Answer:
Straight connection
Explanation:
All synthetic items are made in a chemistry lab.
Natural - Organic
Chemical/Synthetic - Inorganic
Explanation: Some of the most important properties of synthetic materials are as follows: 1. Tensile strength 2. The Action of water 3. The Action of heat and flame 4. Thermal conductivity 5. Electrical conductivity. The usefulness or otherwise of a synthetic material depends upon the following properties. 1. Tensile strength:
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The answer to the question is D
Answer:
- First of all, think the reaction:
4Al + 3O₂ → 2Al₂O₃
- Afterwards, determine the ratio of reactants (4:3)
<u>4</u>Al + <u>3</u>O₂ → 2Al₂O₃
- Convert the mass of Al into moles, by dividing mass / molar mass
48 g / 26.98 g/m = 1.78 mol
- Make a rule of three to determine the moles of O₂
4 mol of Aluminum react with 3 mol of oxygen, so
1.78 mol of Al, will react with (1.78 . 3) / 4 = 1.33 mol of O₂
- Finally, convert the moles in mass like this:
Mol . molar mass = mass → 1.33 mol . 32 g/m = 42.7 grams
Explanation:
Reaction
4Al + 3O₂ → 2Al₂O₃