Уже доступно! Исследование Telegram 2025 — ключевые инсайты года 
Maths Group11
Открыть в Telegram
The main purpose of this channel is to: 1. Print various Maths questions. 2. Publishing various books. 3. Print various short notes. Share it with your friends! Hirriyyoota keessaniif share godha!
Больше5 109
Подписчики
-424 часа
-107 дней
-7430 день
Архив постов
5 109
Given the sequence:
1, 6, 11, 16, 21, ...
What is the sum of the first 20 terms of the sequence?
5 109
How many grams of oxygen can be prepared by the decomposition of 12 g of mercury (II) oxide? ( Atomic mass: Hg = 200 g/mol, oxygen= 16 g/mol.)
5 109
The reactions in which oxidation and reduction do not occur and such types of reactions are known as ___________.
5 109
When 20g of sulphur dioxide reacts with oxygen, 23 g of sulphur trioxide is formed. What is the percentage yield?
5 109
How many liters of sulphur trioxide are formed when 4800 cm³ of sulphur dioxide is burned in air?
5 109
How many moles of CaO are needed to react with excess water to produce 370 g of calcium hydroxide?
5 109
Consider the following chemical equation:
PCl₅ + H₂O ------>H₃PO₄ + HCl.
Then what is the coefficient of HCl after balancing of chemical equation?
5 109
Which one of the following is the longest period in the periodic table?
5 109
When hydrogen and chlorine atoms are companied to form covalent bond, how many lone - pairs and bonding - pairs are there in HCl compound respectively?
5 109
Which of the following element can not form ionic compound with oxygen?
5 109
Which one of the following is not general properties of ionic compounds?
