An atom of element has 9 protons. What would the Elements atomic number be

1. How many moles of HNO3 will be produced when 0.65 grams of N2O5 reacts?

A carbon-12 atom has 6 protons, 6 neutrons, and 6 electrons. How many protons does a carbon-14 atom have? A) 6 B) 8 C) 12 D) 14

An atom has four electrons in its valence shell. What types of covalent bonds is it capable of forming? Choose one answer. a. single and double only b. single, double, or triple c. two double bonds only d. four single bonds only

In three different experiments, the following results were obtained for the reaction A - > products: [A]o = 1.00M, t1/2=50 min; [A]o = 2.00M, t1/2 = 25 min; [A]o = 0.50M, t1/2 = 100 min.

In the reaction C + O2 CO2, 18 g of carbon react with oxygen to produce 72 g of carbon dioxide. What mass of oxygen would be needed in the reaction? 18 g 549 729 90g

How many valence electrons does the neutral Mg atom have?

Which of these substances contributes to soaps slippery texture? - an acid - a base - carbonate - water

A student places a 12-gram cube of Ice Inside a container. After six hours, the student returns to observe the contents of the container.

Select the statements that best describe the properties of an intramolecular sn2 reaction mechanism.

Is a iron nail solid attracted to a magnet and soluble in water