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jonny [76]
3 years ago
15

What is corrission?plzzz say me the answer fast

Chemistry
1 answer:
trapecia [35]3 years ago
3 0
The process of formation of a reddish brown layer on an iron metal due to contact with air and water is known as corrosion.
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A student pours 10.0 g of salt into a container of water and observes the amount of time it takes for the salt to dissolve. She
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Answer:

It will go faster each time because she is stirring therefore the water can get to the salt faster than it just sitting at the top

Explanation:

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3 years ago
Assume you are designing a refrigerator system how would you use gas laws in the designing?​
ICE Princess25 [194]

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Add is wires and lights.

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Gas laws include the wire lines the produce temeperature and the lights system.

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3 years ago
When does phenolphthalein turn pink?
Svetach [21]

Answer is: a) in the presence of a base.

Phenolphthalein is colorless in acidic solutions and pink in basic solutions.

Acid-base indicators are usually weak acids or bases and they are chemical detectors for hydrogen or hydronium cations.

Example for acid-base indicator is phenolphthalein (molecular formula C₂₀H₁₄O₄).

When solution turns phenolphthalein pink, it means it is basic (pH>7).

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3 years ago
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Isotopes of carbon differ with the respect to the number of
hodyreva [135]

Answer:

Neutrons.

Explanation:

Isotopes can be defined as the atom of an element that has the same number of protons but different number of neutrons. This ultimately implies that, the isotopes of an element have the same atomic number (number of protons) but different atomic mass (number of nucleons).

The isotope of an element is denoted by X^{A}_{Z}

Where; X is the symbol of the element.

A is the atomic mass or number of nucleons.

Z is the atomic number or number of protons.

<em>Therefore, the number of neutrons = A - Z</em>

<em>Isotopes of carbon differ with respect to the number of neutrons.</em>

<em>Basically, there are three (3) Isotopes of Carbon and these are;</em>

<em>1. Carbon-12: it has an atomic mass of 12 with 6 numbers of proton and neutron respectively. </em>

<em>2. Carbon-13: it has an atomic mass of 13 with 6 numbers of proton and 7 numbers of neutron. </em>

<em>3. Carbon-14: it has an atomic mass of 14 with 6 numbers of proton and 8 numbers of neutron.  </em>

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3 years ago
PLEASE HURRY I'M TIMED
cricket20 [7]
You should give a picture of the fable!
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2 years ago
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