2 Fe2O3 + 3 C→ 4 Fe + 3 CO3
The reactant and products in this chemical equation is as below
<u><em>Reactant </em></u>
Fe2O3
C
<u>Product</u>
Fe
CO2
<u><em> Explanation</em></u>
A chemical reaction involve rearrangement reactants to form products.
Reactants are written on the left side of a chemical reaction while products are written on the right hand side of chemical reaction.
Since Fe2O3 and C are on left side of chemical reaction they are the reactants.
Fe and CO2 are on the right side of chemical reaction they are the products.
Answer:
As we move from left to right in periodic table atomic radii decreases.
Explanation:
Along period:
As we move from left to right across the periodic table the number of valance electrons in an atom increase. The atomic size tend to decrease in same period of periodic table because the electrons are added with in the same shell. When the electron are added, at the same time protons are also added in the nucleus. The positive charge is going to increase and this charge is greater in effect than the charge of electrons. This effect lead to the greater nuclear attraction. Thus the attraction of the atoms for valance electrons increases. The electrons are pull towards the nucleus and valance shell get closer to the nucleus. As a result of this greater nuclear attraction atomic radius decreases and ionization energy increases because it is very difficult to remove the electron from atom and more energy is required, and electronegativity increases.
Along group:
As we move from top to bottom in periodic table the atomic sizes increases.The electrons are added in next energy level in every next element. Thus the valance electrons farther away from the nucleus and hold of nucleus becomes weaker, because of weak nuclear attraction atomic radii increases.The ionization energy decreases.
Answer:
In this question, consider how to correct two options:
The most successful is that a steroid hormone derived from components that contain cholesterol, this is because they are made up of lipids.
And the second correct option is that to be transported in blood fluids, THEY ARE GENERALLY (NOT ALWAYS) transported by transport proteins to their target organ, which may be close, far or even the same as the productions.
Explanation:
A variety of steroids and synthetic steroids have also been devised. Most are steroids, but some nonsteroidal molecules can interact with steroid receptors due to the similarity of their forms. Some synthetic steroids are weaker, and some much stronger, than natural steroids whose receptors they activate.
Answer:
Magnetic separation
Sawdust is a non-magnetic material whereas iron shavings are magnetic. When a magnet is brought near a mixture of iron shavings and sawdust, the iron shavings will be attracted to the magnet while the sawdust will not. Thus, the iron shavings will be separated from the sawdust.
Explanation:
Separation techniques makes use of the differences in the properties of components of mixtures to separate theses components, one from another.
In a moxturemof iron shavings and sawdust, a suitable separation technique would be the use of magnetic separation.
The use of this separation technique is abasednonnthe principle that when a magnetnis brought near to a mixture containing magnetic and non-magnetic materials, the magnetic materials will be separated from the non-magnetic materials due to their attraction to the magnet. Sawdust is a non-magnetic material whereas iron shavings are magnetic. When a magnet is brought near a mixture of iron shavings and sawdust, the iron shavings will be attracted to the magnet while the sawdust will not. Thus, the iron shavings will be separated from the sawdust.
E. decomposition
hope this helps!
