. A chemical bond identifies atoms in a molecule.