Question 2 (4 points)
(03.05 LC)
Match the term with its description. (4 points)
<...
![Chemistry](/tpl/images/cats/himiya.png)
Question 2 (4 points)
(03.05 LC)
Match the term with its description. (4 points)
Column A
1.
Acid
:
Acid
2.
Base
:
Base
3.
pH
:
pH
4.
Litmus paper
:
Litmus paper
Column B
a.
A value from 0 to 14 that is used to specify how acidic or basic a compound is when it is dissolved in water
b.
Used to measure the pH of substances by determining their hydrogen ion concentration
c.
A compound that increases hydrogen ions (H+) when it is dissolved in a solution
d.
A compound that increases hydroxide ions (OH-) when it is dissolved in a solution
Question 3 (2 points)
(03.05 MC)
Which description is not a property of an acid? (2 points)
a
Turns litmus paper red
b
Bitter taste
c
Corrosive
d
Dissolves metals
Question 4 (2 points)
(03.05 MC)
Which description is not a property of a base? (2 points)
a
pH lower than 7
b
Turns litmus paper blue
c
Bitter taste
d
Slimy feel
Question 5 (2 points)
(03.05 MC)
Which item is made from an acidic ingredient? (2 points)
a
Detergent
b
Soap
c
Ammonia
d
Vinegar
Question 6 (2 points)
(03.05 MC)
Which substances will make a salt when combined? (2 points)
a
Vinegar and antacids
b
Soda and wine
c
Soap and ammonia
d
Fertilizer and detergent
Question 7 (2 points)
(03.05 MC)
Which description of salt is a chemical property? (2 points)
a
No combustion
b
Odorless
c
Salty taste
d
Solid does not conduct electricity
Question 8 (2 points)
(03.05 MC)
Complete the sentence. When an acid is added to water, hydroxide ions . (2 points)
a
increase
b
decrease
c
stay the same
d
disappear
Question 9 (2 points)
(03.05 MC)
Complete the sentence. The higher the hydrogen ion concentration, the the pH. (2 points)
a
higher
b
lower
c
closer to 7
d
closer to 14
![answer](/tpl/images/cats/otvet.png)
Answers: 3
Other questions on the subject: Chemistry
![image](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 02:30, milesjreece3939
Select each correct answer. more than one answer may be correct. which of the following is a characteristic of unicellular organisms? they can possess tissues and organs. all of their functions are performed by a single cell. they are usually microscopic. each of their cells is specialized to perform a specific function.
Answers: 1
![image](/tpl/images/cats/himiya.png)
![image](/tpl/images/cats/himiya.png)
![image](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 10:30, Brookwiggington8814
What woukd most likely be the transmittance at a 0.70 m solution of solute a? a) 7.6%b) 1.1%c)4.0%d)4.6%
Answers: 1
Do you know the correct answer?
Questions in other subjects:
![Konu](/tpl/images/cats/ekonomika.png)
![Konu](/tpl/images/cats/fizika.png)
![Konu](/tpl/images/cats/ekonomika.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/biologiya.png)
![Konu](/tpl/images/cats/ekonomika.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/himiya.png)
![Konu](/tpl/images/cats/en.png)
English, 30.03.2020 20:26