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3 years ago

Which substance is a binary acid?

Chemistry

2 answers:

Reil [10]3 years ago

5 0

Answer:

phosphoric

Explanation:

pls mark me as brainliest

IceJOKER [234]3 years ago

4 0

Answer:

hydrochloric acid is a substance that is a binary acid .

<h3>marke a brainlist </h3>

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Name the compound that makes up the white ring

Brut [27]

Answer:

ammonium chloride

Explanation:

if it's the white ring I think your talking abt

3 0

3 years ago

Read 2 more answers

Calculate the electrical energy per gram of anode material for the following reaction at 298 K:

solmaris [256]

43.8 kJ

<h3>Explanation</h3>

There are two electrodes in a voltaic cell. Which one is the anode?

The lithium atom used to have no oxygen atoms when it was on the reactant side. It gains two oxygen atoms after the reaction. It has gained more oxygen atoms than the manganese atom. Gaining oxygen is oxidation. As a result, lithium is being oxidized.

Oxidation takes place at the anode of a cell. Therefore, the anode of this cell is made of lithium.

Lithium has an atomic mass of 6.94. Each gram of Li would contain 1/6.94 = 0.144 moles of Li atoms. Each Li atom loses one electron in this cell. Therefore, the number of electron transferred, n, equals 0.144 moles for each gram of the anode.

Let $w_\text{max}$ represents the electrical energy produced.

$w_\text{max} = n \cdot F \cdot E_\text{cell}$ , where

n is the number of moles electrons transferred,
F is the Faraday's constant,
E $_\text{cell}$ is the cell potential,

n = 0.144 mol, as shown above, and

F = 96.486 kJ / ( $\text{V} \cdot \text{mol} \; \text{e}^{-}$ ).

Therefore,

$w_\text{max} = n \cdot F \cdot E\\\phantom{w_\text{max}} = 0.144 \times 96.486 \times 3.15 \\\phantom{w_\text{max}} = 43.8 \; \text{kJ}$ .

3 0

3 years ago

Picture this in your mind as you read it: You weigh an empty, clean, dry beaker on the balance (scale). It weighs 32.15 grams. Y

AleksAgata [21]

Answer:

2.25 g

Explanation:

The mass of the solid X must be the total mass (beaker + solid X) less than the mass of the beaker. Then:

mass of the solid X = 34.40 - 32.15

mass of the solid X = 2.25 g

The difference of 0.25 g must occur for several problems: an incorrect weight in the balance, the configuration of the balance, the solid can be hydrophilic and absorbs water, and others.

6 0

3 years ago

A small cylinder of helium gas used for filling balloons has a volume of 2.20 L and a pressure of 14300 kPa at 25 ∘C. Part A How

Korvikt [17]

Answer:

You can fill 212 balloons.

Explanation:

First we calculate the helium moles in the small cylinder, using PV=nRT:

P = 14300 kPa ⇒ 14300 * 0.009869 = 141.13 atm

V = 2.20 L

n = ?

R = 0.082 atm·L·mol⁻¹·K⁻¹

T = 25 °C ⇒ 25 + 273.16 = 298.16 K

141.13 atm * 2.20 L = n * 0.082 atm·L·mol⁻¹·K⁻¹ * 298.16 K

n = 12.70 mol

Then we calculate the number of moles that can fit in a single balloon:

1.22 atm * 1.20 L = n * 0.082 atm·L·mol⁻¹·K⁻¹ * 298.16 K

n = 0.0599 mol

Finally we divide the total number of available moles by the number of moles in a single balloon:

12.70 mol / 0.0599 mol = 212.09

So the answer is that you can fill 212 balloons.

7 0

2 years ago

PLEASEEEEE HELP ME ON QUESTION 8 ASAP!!!!!!!!!!!!!!!!!!! GIVING 20 POINTS

spayn [35]

Answer:

I am pretty sure the correct answer is a reproductive system

3 0

2 years ago