1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Marrrta [24]
3 years ago
6

Which one of the following is a base?A. HCI B.Cu(OH)2 C.HNO3 D.HC2H3O2​

Chemistry
2 answers:
bulgar [2K]3 years ago
8 0

Answer:

Option B - Cu(OH)2. is your answer.

DedPeter [7]3 years ago
5 0

Answer:

b. Cu(OH)2

Explanation:

As it is having Hydroxil ions(OH).

You might be interested in
Nault 25000L 250 our = 25000L 15040 8. How many grams of CaCl2 are needed to make 150.0 mL of a 0.500 M CF solution? (Note: CaCl
yuradex [85]

Answer:

You need 8,324 g of CaCl₂ yo make this solution

Explanation:

Molarity is a way to express concentration in a solution, in units of moles of solute per liter of solution.

To know the grams of CaCl₂ it is necessary to know, first, the moles of this substance with the desired volume and concentration , thus:

0,1500 L × \frac{0,500 mol}{L} = 0,075 CaCl₂ moles

Now, with the molar mass of CaCl₂ you will obtain the necessary grams, thus:

0,075 CaCl₂ moles  × \frac{110,98 g}{mol} = 8,324 g of CaCl₂

So, you need <em>8,324 g of CaCl₂</em> to make 150,0 mL of a 0,500M solution

I hope it helps!

3 0
3 years ago
Do this Q7 if someone do I will her or him brainliest
Simora [160]

The average speed :

1. 10.44 m/s

2. 10.42 m/s

3. 9.26 m/s

The distance 100 m have the greatest average speed

<h3>Further explanation </h3>

Given

Distance and time of runner

Required

Average speed

Solution

<em> Average speed : total distance : total time </em>

1. d = 100 m, t = 9.58 s

Average speed : 100 : 9.58 = 10.44 m/s

2. d=200 m, t=19.19 s

Average speed : 200 : 19.19 = 10.42 m/s

3. d=400 m, t = 43.18 s

Average speed : 400 : 43.18 = 9.26 m/s

The distance 100 m have the greatest average speed

7 0
2 years ago
What element has the electron configuration below? *<br><br> please help me
timofeeve [1]

Answer:

Symbol Ar

Group 18

Electron configuration- 1s² 2s² 3p6 3s² 3p6

Explanation:

The 6 is small and will be placed in top but I don't have the option that's why I wrote like that

8 0
2 years ago
A solution is prepared by dissolving 0.23 mol of benzoic acid and 0.27 mol of sodium benzoate in water sufficient to yield 1.00
Monica [59]

Answer:

The pH does not decrease drastically because the NaOH reacts with the <u>D) Benzoic acid</u> present in the buffer solution.

Explanation:

The hydroxide ions will react with acidic part of the solutions, it means the benzoic acid, so it will form the conjugate base, the benzoate ion.

7 0
3 years ago
HELP HELP HELP ME THANKS SHAWTYS ​
saw5 [17]
It’s A



Rjrjdhdnndkejdhdhejekek
6 0
3 years ago
Other questions:
  • What impact does LED light have on the environment?
    13·1 answer
  • Please help!
    15·1 answer
  • Number of moles of Sn (l) produced when 4.0 moles of H2 (g) is completely consumed
    15·1 answer
  • How would an increase in total expenditures affect the nation's economy? A. It would cause an expansion. B. It would cause stagn
    13·1 answer
  • A plant fertilizer contains 15% by mass nitrogen (N). In a container of soluble plant food, there are 14.1 oz of fertilizer. How
    14·1 answer
  • How many grams of Sulfuric Acid are needed to produce 57.18 g of Lead (IV) Sulfate when being neutralized by a sufficient amount
    7·1 answer
  • PLS HELP ME WILL GIVE BRAIN THINGYYYYY
    6·1 answer
  • 1. What causes potential energy to change within a system?
    10·1 answer
  • Match the different methods used for calculating revenue and profit to the formulas used for calculating them. total revenue ave
    9·1 answer
  • Which of the following elements has the highest 1st ionization energy of all the periodic table elements?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!