Hydrogenation of vegetable oils and animal fats is a standard industrial procedure. The more saturated a fat is, the longer its shelf-life. Why? Because a site of unsaturation, an olefinic bond, is potentially a reactive site that can be oxidized.
Of course, these days we are sold on the benefits of unsaturated fats. A priori, an unsaturated fat will yield less energy upon combustion, and the <span>C=C</span> double bond is harder to metabolize than <span>C−H</span> bonds.
Answer:
No. She is not correct.
Explanation:
A chemical reaction alters the distribution or arrangement of the atoms. However, there is no loss of atom because according to the Law of Conversion of Mass, Matter can neither be created nor destroyed.
For example, the makeup of water is two molecules of Hydrogen and One Molecule of Oxygen (that is 
O). It can change states and still retain its composition (that is, the same number of atoms) however if it comes in contact with Sodium metal (Na), the atoms become re-arranged and new substances are formed. The two substances that are formed are:
- molecular Hydrogen (H2) and
- Sodium hydroxide (NaOH).
When this happens, we know that a chemical reaction has happened.
Cheers!
Explanation:
Types of over-the-counter medicines
In Australia, over-the-counter medicines can be supplied in three ways.
Pharmacist-only medicines
Some over-the-counter medicines can only be sold to you after you have spoken to the pharmacist. Examples include inhalers (puffers) to relieve asthma and mild steroid-containing creams for skin irritations.
Pharmacy medicines
Some over-the-counter medicines are available only at pharmacies but you do not need to speak to a pharmacist to buy them. Examples include medicines to treat diarrhoea and symptoms of allergy.
Medicines for general sale
You can buy some over-the-counter medicines in supermarkets and health food stores. Examples include cough and cold remedies, some painkillers such as paracetamol and aspirin, and vitamins.
Explanation:
Current government systems are near copies of the democratic procedures of ancient Athens Australia Slaves could never vote in Athens, The Persians greatly expanded their empire into Greece and beyond the Greek city-states began to merge and unite under a common culture advancement in geometry Alexander the Great conquered vast territories during this time Greek culture
