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
lidiya [134]
3 years ago
9

If the pH is 9, what is the concentration of hydroxide ion?

Chemistry
1 answer:
Serga [27]3 years ago
6 0

Answer:

10^-5

Explanation:

pOH=14-pH

=14-9

=5

=>-log(pOH)=5

=>OH=10^-5

You might be interested in
When a glow stick is crushed and shaken, the two liquids mix and the stick glows.
Mars2501 [29]

Answer:

A chemical change has occurred, with energy being given off.

Explanation:

The liquids mix and the stick gives off energy in light form

3 0
3 years ago
Please someone help me pleasee? I’ll give brainlist:(
alina1380 [7]
Brad was suffering from HYPERthermia because his temp was 41°C which is equivalent to 106°F. His body temperature in kelvins is 314.15K
4 0
3 years ago
Which element has the lowest first ionization energy? (F), (Li), (Fr), (Rb)?
Mariulka [41]

Answer:

Fr

Explanation:

Francium (Fr) has the lowest ionization energy, with a value of 4.0727eV. This ionization energy increases as one advances in a period, being greater in the group of nonmetals.

6 0
3 years ago
How many calories are absorbed in a process that absorbs 0.128 joules?
Y_Kistochka [10]
The answer is A :) your welcome hope this helps
3 0
3 years ago
PLEASE HELP ME!!! NEED THE ANSWER FAST! WILL CHOOSE THE BRAINLIEST!!!
Vlad [161]
Remember that a cation will be smaller than its neutral atom, and an anion will be larger than its neutral atom. This would automatically eliminate answer choices A and D.

Also keep in mind that atomic radii decreases from left to right as you move along a periodic table. It also decreases from bottom up. 
Atomic radii increases as you move from right to left and as you go from up to down.

As bromine is higher up in the periodic table than Iodine, it would have a smaller radius. Iodine would have a larger radius.

The correct answer is B. Br
8 0
3 years ago
Other questions:
  • What is the Celsius temperature of 1 mole of a gas that has an average kinetic energy of 4,290 joules?
    10·1 answer
  • How does density change as you go deeper in earth
    15·1 answer
  • What is the last element in period 4?
    7·1 answer
  • Give an example of a purely physical change and an example of a chemical change
    8·1 answer
  • the reaction between aluminum and iron(iii) oxide can generate temperatures approaching 3000c and is used in welding metals. In
    13·1 answer
  • Write a balanced equation for the single-replacement oxidation-reduction reaction described, using the smallest possible integer
    7·1 answer
  • What is the mass in grams of 1.8 mol of Magnesium Sulfide?
    13·1 answer
  • What are the uses of hydrogen? ​
    8·2 answers
  • How many moles of dipyrithione are in 29.0 g of dipyrithione?
    14·1 answer
  • In which state of matter are particles packed tightly together in fixed positions?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!