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
artcher [175]
3 years ago
6

Different isotopes of the same element must have a different

Chemistry
1 answer:
slega [8]3 years ago
6 0

Answer:

they must have same atomic number and different atomic mass

You might be interested in
) How many moles are there in 2.00 x 10^19 molecules of calcium phosphate?
Tamiku [17]

Answer:

\huge 3.322 \times  {10}^{ - 5}  \:  \: moles  \\

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L} \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{2.00 \times  {10}^{19} }{6.02 \times  {10}^{23} }  \\  \\  = 3.322 \times  {10}^{ - 5}  \:  \: moles

Hope this helps you

4 0
3 years ago
Find the element to match the electron configuration.
Naily [24]
1-Na
2-N
3-F
4-C
5-Ti(i guess)
6-Fe
5 0
3 years ago
During which change of state would the volume of a substance increase the most?
Alika [10]

Answer:

The most state has the high volume is the gas state.

So here the answer is vaporization!!!!

Explanation:

The most state has the high volume is the gas state.

So here the answer is between vaporization and sublimation???

and when the sublimation is: the change of the material from the solid state to the gas state directly without pass to liquid state from the solid first then to the gas

and the vaporization is : The change of the material from the liquid state to the gas state by heating Ex: water vaporize at 100°

here, the answer is sublimation because the difference of volume which resulted from this process is more than the volume resulted from vaporization.

Plz mark brainlist!!

4 0
3 years ago
Read 2 more answers
A student standardizes a solution of aqueous NaOH against a measured mass of solid potassium hydrogen phthalate. She then uses t
wlad13 [49]

Answer:

(D) Neither I nor II

Explanation:

The reagent potassium hydrogen phthalate is found in pure form and it is not partially hydrated .

The pallet form of NaOH ( solid form )  absorbs carbon dioxide gas from the atmosphere but NaOH in solution form does not absorb carbon dioxide .

Hence option D ) is right choice .

8 0
3 years ago
Atmospheric pressure decreases as altitude increases. in other words, there is more air pushing down on you at sea level, and th
LuckyWell [14K]
Boiling point is the temperature at which vapour pressure equals atmospheric pressure.

As, we move at higher altitudes, atmospheric pressure decreases. Hence, temperature to reach the boiling point will decrease.

Further, boiling point is higher for longer chain compounds. Hence,<span> octane (C8H18) and octanol (C8H17OH) will have higher boiling point as compared to hexane (C6H14). Further, intermolecular forces of interaction are more stronger in octanol, due to presence of OH group, as compared to octane.

Hence, boiling points will be in following order: 
                                              Octanol > Octane > Hexane

Thus, hexane will boil first, followed by octane and lastly octanol.
</span>
7 0
3 years ago
Other questions:
  • The extraction of pure copper is expensive. Give one reason why
    15·2 answers
  • I need HELP!!
    11·2 answers
  • Naphthalene, C10H8, melts at 80.2°C. If the vapour pressure of the liquid is 1.3 kPa at 85.8°C and 5.3 kPa at 119.3°C, use th
    12·1 answer
  • Francine makes several measurements of the mass of a metal block. The data set is shown in the table below. Measurement Mass of
    13·2 answers
  • 1. A compound is found to contain
    10·1 answer
  • Why do we have to reduce​
    13·1 answer
  • If the volume of a cylinder is reduced from 8.0 liters to 4.0 liters, the pressure of the gas in the cylinder will change from 7
    6·1 answer
  • can I get some help.and no link I have the table already I just need the information​. it's graded please​
    13·1 answer
  • Two posssible lewis structures for the molecule ch2s are given. determine the formal charge on each atom in both structures
    6·1 answer
  • How many moles are in 10 mg of NO2
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!