3 years ago

Define the term Symmetry? and explain its types

1 answer:

5 0

Answer:

Mathematically, symmetry means that one shape becomes exactly like another when you move it in some way: turn, flip or slide. ... There are three basic types of symmetry: rotational symmetry, reflection symmetry, and point symmetry.

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Để trung hoà 20ml dung dịch HCl 0.1M cần 10ml dung dịch NaOH nồng độ x mol/l . Giá trị của x là

elena55 [62]

The question is: To neutralize 20ml of 0.1M HCl solution, 10ml of NaOH solution of concentration x mol/l is required. What is the value of x?

Answer: The value of x is 0.2 M.

Explanation:

Given: $V_{1}$ = 20 mL, $M_{1}$ = 0.1 M

$V_{2}$ = 10 mL, $M_{2}$ = x

Formula used is as follows.

$M_{1}V_{1} = M_{2}V_{2}\\0.1 M \times 20 mL = x \times 10 mL\\x = 0.2 M$

Thus, we can conclude that the value of x is 0.2 M.

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3 years ago

Now molecules: ____ molecules of H2 + ____ molecules of O2 → ____molecules of H2O

Valentin [98]

Answer:

4 H2 + 1 O2 = 2 H2O

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4 years ago

How many carbon atoms would be in the compound named chlorobenzene

kondaur [170]

chlorobenzene
Carbon - 6
Hydrogen - 5
Chlorine - 1

that 1 chlorine replaces one of the hydrogens
thats why hydrogen number decreases by number of Cl atoms (that are substituting those H atoms)

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4 years ago

A device that shows continuous change is

Gala2k [10]

Answer: I believe it could be an analog device

Explanation: An analog device broadcasts information continuously

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3 years ago

How many grams are equivalent to 20 moles of water?

Eduardwww [97]

Answer: 360.3056 grams i think

Explanation:

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3 years ago