' A compound has the same properties as the elements it is made from.' True or false.Why?

Chemistry

1 answer:

Vladimir [108]3 years ago

8 0

Answer:

False

Explanation:

That's because elements in a compound combine and become an entirely different substance with its own unique properties.

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Please help fast I WILL MARK YOU AS BRAINLIEST

Elan Coil [88]

Answer:

Explanation:

all the atoms must be balanced.

3 0

2 years ago

If two protons and two neutrons are added to the nucleus of a carbon atom, what nucleus does it become?

Shkiper50 [21]

If two protons are added to carbon, the chemical identity changes to oxygen, which is two spaces over horizontally on the periodic table. The number of protons is what we call the atomic number (Z), and this is what defines the identity of an element. Since we also added two neutrons, this is simply oxygen, or oxygen-16, the most abundant isotope of oxygen.

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2 years ago

analytical chemists can detect very small amounts of amoin acids , down to 3x10^-21 mol. how many molecules of an amino acid (mr

sesenic [268]

The number of particles in one mole is given be Avagadro's number 6.022×10^23

Multiply by number of moles.

3 ×10^-21 mol * 6.022 ×10^23 molecules/mol = 1,807 molecules
(rounded to nearest whole number)

6 0

2 years ago

Alkynes are reduced to trans alkenes by a process called dissolving metal reduction. The reaction uses sodium or lithium metal a

NISA [10]

Answer:

Explanation:

The movement of the electrons is illustrated in the picture attached to this answer. It is a four-step reaction mechanism.

First STEP: The first step involves the transfer of an electron from sodium to form a radical anion.

Second STEP: This radical anion then removes a proton/hydrogen from ammonia in a bid to neutralize itself (hence the hydrogen becomes bonded to the anion).

Third STEP: The sodium (from NaNH₂ formed) transfers an electron again to produce a vinyl carbanion.

Fourth STEP: The carbanion then removes a proton/hydrogen from ammonia (like in the second step) to form a neutral trans-alkene.

NOTE: The circled numbers denote each step while the mechanism on the left represents the use of any alkyl group (R and R') while the mechanism on the right assumes both alkyl groups are methyl. Hence, 2-butyne started the reaction and the final product was trans-2-butene.

6 0

3 years ago

Can someone help me with number 2?

DanielleElmas [232]

Answer:

Ammonia (NH3)

Explanation:

its an ionic compound where N nitrogen is bonded to covalent molecules

6 0

8 months ago