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Paraphin [41]
3 years ago
11

Use the periodic table to match each of the following element symbols to its name, atomic mass, or atomic number. (3 points)

Chemistry
1 answer:
bonufazy [111]3 years ago
8 0

Answer:

Tin I thunk

Explanation:

I think

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Choose a reasonable explanation to account for the differences. There may be more than one possible reason that makes sense, jus
Ugo [173]

Answer:

A. It is possible not all of the water was evaporated from the sand, causing the recovered mass to be higher

D. While drying the NaCl, the liquid boiled and some splattered out of the evaporating dish, causing the recovered mass to be higher.

Explanation:

Sand absorbs water and stores it. The sunlight causes the water to evaporate but sand can hold some of the water inside it. This results in increase in mass of the sand. The mass of sand before and after the water evaporation can be different.

6 0
3 years ago
The net ionic equation for the reaction between aqueous sulfuric acid and aqueous sodium hydroxide is ________.
Dennis_Churaev [7]
H₂SO₄(aq) + 2NaOH(aq) → Na₂SO₄(aq) + 2H₂O(l)

2H⁺ + SO₄²⁻ + 2Na⁺ + 2OH⁻ → 2Na⁺ + SO₄²⁻ + 2H₂O

H⁺ + OH⁻ → H₂O (the net ionic equation)
5 0
3 years ago
235
gizmo_the_mogwai [7]
Huh? . . . . . . . . : )
7 0
3 years ago
Read 2 more answers
The phase change of matter from a gas to a liquid is known as<br><br> please help
strojnjashka [21]

Answer:

Condensation

Explanation:

When a gas changes into a liquid, it is called condensation.

6 0
3 years ago
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Achiral compound X has the formula C8H17Br. Y, C8H17Cl, is chiral. X undergoes base-promoted E2 elimination to give a single alk
Andre45 [30]

Answer:

1-bromo-6-methylheptane : X

2-chloro-6-methylheptane: Y

Explanation:

A chiral compound is one which has a carbon with all four groups different.

Given:

Compound X is Achiral

Compound Y is chiral

Compound X gives single alkene on elimination : Z

Compound Y gives mixture of alkenes

Z on hydrogenation gives 2-methylheptane.

So the alkene must have carbon chain arrangement similar to 2-methylheptane and so the compound X and Y.

Based on the information the possible compounds are:

1-bromo-6-methylheptane : X

2-chloro-6-methylheptane: Y

The structures are shown in the figure.

6 0
3 years ago
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