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
aliina [53]
3 years ago
15

HELP!! I NEED AN ANSWER!!

Chemistry
1 answer:
Ksju [112]3 years ago
6 0
Both are made of the same type of atoms
You might be interested in
Q1.What is the mass of 5 moles Of 1.Mg
ratelena [41]

Answer:

heyy sure just use the unitary method to get the answer

7 0
3 years ago
Read 2 more answers
calculate the freezing point of 3.46 gram of a compound X in 160 gram of benzene when a separate sample of X was vaporized it's
Temka [501]

Answer: The freezing point of 3.46 gram of a compound X in 160 gram of benzene is 4.38^0C

Explanation:

The relation of density and molar mass is:

d=\frac{PM}{RT}

where

d = density = 3.27 g/ L

P = pressure of the gas  = 773 torr = 1.02 atm   (760 torr = 1atm)

M = molar mass of the gas  = ?

T = temperature of the gas = 116^0C=(116+273)K=389K

R = gas constant  = 0.0821Latm/Kmol

M=\frac{dRT}{P}=\frac{3.27g/L\times 0.0821Latm/Kmol\times 389K}{1.02atm}=102.3g/mol

The relation of depression in freezing point with molality:

\Delta T_f=k_f\times m

\Delta T_f = depression in freezing point = T_f^0-T_f = 5.45-T_f

k_f = freezing point constant  = 5.1

m = molality = \frac{\text {moles of X}}{\text {weight of solvent in kg}}=\frac{3.46\times 1000}{102.3\times 160}=0.21

5.45-T_f=5.1\times 0.21

T_f=4.38^0C

Thus the freezing point of 3.46 gram of a compound X in 160 gram of benzene is 4.38^0C

5 0
3 years ago
How did admitting Mendeleev deal with elements that had not yet been discovered
Len [333]
Mendeleev organized his table by atomic mass, rather than atomic radius. He was able to extrapolate where certain undiscovered elements should be on the table based on that.

For example, he said that since Calcium has mass of 40g and Titanium has a mass of 48 g, there must be some element between them with atomic mass of 44 g. That was later discovers to be scandium.

Hope this helps
7 0
3 years ago
PLEASE HELP!!! I am taking a college chem class as a junior and have no idea how to do this!
kondaur [170]
Where’s the questions hun? I don’t even see the questions you need answered
4 0
3 years ago
Write the empirical formula of at least four binary ionic compounds that could be formed from the following ions: ,
Serga [27]
Bynari means that the compound is formed by two kind of elements.

You have listed three ions, V 5+, Cl - and O 2-.

Binary ionic compounds are formed by a positive ion and a negative ion, so the possible ionic compound formed by the listed ions are:

1) VCl5, where the number 5 next to Cl is a subscript.

2) V2O5, where the number 2 next to V and the number 5 next to O are subscripts.

Subscripts are used to indicate the number of atoms of each element in the formula.

So, the empirical formula searched are VCl5 and V2O5.

I can give you other examples with more ions.

Ca (2+) and S(2-) => Ca2S2 => CaS

Na(+) and F(-) => NaF

Cs(+) and Br(-) => CsBr


6 0
3 years ago
Other questions:
  • Which weak acid would be best to use when preparing a buffer solution with a ph of 9.20?
    14·2 answers
  • At the end of mitosis the cells produced are identical to each other is it True or False
    14·2 answers
  • A solution of 3 moles of carbon disulfide in 10 moles of ethyl acetate has a vapor pressure of 170 torr at 28°c. the vapor press
    11·1 answer
  • A radioactive isotope of vanadium, V, decays by producing a  particle and gamma ray. The nuclide formed has the atomic number:
    13·1 answer
  • For the following reaction, calculate how many moles of each product are formed when 0.356 moles of PbS completely react. Assume
    10·2 answers
  • Which subatomic particle is negatively charged?1.electron2.neutrons3.positron4.proton
    8·1 answer
  • How many moles of gold are Cleveland to 1.204×1024 atoms
    9·1 answer
  • Calculate the number of formula units in 1.87 mol of NH4Cl
    12·1 answer
  • Which particles are referred to as nucleons (subatomic particles located in the nucleus)?
    8·1 answer
  • Help me please urgently needed​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!