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astraxan [27]
3 years ago
12

Most of the elements on the Periodic Table are metals. True False

Chemistry
1 answer:
Andru [333]3 years ago
5 0

Answer:

the answer is true

Explanation:

I hope so it is helpful to u

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Lipids are insoluble in water and they produce twice as more energy as carbohydrates.
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A chemical reaction in which one element replaces another element in a compound can be categorized as a
rewona [7]
They are substitution reactions 

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The number of protons in an atom is called the what???
ludmilkaskok [199]
It is called the atomic number. (In physics it can also be called the proton number)
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3 years ago
Compound a reacts with one equivalent of h2 in the presence of a catalyst to give methylcyclohexane. Compound a can be formed up
V125BC [204]

Answer:

The compound a is 1-methyl cyclohexene (see attachment for structure).

Explanation:

The reaction of 1-Bromo-1-methylcyclohexane with sodium methoxide is a <u>second-order reaction</u> since the <u>methoxide ion is a strong base</u> and also a strong nucleophile. This ion attacks the alkyl halide faster than the alkyl halide can ionize to produce a first-order reaction. However, we can not see the product of nucleophilic substitution. The SN₂ mechanism is blocked due to the <u>impediment of the 1-Bromo-1-methylcyclohexane</u>. The main product, according to the Zaitsev rule, is the 1-methyl cyclohexene, thus forming a <u>double bond</u>.

Then, this cyclohexene is hydrogenated to form the cyclohexane.

6 0
3 years ago
What is the molar mass of a compound?
Masteriza [31]

Answer:

The molar mass of a compound is The mass in grams of 1 mole of the compound (Option A)

Explanation:

Let's take ammonia as an example (NH3)

Mass of N = 14 g

Mass of H = 1 g

Molar mass of ammonia is Mass of N + (Mass of H).3

14 + 3 = 17 g/m

Ammonia is a compound that has 1 mol of N, plus 3 moles of H (see the formula)

The number of atoms in 1 mole of the compound --> This is Avogadro

7 0
3 years ago
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