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Svetach [21]
3 years ago
12

Which metal can replace another metal in a reaction?

Chemistry
1 answer:
lara31 [8.8K]3 years ago
4 0
Aqueous magnesium nitrate can replace solid copper metal
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Chemistry is the study of all of the following EXCEPT
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B - projectile motion
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What is Charles’s law? State the definition of the law in words. What are the assumptions of Charles’s law? Write mathematical e
Leviafan [203]

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The volume of a given mas of a gas is directly proportional to the temperature if the pressure remains constant

V is directly proportional to T

V=1/T

V=constant/T

Explanation:

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Which scientist discovered that the atomic number, rather than the atomic weight, is more responsible for the properties of an e
myrzilka [38]

<em>Answer:</em>

  • The correct option is Moseley who has discovered the atomic number.

<em>Explanation:</em>

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3 years ago
What label is given to an orbital with quantum numbers n=4 and l=1?
shtirl [24]

The principal quantum number, <span>nn</span>, designates the principal electron shell. Because n describes the most probable distance of the electrons from the nucleus, the larger the number n is, the farther the electron is from the nucleus, the larger the size of the orbital, and the larger the atom is. n can be any positive integer starting at 1, as <span><span>n=1</span><span>n=1</span></span> designates the first principal shell (the innermost shell). The first principal shell is also called the ground state, or lowest energy state. This explains why <span>nn</span> can not be 0 or any negative integer, because there exists no atoms with zero or a negative amount of energy levels/principal shells. When an electron is in an excited state or it gains energy, it may jump to the second principle shell, where <span><span>n=2</span><span>n=2</span></span>. This is called absorption because the electron is "absorbing" photons, or energy. Known as emission, electrons can also "emit" energy as they jump to lower principle shells, where n decreases by whole numbers. As the energy of the electron increases, so does the principal quantum number, e.g., n = 3 indicates the third principal shell, n = 4 indicates the fourth principal shell, and so on.

3 0
3 years ago
Consider the given examples listed here, find out which substance from the list will turn phenolphthalein pink? (a) vinegar ( b)
egoroff_w [7]

Answer:

(d) soap.

Explanation:

A soap is obtained by alkaline hydrolysis of a fat to yield the soap and glycerol. This process is known as saponification.

A soap solution is usually basic. Since phenolphthalein turns pink in an alkaline solution, then when phenolphthalein is added to a soap solution, the solution soon turns pink because it is alkaline in nature.

As a matter of fact, a soap sometimes has almost the pH of baking soda!

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