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
Elodia [21]
3 years ago
7

Protons and neutrons are composed of what? A electrons B.quarks C.ions D.molecules

Chemistry
2 answers:
leonid [27]3 years ago
6 0
B. Quarks is the answer.
drek231 [11]3 years ago
3 0
Protons and neutrons are made up of quarks. 

B.
You might be interested in
2.5 moles of sodium chloride is dissolved to make 0.050 liters of solution
Hitman42 [59]

The answer is:

the molarity = 50 moles/liters

The explanation:

when the molarity is = the number of moles / volume per liters.

and when the number of moles =2.5 moles

and the volume per liters = 0.05 L

so by substitution:

the molarity = 2.5moles/0.05L

                    = 50 moles /L

7 0
3 years ago
Which family contains elements with a full octet of valence electrons?
iren [92.7K]
D. the noble gasses !!!!
5 0
3 years ago
Read 2 more answers
7. Buffalo were moved from Yellowstone National Park because
STALIN [3.7K]

Answer:

they had killed other animals

4 0
3 years ago
Read 2 more answers
A sample of hydrogen occupies a volume of 351 mL at a temperature of 20 degrees Celsius. What is the new volume if the temperatu
xeze [42]
Volume of Hydrogen V1 = 351mL 
Temperature T1 = 20 = 20 + 273 = 293 K 
Temperature T2 = 38 = 38 + 273 = 311 K 
We have V1 x T2 = V2 x T1 
So V2 = (V1 x T2) / T1 = (351 x 311) / 293 = 372.56 
Volume at 38 C = 373 ml
6 0
3 years ago
Find [OH-], pH and pOH of a solution where [H+]=7.2x10-2M
Mamont248 [21]
pH: 1.14266750357
pOH: 12.8573324964
[H+]: 0.072
[OH-]: 1.38888888889E-13 acid
4 0
3 years ago
Other questions:
  • Help me to balance this equations pls!<br> C3H8 02 CO+H20<br> Thank you
    12·1 answer
  • Why whale vomit is so important?
    12·2 answers
  • What is the importance of measuring the age of fingerprints
    11·1 answer
  • As you move from left to right across a period, what happens to the atomic radil?
    5·1 answer
  • a brick measures 25cm by 12cm by 13cm. What is the volume of the brick in cm cubed? how many milliliters of water would this bri
    8·1 answer
  • How was island hopping a change in strategy for the us military?
    10·1 answer
  • In an isolated system:
    14·1 answer
  • What is the specific heat of a substance if 1560 cal are required to raise temperature of a 312 g substance by 15 degrees celsiu
    12·1 answer
  • A student is given 1.525 g of pure CuO. To recover the Cu present in the compound, the dark powdery solid was dissolved in 15.0
    8·1 answer
  • Compounds X has the formula C7H15Cl; Y is C7H15Br. X undergoes base-promoted E2 elimination to give a single alkene product Z. Y
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!