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
kow [346]
3 years ago
14

Missing words please help me

Chemistry
2 answers:
Elina [12.6K]3 years ago
8 0

The first one is 206 then move, body, then protects, calcium,strong,blobs

kolezko [41]3 years ago
7 0
There are
206
bones in the human skeleton. Our bones are very
strong
the skeleton does three very important jobs. It helps us to
move
around, it supports the
body
and it
protects
the organs inside the body. Bones are made from
calcium
and they are very hard. They are
alive
and grow with us. Witought our skeletons, we would look like
blobs



You might be interested in
Hydrobromic acid, HBr, is a strong acid. Hydrofluoric acid, HF, is a weak acid. If you prepared equal
snow_tiger [21]
HBr and HF are both monoprotic Arrhenius acids—that is, in aqueous solution, they dissociate and ionize to give hydrogen ions. A strong acid ionizes completely; a weak acid ionizes partially.

In this case, HBr, being a strong acid, would ionize completely in water to yield H+ and Br- ions. However, HF, being a weak acid, would ionize only to a limited extent: some of the HF molecules will ionize into H+ and F- ions, but most of the HF will remain undissociated.

pH is, by definition, a measurement of the concentration of hydrogen ions in solution (pH = -log[H+]). A higher concentration of hydrogen ions gives a lower pH, while a lower concentration of hydrogen ions gives a higher pH. At 25 °C, a pH of 7 indicates a neutral solution; a pH less than 7 indicates an acidic solution; and a pH greater than 7 indicates a basic solution.

If we have equal concentrations of HBr and HF, then the HBr solution will have a greater concentration of hydrogen ions in solution than the HF solution. Consequently, the pH of the HBr solution will be less than the pH of the HF solution.

Choice A is incorrect: Strong acids like HBr dissociate completely, not partially.

Choice B is incorrect: While the initial concentration of HBr and HF are the same, the H+ concentration in the HBr solution is greater. Since pH is a function of H+ concentration, the pH of the two solutions cannot be the same.

Choice C is correct: A greater H+ concentration gives a lower pH value. The HBr solution has the greater H+ concentration. Thus, the pH of the HBr solution would be less than that of the HF solution.

Choice D is incorrect for the reason why choice C is correct.

4 0
2 years ago
Halogens on directly opposite carbons in a benzene ring are in the:
Naddik [55]
I think it is Para-position.
4 0
3 years ago
Describe one advantage and one disadvantage of replacing standard bulbs with led lighting
Leno4ka [110]
Advantages

less wasted energy

Reduces fossilisation

Disadvantages

- Expensive

- doesn't look nice ( apparently)



7 0
3 years ago
Describe a way to separate iron filings from sand.
nikklg [1K]
Use a magnet to separate the iron from the sand.
8 0
3 years ago
Read 2 more answers
Think about the clouds in the water cycle. Where does the water cycle begin?
Tanzania [10]
<span>The water cycle has no starting point. But, we'll begin in the oceans, since that is where most of Earth's water exists</span>
7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the volume of a square pyramid with base edges of 40 cm and a slant height of 25 cm? (1 point 533.3 cm3 8,000 cm3 12,000
    5·1 answer
  • What is the atomic mass of an element if 4.00 grams of it contains 2.98x1022 atoms ?
    15·2 answers
  • Why is the use of pesticides on soils and
    13·2 answers
  • As an alternative to ear tags and lip tattoos, tetracycline (an antibiotic) is used to mark polar bears. The advantages of using
    7·1 answer
  • Lewis structures are used to represent ___.
    14·2 answers
  • Match the type of atomic bond with the correct definition.Ionic BondMatch the type of atomic bond with the correct definition.Io
    5·1 answer
  • What happens if you mix Hydrochloric Acid (HCl) and Sodium Bicarbonate (NaHCO3 ) together?
    8·2 answers
  • Does an object that feels cold to the touch contain thermal energy? explain your answer.
    13·1 answer
  • Which structure is the sun located
    5·1 answer
  • Based on the passage, which words best describe Captain Ahab?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!