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Serga [27]
3 years ago
5

JUST ONE MULTIPLE CHOICE QUESTION!

Chemistry
1 answer:
Butoxors [25]3 years ago
6 0
I think it’s The second option sorry if I’m wrong
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What is the concentration in moles per litre of:
Bumek [7]

Answer:

the concentration in moles per litre of is

Explanation:

Molarity

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6 0
3 years ago
ice _______________ - a collective term for several mechanical weathering processes induced by stresses created by the freezing
elena-14-01-66 [18.8K]

Answer: Frost weathering is a collective term for several mechanical weathering processes induced by stresses created by the freezing of water into ice.

6 0
2 years ago
Why do minerals with metallic bonds conduct electricity so well?
Roman55 [17]

Answer and Explanation:

Because metallic bonding involves delocalized electrons. It is described as a "<em>sea of electrons</em>", because the electrons are not confined around the nucleus of metal atoms, but they are delocalized: thay can be located in one nucleus and then in another neighbor atom. Thus, the electrons have more freedom to move from one part of the metal to another and electricity is well conducted.

8 0
3 years ago
Hemoglobin in your blood does not use elemental iron. It uses iron in the form of Fe2+(aq).
valina [46]

Explanation:

Balanced chemical reaction equation will be as follows.

     2Fe^{2+}(aq) + 2H^{+}(aq) \rightleftharpoons 2Fe^{3+}(aq) + H_{2}(g)

In human body, the neutral iron changes into Fe^{2+}(aq) cation. There will be an oxidation-half reaction and a reduction-half reaction. Equations for this reaction are as follows.

Oxidation: 2Fe^{2+}(aq) \rightleftharpoons 2Fe^{3+}(aq) + 2e^{-}[/tex] .... (1)

Reduction: 2H^{+}(aq) + 2e^{-} \rightleftharpoons H_{2}(g) ...... (2)

On adding both equation (1) and (2), the overall reaction equation will be as follows.

     2Fe^{2+}(aq) + 2H^{+}(aq) \rightleftharpoons 2Fe^{3+}(aq) + H_{2}(g)

Therefore, neutral iron is a part of Heme - b group of Hemoglobin and in an aqueous solution it dissolutes as a part of Heme group. Hence, then it becomes an Fe^{2+} cation.

3 0
3 years ago
Name the compound: PbF3
alina1380 [7]

Answer:

Lead(III) Fluoride PbF3 Molecular Weight -- EndMemo.

Explanation:

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5 0
3 years ago
Read 2 more answers
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