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Assoli18 [71]
2 years ago
13

Unlike an acid, an aqueous solution of a base

Chemistry
1 answer:
HACTEHA [7]2 years ago
3 0

Answer:

D) contains more OH– ions than H+ ions

Explanation:

THESE ARE THE OPTIONS FOR THE QUESTION

A) causes some indicators to change color B) conducts electricity C) contains more H+ ions than OH– ions D) contains more OH– ions than H+ ions

Base can be regarded as substance which can dissociates in water then form hydroxide ions (OH–) .

Bases can be regarded as compounds which break into hydroxide ions I.e (OH-) with more other compounds if put in an aqueous solution. Hence it contains more OH– ions

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Question 3 (1 point)
antoniya [11.8K]

An electrochemical process involves any process that has to do with the transfer of elecrons.

<h3>What is an elecrochemical process?</h3>

An electrochemical process involves any process that has to do with the transfer of elecrons. These process include redo reactionand electron transport chains.

It is a true statement that the actiivity series helps to detect the products in a reaction because a metal that is lower in the series is always displaced by a metal that is higher in the series.

Learn more about electrochemical processess: brainly.com/question/12034258

6 0
2 years ago
2. Which one is the modal class?
Sonja [21]

Answer:

a.3-5 is the modal class.

7 0
3 years ago
Which of the following are the inputs needed for photosynthesis? Choose the three correct answers.
LiRa [457]
A, C, D are the answers
4 0
3 years ago
How many moles of plutonium
bixtya [17]

0.139 moles of plutonium are present in a sample containing 8.4 x 10²² atoms of Pt.

<h3>How to calculate number of moles?</h3>

The number of moles of a substance can be calculated using the following expression:

no of moles = no of molecules ÷ 6.02 × 10²³

According to this question, 8.4 × 10²² atoms of plutonium are present in the molecule of plutonium.

no of moles = 8.4 × 10²² = 6.02 × 10²³

no of moles = 1.39 × 10-¹

no of moles = 0.139moles

Therefore, 0.139 moles of plutonium are present in a sample containing 8.4 x 10²² atoms of Pt.

Learn more about no of moles at: brainly.com/question/14919968

#SPJ1

4 0
2 years ago
The concentration of commercially available concentrated nitric acid is 70.0 percent by mass, or 15.9 M. Calculate the density a
dmitriy555 [2]

Answer:

Density of solution = 1.43 g/mL

Molality → mol/kg = 37 m

Explanation:

The solute is HNO₃

Molar mass → 63 g/mol

70 % by mass → 70 g of solute / 100 g of solution

We convert the mass of HNO₃ to moles → 70 g / 63 g/mol = 1.11 moles

So let's apply molarity to find out the volume of our moles.

Molarity (M)  = mol/L →  mol / M  = L → 1.11  mol / 15.9 M = 0.070 L

This is the volume for solution. We can convert it from L to mL

0.070 L . 1000 mL / 1L = 70 mL

As the mass of solution = 100 g → Density = Mass/Volume

100g / 70 mL = 1.43 g/mL

Molality → mol of solute / kg of solvent

Solution mass = 100 g → Mass of solute + Mass of solvent

Mass of solvent = 30 g

We convert the mass of solvent from g to kg → 30 g . 1kg / 1000 g = 0.030 kg

Molality (mol/kg) → 1.11 mol / 0.030 kg = 37 m

5 0
3 years ago
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