A scale and a ruler. The scale to measure the mass, and a ruler to measure the volume.
ANSWER
THE PENTANES
EXPLANATION
he word for5 in Greek is PENT like the 5 sided and 5 angled building in Wachington the PENTagon.
SO C5H12 IS PENTAND BECAUSE IT HAS NO DOUBLE BONDAS IT IS AN ALKANE
SO SO C5H12 IS PENT-ANE PENTANE AND THERE ARE MULTIPLE FORMS OF IT
Answer:
A- a rigid solid
Explanation:
The Earths mantle is mainly made up of rock and rocks are rigid and are solid.
Answer:
The intermediates in this reaction are Cl and CCl₃.
Explanation:
- To indicate the intermediate in this reaction, we should firstly define the intermediate.
- The intermediate is the species that produced within the steps of the reaction and consumed in the later step/s and does not appear in the overall reaction (<em>neither reactants nor products</em>).
- The mechanism of the reaction contains 3 steps:
- Cl₂ ↔ 2Cl
- Cl + CHCl₃ → HCl + CCl₃
- Cl + CCl₃ → CCl₄
- The overall reaction is: Cl₂ + CHCl₃ → HCl + CCl₄
- So, the intermediates in this reaction are Cl and CCl₃.
- Thus, 2 moles of Cl is produced in the first step and consumed in the second and third steps.
- 1 mole of CCl₃ is produced in the second step and consumed in the third step.
Answer:
a) Secretion of unpleasant liquids which make them distasteful.
Possession of spines or thorns or irritating hairs which cause pain or irritation on contact.
Possession of poisonous parts which cause pain or itching or death or swelling on contact.
b) An anion is a negatively charged atom (or group of atoms).
OR
An anion is an ion formed when an atom (or group of atoms) gain electrons.
c) i. NH4OH and dilute HCL.
= Ammonium chloride, water
ii. CACO3 and dilute HCL.
= Calcium chloride, water, carbon dioxide or carbon (IV) oxide.
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