All categories

2 years ago

Acid formulas can be distinguished from base formulas because acid formulas usually and base formulas .

Chemistry

1 answer:

sineoko [7]2 years ago

3 0

Answer:

A. begin with hydrogen; pair a metal with a hydroxide ion

Explanation:

Acid can be distinguished from base on the basis of formulas in such a way that acid formula start with hydrogen.

For example:

Hydrochloric acid is strong acid. Its formula is HCl.

It start with hydrogen

Sulfuric acid is acid. Its formula is H₂SO₄

it is also start with hydrogen.

Base:

Base is distinguish from acid in such a way that in base formula metal is pair with hydroxide ion.

For example:

Sodium hydroxide is base. Its formula is NaOH.

sodium is metal while OH is hydroxide ion.

Potassium hydroxide is base. its formula is KOH.

potassium is metal and OH is hydroxide ion.

You might be interested in

Given the law of conservation of energy, what happens when a 200°C iron bar is placed in thermal contact with a 30°C block of wo

kozerog [31]

Answer:

The correct answer is A Energy leaves the iron bar and enters the wood until the temperature are equal.

Explanation:

According to the law of conservation of energy or the first law thermodynamics energy neither be created nor destroyed, energy is transferred from one form to another form.

Here iron bar is placed in wood block energy is transferred from iron bar to wood until the temperatures are equal.

7 0

3 years ago

All of the following are true of carbohydrates except

Evgen [1.6K]

3. they make up larger compounds like fats and amino acids, would be the correct answer.

5 0

2 years ago

Read 2 more answers

Write the ionization equation for hypochlorous acid, HClO, dissolved in water.

Pavel [41]

Answer:

HClO (l) → H⁺ (aq) + ClO⁻ (aq)

proton and hypochlorite.

Explanation:

HClO (Hypochlorous acid)

This is a weak acid that can be dissociated as this:

HClO (l) → H⁺ (aq) + ClO⁻ (aq)

proton and hypochlorite.

It is a weak acid, so it can adopt a Ka for its equilibrium

HClO + H₂O ⇄ H₃O⁺ + ClO⁻ Ka

Molar mass = 52.46 g/m

5 0

2 years ago

What dissolved species are present in a solution of NaClO4?

Nadusha1986 [10]

Assuming that the solution is simply an aqueous solution so that it is purely made of NaClO4 (the solute) and water (the solvent), then I believe the dissolved species would only be the ions of NaClO4, these are:

Na+

ClO4 -

3 0

2 years ago

If the cylindrical pistons are 25.000 cm in diameter at 20.0 ∘c, what should be the minimum diameter of the cylinders at that te

attashe74 [19]

Refer to the diagram shown below.

The piston supports the same load W at both temperatures.
The ideal gas law is
$pV=nRT$
where
p = pressure
V = volume
n = moles
T = temperature
R = gas constant

State 1:
T₁ = 20 C = 20+273 = 293 K
d₁ = 25 cm piston diameter

State 2:
T₂ = 150 C = 423 K
d₂ = piston diameter

Because V, n, and R remain the same between the two temperatures, therefore
$\frac{p_{1}}{T_{1}} = \frac{p_{2}}{T_{2}}$

If the supported load is W kg, then
$p_{1} = \frac{W \, N}{ \frac{\pi}{4} d_{1}^{2}} = \frac{4W \, N}{\pi (0.25 \, m)^{2}} = 20.3718W \, Pa$
Similarly,
$p_{2} = \frac{4W}{\pi d_{2}^{2}} \, Pa$

$\frac{p_{1}}{p_{2}} = \frac{20.3718 \pi d_{2}^{2}}{4} = 16 d_{2}^{2}$

Because p₁/p₂ = T₁/T₂, therefore
$16d_{2}^{2} = \frac{293}{423} \\\\ d_{2}^{2} = \frac{0.6927}{16} \\\\ d_{2} = 0.2081 \, m$

The minimum piston diameter at 150 C is 20.8 cm.

Answer: 20.8 cm diameter

8 0

3 years ago