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iogann1982 [59]
3 years ago
11

Realistic Examples Of “Theory” !! PLEASE HELP , I WILL MARK BRAINLY

Chemistry
1 answer:
kupik [55]3 years ago
6 0

The rejection of mythical beings.


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Which separation procedure is most likely to happen? Freezing a compound will break it down into elements. Filtering a mixture w
Alona [7]

Answer is: Filtering a mixture will separate it into substances.

Pure substance is made of only one type of atom (element) or only one type of molecule, it has definite and constant composition with distinct chemical properties. Pure substances can be separated chemically, not physically, that is difference between pure substances and mixtures.

Filtration is use for separation of heterogenous mixture, for example, sand and water.

5 0
4 years ago
Read 2 more answers
Given BH3, O3, CO2, and NH3, which of these compound is an exception to the octet rules?
butalik [34]

Answer:

a. BH₃

Explanation:

According to the octet rules, atoms reach stability when are surrounded by eight electrons in their valence shell when they combine to form a chemical compound.

From the options, the only compound in which the central atom does not meet the octet rules is BH₃. The central atom is boron (B), which has 3 electrons in its valence shell. When B is combined with hydrogen (H), 3 electrons from the 3 atoms of H are added. <em>The total amount of electrons is 6</em>, <em>fewer than 8 electrons</em> needed to meet the rule.

4 0
3 years ago
Which statement best describes the relationship between igneous and metamorphic rocks?
solong [7]

Answer:

Igneous rocks must go through the sedimentary process to change into metamorphic rocks. Igneous rocks are chemically changed into metamorphic rocks because of high temperature and pressure. Metamorphic rocks are formed from melting igneous rocks. Metamorphic rocks and igneous rocks do not follow a rock cycle.

Explanation:

hope this helps!

6 0
3 years ago
Read 2 more answers
Predict whether or not a precipitate forms upon mixing 175.0 mLmL of a 0.0055 MKClMKCl solution with 145.0 mLmL of a 0.0015 MM A
Lorico [155]

Answer:

AgCl

Explanation:

The reaction of KCl (In aqueous phase K⁺ + Cl⁻) with AgNO₃ ((In aqueous phase Ag⁺ + NO₃⁻) produce:

Ag⁺ + Cl⁻ ⇄ AgCl(s)

The reaction has a k of 5.56x10¹⁰

That means you will produce 5.56x10¹⁰ molecules of AgCl per molecule of Ag⁺ and Cl⁻ in solution.

As the AgCl is in solid state, this molecules is the precipitate.

I hope it helps!

4 0
3 years ago
What type of weathering changes a rock or materials composition
Paha777 [63]

The answer is chemical weathering .


3 0
3 years ago
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