If an atom has 34 electrons, 46 neutrons, and 34 protons, what is its mass number? what is the name of the element?

A pH increases, what happens to the hydroxide ion concentration? A) It decreases B) It equals the pH number C) It increases

Consider the following quantities used in thermodynamics: E, H, q, w, S, G. How many of them are state functions? a. 2 b. 0 c. 3 d. 1 e. 4

Which should be done when gathering questioned documents for handwriting analysis? Choose all answers that are correct. A. Store the questioned document in paper bags. B Handle the documents frequently. C Gather exemplars from potential suspects.

What type of molecule is the compound shown in the diagram? * diagram included* monosaccharide disaccharide starch amino acid

A piece of gold with a mass of 15.23 g and an initial temperature of 54 °C was dropped into a calorimeter containing 28 g of water. The final temperature of the metal and water in the calorimeter was 62°C.

A cylinder of oxygen gas contains 2.80 mol of 02. If the volume of the cylinder is 8.58 L, what is the pressure of the 02 if the gas temperature is 294 K.

A housefly's average life span is 3 days. How many minutes is that

The elements in Groups 1 AU) and 7A (17) are all quite reactive. What is a major difference between them?

A certain radioactive element has a half-life of one hour. if you start with 1.0 gram of the element at noon, how much of the radioactive element will be left at 2 p. m.? 0.50 grams 0.25 grams 0.125 grams 0.0 grams

Name two bases which react with dillute sulfuric acid to give zinc sulfate