NaN₃ is the chemical formula for Sodium Azide
Answer:
Theoretical yield
Explanation:
The theoretical yield of a product obtained from a reaction is the maximum obtainable amount of product from the reaction under ideal conditions and if all the limiting reactant is used up in the reaction. the actual yield however is lower a little than the theoretical yield in value
Answer:
(A) Mixture; physical; (B) compound; chemical; (C) mixture; physical
Explanation:
(A) Orange liquid
Mixture — Red solid dissolved in yellow liquid gives orange solution
Physical change — separated by distillation with no change to the substances
(B) Crystalline solid
Compound — decomposition converts a substance into two or more different substances with different properties.
Chemical change — new substances formed.
(C) Cup of tea
Mixture — sugar is dissolved in the tea
Physical change — the tea and sugar retain their original properties.
Answer:
Silicon does not form double bonds with oxygen, whereas carbon is capable of forming double bonds with oxygen. While the carbon dioxide molecular structure is linear, the silicon dioxide has an extended, different covalent structure.
Explanation:
If the sizes of the atoms of Silicon (Si) and Carbon (C) are compared to each other, the Si atoms are larger than carbon - which implies that the Si-O bonds will be longer than the C-O bonds. As a result, the p orbitals present on the Si and O atoms aren't very near to each other, in order to get together for the required overlap sideways which could have formed a stable pi bond. Hence, Silicon forms only single covalent bonds with Oxygen in silicon dioxide, in the form of a diamond structure with each Si atom being connected to its four neighbouring atoms through an O atom.
On the other hand, in the case of carbon dioxide, C is perfectly capable of forming double bonds with O. The different p orbitals are brought close together, resulting in a sideways overlap that leads to two pi bonds, twisted at a right angle to each other. As a result, the Carbon in carbon dioxide bonds with 2 oxygen atoms but not 4.
"I" symbol means the current goes through the system (imagine the 'I' being a line, like a circuit connecting [power to the device]) "O" symbol means the current does not go through the system. ( the circle is an open circuit, having no power flowing through it