Answer:
Iconic bonds don't burn easily
Explanation:
Covalent bonds are non metals. Covalent bond (sharing), low temp, low temp, burn easily, poor, polar covalent is good and non-polar covalent is bad.
Ionic - metals and nonmetals, ionic bond is when electrons are gained or lost, high temp, high temp, doesn't burn easily, good, good
Each type of
mineral has a chemical composition that is unique such as its chemical composition
and the arrangement of atoms. For example, the mineral hematite is Fe2O3. There
are two atoms of iron (Fe) and three atoms of oxygen (O).
Metals like sodium, potassium, magnesium, etc. are extracted by electrolysis of their chlorides in molten state.
These metals are not extracted by reduction of their oxides with carbon because:
Carbon has less affinity for oxygen than these metals
Carbon is a weaker reducing agent than these metals
These metals easily form oxides with oxygen, their oxides are very stable. Affinity to the oxygen is one the greatest of all elements.
Reducing agent is element or compound who loose electrons in chemical reaction. Sodium, potassium, calcium and magnesium are very strong reducing agents because they easily loose one or two valence electrons.
Electrolysis is a chemical methode that uses electric currents for chemical reactions.
More about reducing agent: brainly.com/question/7484765
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Answer:
b) Weeding is the process of growing weed
Explanation:
Wedding is an agricultural process carried out to ensure maximum you won't do. It is the process by which weeds i.e. unwanted plants are removed.
As rightly stated in the question;
- Weeding is either done by manual means e.g Cutlasses or use of weedicides, which are chemicals.
- Weeding is best done during tiling operations.
The incorrect option is that "Weeding is the process of growing weed" rather it is a process of removing weed.
