1. Heat can initiate reaction as well as be a product of chemical reactions. Cite the specific sample from the experiment that show heat acting in the manner
2. Aluminum chloride was a product in step 6. How could you instruct your lab partner to recover it.
3. Complete the following word equation and write the balanced formula equations:
a. Zinc(s) + iodine(g)
b. Hydrogen peroxide(l)
c. Magnesium(s) + lead(IV) nitrate(aq)
#1 is not clear.
#2 doesn't tell what form the AlCl3 is in.
#3. Zn + I2 ==> ZnI
3b is not complete
3c. Do it as in 3a.
1. To identify an experiment where heat acts as both an initiator and a product of a chemical reaction, you can look into exothermic reactions. An example is the combustion of methane (CH4) in the presence of oxygen (O2) to produce carbon dioxide (CO2) and water (H2O). The reaction is as follows:
CH4 + 2O2 → CO2 + 2H2O + heat
In this reaction, heat is the product of the combustion process. Additionally, heat is also required to initiate the reaction and sustain it, known as the ignition energy.
2. To instruct your lab partner on how to recover aluminum chloride, you can follow these steps:
a. First, make sure to wear appropriate personal protective equipment, such as gloves and goggles, as aluminum chloride can be hazardous.
b. Check if the aluminum chloride is in a liquid or solid state. If it is a solid, it might be easier to recover.
c. If it is a solid, gently scrape or scoop it up into a clean, dry container using a spatula or any suitable tool.
d. If the aluminum chloride is a liquid, carefully decant or transfer it into a separate container, ensuring no impurities or solids are carried over.
e. If there are impurities or other substances mixed with the aluminum chloride, you can use techniques like filtration or distillation to separate it.
f. Properly label the container with the name of the substance and any relevant information, such as the date and your names.
g. Follow appropriate disposal methods for any waste generated during the process, adhering to safety guidelines and regulations.
3. a. The word equation for the reaction between zinc (Zn) and iodine (I2) is:
Zinc + Iodine → Zinc iodide
To write the balanced formula equation, we need to consider the charges of the elements involved. Zinc has a charge of +2, and iodine has a charge of -1. The balanced equation is:
Zn + I2 → ZnI2
b. The word equation for the decomposition reaction of hydrogen peroxide (H2O2) is:
Hydrogen peroxide → Water + Oxygen
To write the balanced formula equation, we need to consider the elements involved. Hydrogen peroxide decomposes into water (H2O) and oxygen gas (O2). The balanced equation is:
2H2O2 → 2H2O + O2
c. The word equation for the reaction between magnesium (Mg) and lead(IV) nitrate (Pb(NO3)4) is:
Magnesium + Lead(IV) nitrate → Magnesium nitrate + Lead
To write the balanced formula equation, we need to consider the charges of the elements involved. Magnesium has a charge of +2, and the nitrate ion (NO3-) has a charge of -1. The balanced equation is:
3Mg + 2Pb(NO3)4 → 6Mg(NO3)2 + Pb