As scientists search the universe for signs of life on other planets they are likely to focus on the presence of molecules containing which of the following elements?

A. carbon

B. calcium

C. iron

D. magnesium

Identify the decomposition reaction. 2NH 3 + H 2SO 4 ⟶ (NH 4) 2SO 4 3Pb + 2H 3PO 4 ⟶ 3H 2 + Pb 3 (PO 4) 2 2 NO 2 ⟶ 2 O 2 + N 2 2NaBr + Ca (OH) 2 ⟶ CaBr 2 + 2NaOH

Chromosomes contain genes, if a person has an incomplete chromosome what would he or she be missing?

A substance with a higher ability to ionize is better able to conduct electricity in a solution. given this information, strong bases would also be: a. strong electrolytes. c. nonelectrolytes. b. weak electrolytes. d. strong acids.

Which of the following statements about tautomers is true? Group of answer choices Tautomers differ in the position of a double bond and a carbon atom. Tautomers differ in the position of a single bond and a carbon atom.

Refer to the following balanced equation in which ammonia reacts with nitrogen monoxide to produce nitrogen and water. 4NH3 (g) + 6NO (g) yields 5N2 (g) + 6H2O (l) How many moles of NH3 are necessary to produce 0.824 mil N2?

Peter is 5 ft, 11 inches tall. Paul is 176 cm tall. Who is taller?

Which is the MOST accurate description about how the different types of feedback mechanisms work

What was one of the main benefits to the use of the icebox for cooling food?

How many moles of chlorine gas would occupy a volume of 35.5 L at a pressure of 0.98 atm and a temperature of 373 K?

What are the building blocks