Describe what happened to the overall level of carbon dioxide over this period of time.

In experiment #7, you observed the formation of carbon dioxide by reacting baking soda with vinegar.  Why was it not possible to relight the candle? A. Carbon dioxide is heavier than air so it stays in the beaker preventing the candle from relighting. B. Carbon dioxide is lighter than air so it escaped from the beaker and the candle should have relit. C. Carbon dioxide is heavier than air so it stays in the beaker and the candle should have relit. D. Carbon dioxide is lighter than air so it escaped from the beaker preventing the candle from relighting.

Describe the components of reactions (Reactants and products).

The compound ammonium nitrate is a strong electrolyte. Write the reaction when solid ammonium nitrate is put into water. Include states of matter in your answer. Submit Answer [Review Topics] [References] Use the References to access important values if needed for this question. Retry Entire Group 8 more group attempts remaining Show Hint Cengage Learning Cengage Technical Support 7+1 CPU 498-0 M2

B. The incomplete combustion of octane (C3H18), a component of gasoline, produces carbes monoxide (CO) and water vapor. Carbon monoxide combines readily with hemoglobin in the e blood cells of humans and animals. This prevents red blood cells from carrying oxygen. Thus carbon monoxide robs the tissues of the oxygen they need for survival. Write the equation for the combustion of octane. Solution:

Paraffin wax vapor reacts with oxygen gas to form carbon dioxide gas and water vapor. Paraffin wax is a mixture of hydrocarbons having a general chemical formula of CnH2n+2 where n is at least 16. Assume that for this wax n=30 1. Write the symbolic form of this chemical reaction. 2. Classify this chemical reaction and write the general form of this type of reaction. 3. If the wax is a solid at room temperature, why does the reaction state that it is a gas? 4. Explain why the reaction stopped after the glass was placed over the candle. 5. Explain what was on the inside surface of the glass and where it came from.

One day in lab, while taking apart a complicated distillation apparatus, your friend Lisa (an expert chemist) says this: "Group 2A metal hydrides react with water to produce hydroxides and hydrogen gas." Using Lisa's statement, and what you already know about chemistry, predict the products of the following reaction. Be sure your chemical equation is balanced! BaH₂(s) + H₂O(1)→

Write the equation for the decomposition of aluminum chlorate. Group of answer choices Al(ClO3)3 → AlCl3 + O2 2AlClO3 → 2AlCl + 3O2 AlClO3 → AlCl + 3O2 AlClO3 → AlCl + O2 2Al(ClO3)3 → 2AlCl3 + 9O2 Al(ClO3)3 → AlCl3 + 9O2

Blast furnaces extract pure iron from the iron(III) oxide in iron ore in a two step sequence. In the first step, carbon and oxygen react to form carbon monoxide: 2C(s)+O2(g)→2CO(g)   In the second step, iron(III) oxide and carbon monoxide react to form iron and carbon dioxide:   Fe2O3(s)+3CO(g)→2Fe(s)+3CO2(g)   Write the net chemical equation for the production of iron from carbon, oxygen and iron(III) oxide. Be sure your equation is balanced.

There is a demonstration in which solid pieces of five elements – which are knownto be metals – were placed in water. The five metals were calcium, lithium, magnesium, potassium, and sodium.The pieces of metal were similar in size, and were timed to find out how long it took each piece to completely react with water.Potassium was the fastest to completely react with water. Sodium was second fastest. Magnesium was the slowest, by far. Explain these results by answering the following questions:1. What is the first step in the reactions of these metal atoms with water? 2. Among the periodic properties of elements (like atomic radius, ionization energy, electronegativity, etc.)  …a. Which property most determines the speed of these reactions? b. Do values for this property increase or decrease as you go left to right across a period on the periodictable? What is it about the structures of atoms that causes this pattern? c. Do values for this property increase or decrease as you go down a…