A 390 mL solutions of 4.6 M HCl is left out over the weekend and 74 mL of solvent evaporates. What is the new concentration of HCl?

Consider the following reaction:CaCO3 (s) →CaO (s) + CO2 (g). Estimate ΔG∘ for this reaction at each of the following temperatures. (Assume that ΔH∘ and ΔS∘ do not change too much within the given temperature range.) A. 285 KΔG∘ = B. 1025 KΔG∘=C.

Which organ system consists of the following levels of organization? kidney cells - - > kidney tissues - - > kidney A. excretory B. circulatory C. respiratory D. integumentary

How does your nervous system respond to a stimulus such as a loud noise, a hot object, or a sudden change in temperature?

What is the purpose of the arrow in a chemical equation? O A. It indicates the direction in which the reaction occurs. Св. It separates the elements from the compounds. O C. It indicates the direction of increase in the number of molecules. D.

How many hydrogen (H) atoms are in one molecule of sulfuric acid, H2SO4? A) 1 B) 2 C) 4 D) 7

When magma intrudes parallel to another rock layer, the formation is called a (n) A. sill. B. dike. C. extrusion. D. unconformity.

What is the net amount of energy released when 1 mole of H2O is produced

Why is Sn (SO4) 2 named Tin (IV) Sulfate and not Tin (II) Sulfate?

An element x forms an iodide (xi3) and a chloride (xcl3). the iodide is quantitatively converted to the chloride when it is heated in a stream of chlorine: 2xi3+3cl2â2xcl3+3i2 if 0.5500 g of xi3 is treated, 0.2596 g of xcl3 is obtained.

When you kick a soccer ball across a field it will eventually come to a stop. Does this prove or disprove Newton's first law of motion? It disproves Newton's first law of motion because gravity is stronger than friction.