3 years ago

Which substance is used to remove rust from metal?

Physics

2 answers:

Vlad [161]3 years ago

7 0

Answer : The correct option is, (B) Hydrochloric acid(HCl)

Explanation :

Rust is an iron oxide, which is formed by the reaction of iron with oxygen in the presence of water.

As we know that the rust is an iron oxide (base) which is removed by an acid.

As per given options, the acid used to remove the rust from the metal is hydrochloric acid and not sulfuric acid because sulfuric acid is an oxidizing agent which oxidizes the metal more.

While the other options, ammonia and sodium hydroxide are a base.

Hence, hydrochloric acid is used to remove rust from metal.

Andreyy893 years ago

3 0

Hydrochloric acid would be the correct answer

You might be interested in

In certain cases, using both the momentum principle and energy principle to analyze a system is useful, as they each can reveal

kramer

Explanation:

The gravitational force equation is the following:

$F_G = G * \frac{m_1 m_2}{r^2} \\$

Where:

G = Gravitational constant = $6.67408 * 10^{-11} m^3 kg^{-1} s^{-2}$

m1 & m2 = the mass of two related objects

r = distance between the two related objects

The problem gives you everything you need to plug into the formula, except for the gravitational constant. Let me know if you need further clarification.

8 0

2 years ago

Why are coal,nuclear,oil,and natural gas determined to be non-renewable types of energy resources

IrinaVladis [17]

Answer:

Once used as a energy source they cannot be charged/used again.

Explanation:

7 0

2 years ago

In and electric circuit, where do the electrons come from that flow in the circuit

Firdavs [7]

The electrons are already there. They are freely moving through the conductor.

7 0

2 years ago

Read 2 more answers

What type of friction is using chalk in the summer to draw on the ground in Copley square?

Lera25 [3.4K]

The second option rolling friction

7 0

3 years ago

Nuclear energy is more harmful to the environment than a coal-fired power plant because it produces more mercury, air pollution,

krok68 [10]

A nuclear power plant doesn't produce any of those things. It only produces electricity and heat. As long as there are no accidents, and the worn out nuclear fuel is handled properly, the nuclear plant isn't harmful to the environment at all.

5 0

3 years ago