43 Which temperature change indicates an increase in the average kinetic energy of the molecules in a sample? (1) 15°C to 298 K (3) 305 K to 0°C

(2) 37°C to 273 K (4) 355 K to 25°C

if you add sugar to lemonade but notice that the sugar is sitting un dissolved at the bottom is the lemonade saturated, pure saturated or unsaturated

Which statement is inconsistent with the concept of isotopes of the same element? a. Isotopes have the same number of protons b. Isotopes have the same atomic number c. Isotopes differ in mass number d.

What is the correct formula for the compound formed between sodium and iodine based on their positions in the periodic table?

Consider a hypothetical experiment in which the left beaker contains 4 mM NaCl, 9 mM glucose and 10 mM albumin. The right beaker contains 10 mM NaCl, 10 mM glucose and 40 mM albumin.

Write the isotope needed, by identifying A, Z, and X, to balance the following nuclear fission reaction: 23592U+10n→14056Ba+AZX+3 10n

What is an example of making a qualified observation

With respect to composition, how is the compound made from hydrogen and oxygen different from mixtures of these two elements?

How should scientist respond when new evidence that challenges current is presented?

Consider the following reaction, equilibrium concentrations, and equilibrium constant at a particular temperature. Determine the equilibrium pressure of H2. D2 (g) + H2 (g) ⇌ 2 HD (g) Kp = 1.80 P (D2) eq = 1.1 * 10-3 atm P (HD) eq = 2.7 * 10-3 atm

Find δe for the change in state of 1.0 molh2o (l) at 79 ∘c to h2o (g) at 116 ∘c. the heat capacity of h2o (l) = 75.3 j/molk, heat capacity of h2o (g) = 25.0 j/molk, and the heat of vaporization of h2o is 40.7*103j/mol at 100 ∘c.