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3 years ago

Which of these is a property of acids?

2 answers:

7 0

Number 4 "they typically contain an -OH group." seems by far the correct answer and makes the most sence in my opinion. I hope this helps.

sertanlavr [38]3 years ago

3 0

Answer: Correct option is 3.

Explanation: Properties of Acid:

They are liquids.
Acids are the ones which donate hydrogen ions to the solution.
They turn blue litmus paper to red.
They are corrosive in nature.
They are sour in taste. For example: vinegar

From the above properties written, it can be said that option 3 is correct.

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Which of the following elements is very reactive and needs to gain one electron to have a full outermost shell?

NISA [10]

Iodine has 7 valence electrons. It needs therefore only 1 electron to be stable this is why it is so reactive.

4 0

3 years ago

Read 2 more answers

Describe endothermic vs. exothermic reactions in terms of product formation. (hint: what happens when products are formed?)

shusha [124]

Answer:

Endothermic reaction chemical equation

Reactnt A + Reactant B + Heat (energy) ⇒ Products

Exothermic reaction chemical equation

Reactnt A + Reactant B ⇒ Products + Heat (energy)

Explanation:

Endothermic Reaction

An endothermic reaction is a reaction that reaction that requires heat before it would take place resulting in the absorption of heat from the surrounding that can be sensed by the coolness of the reacting system

An example of an endothermic reaction is a chemical cold pack that becomes cold when the chemical and water inside it reacts

Exothermic Reaction

An exothermic reaction is one that rekeases energy to the surroundings when it takes place. This is as a result of the fact that the combined heat energy of the reactants is more than the chemical heat energy of the products. An example of an exothermic reaction is a burning candle

5 0

2 years ago

Draw the structures of the major 1,2 and 1,4-products formed by reaction of 1 mole of Br2 with 3-methyl-2,4-hexadiene. Assume th

Marizza181 [45]

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8 0

2 years ago

Calculate the pressure exerted by an book of mass 20kg occupying an area of 2 m square.

kotykmax [81]

The answer is 100 Pa.

The formula for calculating pressure is :

Pressure = Force ÷ Area

We are given that :

mass = 20 kg
area = 2 m²

We also know that :

Force = mass ×g

So, force will be :

F = 20 × 10
F = 200 N

Now, we can finally calculate pressure :

P = 200 ÷ 2
P = 100 Pa

8 0

1 year ago

What is 108 g +10+5+3

natali 33 [55]

ANSWER : 108 + 10 = 118

118 + ( 5 + 3 )

118 + 8 = 126

= 126 g

7 0

3 years ago