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3 years ago

Match the alkane names and structures. -butane -methane -ethane -propane

Chemistry

2 answers:

SpyIntel [72]3 years ago

7 0

Answer:

Explanation:

Here is the names and matches of butane methane ethane propane

gavmur [86]3 years ago

3 0

Butane goes to the second one

Methane goes to the third one

Ethane is the first one

Propane is the last one

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Where is the mass of an atom found

Virty [35]

Answer:

The mass of an atom is found in its nucleus.

Explanation:

An atom is made of three different particles: protons, neutrons and electrons.

Protons (positive charge) and neutrons (no charge) each have a mass of 1 AMU. They are both found in the nucleus (centre) of the atom.

Electrons (negative charge) are considered to have a mass of 0. Their mass is not actually 0, but very close so we do not count them. They are not in the nucleus, but found in shells surrounding the atom.

To calculate the mass of an atom, we add the number of protons and the number of electrons.

m = P + N

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3 years ago

What do the dots around a symbol in a Lewis structure represent?

anzhelika [568]

B. valence electrons

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2 years ago

Valence electrons are important because these are the only electrons involved with an atom's

Salsk061 [2.6K]

<span>Valence electrons are important because these are the only electrons involved with an atom's chemical reactivity.</span>

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3 years ago

Consider the following ionic compounds: CdCO3, Na2S, PbSO4, (NH4)3PO4, and Hg2Cl2. Which compounds will be soluble when added to

Grace [21]

Answer:

a. Na₂S and (NH₄)₃PO₄ .

Explanation:

To know which salts are soluble we need to remember some <em>solubility rules</em>. And apply these as follows:

* All compounds of group 1 (Li⁺, Na⁺, K⁺, etc.) are soluble, Na₂S is soluble.

* All ammonium salts are soluble,

<h3>(NH₄)₃PO₄ is soluble.</h3>

* All Cl⁻, I⁻, Br⁻ are soluble except when are with Ag⁺, Hg₂²⁺, Pb²⁺, Hg₂Cl₂ is <em>insoluble</em>

* Carbonates are insoluble except those with group 1 or ammonium, CdCO₃ is <em>insoluble</em>

* All sulfates are soluble except those with Ca²⁺, Sr²⁺, Ba²⁺, Pb²⁺, Ag⁺. PbSO₄ is <em>insoluble. </em>

Right solution is:

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2 years ago

Which two forms of heat transfer work together to heat water in a plastic bottle

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The second form is dependent on how the heating is taking place. If the bottle is out in sunlight, the form of heat transfer is radiation from the sun's rays. If heat is directly being applied to it, then the form is conduction, which occurs in solids and through direct contact.

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2 years ago