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

Write the formulas for the compound. chromium(VI) sulfide

Determine the mass in grams of each element. $1.33 \times 10^{22}$ mol of Sb

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

Write ba la nced equat ions for the following reactions: iron (II) oxide with perchloric acid.

Find the slope of the line through the given points. P(4, 0) and Q(1, -3)

A die is rolled 200 times with the following results:

$$\begin{array}{llllll} \text { Outcome } & \text { 1 } & \text { 2 } & \text { 3 } & \text { 4 } & \text { 5 } & \text { 6 } \\ \text { Frequency } & \text { 31 } & \text { 40 } & \text { 30 } & \text { 29 } & \text { 34 } & \text { 36 } \end{array}$$

What is the experimental probability of rolling each of the following results? a number less than 5

Write a balanced equation for the reaction that occurs in each of the following cases: Strontium oxide is added to water.

Write the equation of each line in the given form. the line through (3, 8) and (-3, 4) in slope-intercept form

A reaction occurs when sulfurous acid $\left(\mathrm{H}_{2} \mathrm{SO}_{3}\right)$ is mixed with an aqueous solution of sodium hydroxide.The reaction produces aqueous sodium sulfide, a chemical used in manufacturing paper. Write the chemical and net ionic equations for the reaction.

The recommended daily allowance (RDA) of selenium in your diet is $8.87 \times 10^{-4}$ mol. How many atoms of selenium is this?

An artist is planning a circular mosaic. The design for the mosaic has two chords that intersect inside the circle. Chord $\overline{P R}$ consists of two segments 3 in. and 15 in. long. Chord $\overline{S T}$ consists of two segments, one of which is 5 cm in length. Find the length of the remaining segment.

Write the formula for each of the following compounds: potassium hydrogen phosphate

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 .