Find a news article or research report that can be summarized with a table similar to discussed tables. Draw a Venn diagram to represent the data in the table.

The manager of a campus gym is planning the schedule of fitness classes for a new school year, and will decide how often to hold certain classes based on the interests of students. She polls 47 students at various times of day, asking what type of classes they’d be interested in attending. The results are summarized in the table below.

a. How many students are interested in yoga or spinning, but not pilates? b. How many are interested in exactly two of the three classes? c. How many are interested in yoga but not pilates ?

Balance the skeleton equations for the reactions. a. ammonium phosphate(aq) + chromium(III) bromide(aq) $\rightarrow$ ammonium bromide(aq) + chromium(III) phosphate(s). b. chromium(VI) hydroxide(s) $\rightarrow$ chromium(VI) oxide(s) + water(l). c. aluminum(s) + copper(I) chloride(aq) $\rightarrow$ aluminum chloride(aq) + copper(s). d. potassium iodide(aq) + mercury(I) nitrate(aq) $\rightarrow$ potassium nitrate(aq) + mercury(I) iodide(s).

Write skeleton equations for the following reactions. potassium iodide(aq) + mercury(I) nitrate(aq)$\rightarrow$ potassium nitrate(aq) + mercury(I) iodide(s)

Write skeleton equations for the following reactions. aluminum(s) + copper(I) chloride(aq) $\rightarrow$ aluminum chloride(aq) + copper(s)

Write skeleton equations for the following reactions. chromium(VI) hydroxide(s) $\rightarrow$ chromium(VI) oxide(s) + water(l)

Write skeleton equations for the following reactions. ammonium phosphate(aq) + chromium(III) bromide(aq) $\rightarrow$ ammonium bromide(aq) + chromium(III) phosphate(s)

At 298 K, the equi librium constant for the reaction

$$Fe2O3(s) + 3 H2(g) ↔2 Fe(s) + 3 H2O(l)$$

is 4.0×10^-6, and that for

$$CO2(g) + H2(g) ↔CO(g) + H20(l)$$

is 3.2×10^-4 Suppose some solid Fe2O3, solid Fe, and liquid H2O are brought into equilibrium with CO(g) and CO2(g) in a closed container at 298 K. Calculate the ratio of the partial pressure of CO(g) to that of CO2(g) at equilibrium .

Describe a situation in your own life that could be described or organized using a Venn diagram.

Write balanced equations for each reaction. Magnesium metal and water combine to form solid magnesium hydroxide and hydrogen gas.

Write balanced equations for the reaction of each metal with water. lithium

Write the formula and name the compound formed when each pair of elements combine. barium and chlorine

Given the elements Ar, Cs, Br, and Ra, identify those that form positive ions. Explain your answer.

Why is photoperiodism a better phrase to describe the phenomenon than nyctoperiodism?