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3 years ago

Which substances are acids? Check all that apply

Chemistry

1 answer:

Brut [27]3 years ago

7 0

The substance which is are acids are HBr , CH3COOH and H3PO4

<u><em>Explanation</em></u>

An acid is substance that releases hydrogen ions ( H+) when it dissolve in water.

HBr , CH3COOH and H3PO4 is an acid because they dissolve in water to release hydrogen ions(H+)

for example CH3COOH(aq) → CH3COO- (aq) + H+(aq)

HBr (aq)→ H+ (aq) +Br- (aq)

H3PO4(aq) → H+(aq) +H2PO4-(aq)

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What is the general equation for an acid and base reaction?

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Answer:b

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3 years ago

How many grams are in 0.220 mol of Ne?

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Answer:

Mass = 4.44 g

Explanation:

Given data:

Number of moles of Ne = 0.220 mol

Mass in gram = ?

Solution:

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4 years ago

Read 2 more answers

Rank the species CH2NH, CH3I, HF, C2H6 from most to least miscible in ammonia (NH3) 1. CH3I > C2H6 > HF > CH2NH 2. CH2N

777dan777 [17]

Answer:

$HF>CH_{2}NH>CH_{3}I>C_{2}H_{6}$

Explanation:

$NH_{3}$ is an weak base. HF is an weak acid. Hence an acid-base reaction will ocuur between $NH_{3}$ and HF resulting a homogeneous mixture.

$NH_{3}$ is a polar protic molecule. Hence it can form hydrogen bonding with another polar protic molecule $CH_{2}NH$ . Also dipole-dipole attraction force along with london dispersion force exists between $CH_{2}NH$ and $NH_{3}$ .

$CH_{3}I$ is a polar molecule. Hence only dipole-dipole attraction force along with london dispersion force operates between $CH_{3}I$ and $NH_{3}$ .

$C_{2}H_{6}$ is a non-polar molecule. Hence only london dispersion force exists between $C_{2}H_{6}$ and $NH_{3}$ .

So, order of miscibility: $HF>CH_{2}NH>CH_{3}I>C_{2}H_{6}$

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3 years ago

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