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
ELEN [110]
4 years ago
7

Someone help me please!

Chemistry
1 answer:
sveticcg [70]4 years ago
5 0

3 9 0 4 5 4 7 8 9 3 7 2 6 7 1 44 22 9 8 33 1 6 that's all i know from there.

You might be interested in
What is the osmotic pressure of a 100 ml of toluene solution that contains a total of 0.005 moles of a polymer dissolved in it a
allsm [11]

Osmotic pressure is the pressure that would have to be applied to a pure solvent to prevent it from passing into a given solution by osmosis.

That can be mathematical computed from the expression:

Osmotic pressure=C×R×T

Where,

C= Concentration

R=Gas constant

T=Temperature

Concentration=Number of moles of solute/Volume(L)

=0.005*1000/100

=0.05

R= 0.08206 atm L/mol K

T=25+273

=298

Osmotic pressure= 0.05×0.08206×298

=1.2 atm

4 0
3 years ago
Please answer both questions.
Deffense [45]

Answer:

1)Krypton

2)11H

Explanation:

electrons=protons

protons=atomic number

mass number=protons+neutrons

mass number is the superscript

atomic number is the subscript.

1)The answer is Krypton because its atomic number= number of protons=number of electrons is 36.

mass number is 46+36=82.

2)subscript=atomic number=number of protons=number of electrons

i. H = electrons=1

=neutrons=0

ii. Cl=electrons=17

=neutrons=35-17=18

iii. Na=electrons=11

=neutrons=23-11= 12

so the answer is Hydrogen because it has 1 electron and 0 neutron.

I hope this helps.

6 0
3 years ago
PLEASE HELP WITH ENVI SCI QUESTION
Vladimir79 [104]
Different types of acid deposition are

sulphur dioxide
nitroges oxides
3 0
4 years ago
A substance made of both metal and nonmetal atoms ?
Nat2105 [25]
A metalloid is a metal and a nonmetal
6 0
4 years ago
Taryn has a 90-gram sample of ethanol, which has a specific heat of
Angelina_Jolie [31]
35 Celsius minus the average 20 Celsius.  going to be  15. let me know if u need anything else.
7 0
3 years ago
Other questions:
  • Water difference between glacier and geyser
    11·2 answers
  • What is a physical change?
    12·2 answers
  • Benzene and toluene form ideal solutions. Consider a solution of benzene and toluene prepared at 25∘C. As suming that the mole f
    13·2 answers
  • Calculate the entropy change for the surroundings of the reaction below at 350K: N2(g) + 3H2(g) -> 2NH3(g) Entropy data: NH3
    7·1 answer
  • A stick of butter is melted in a saucepan. As it continues to cook, the butter turns brown. What changes have occurred?
    9·2 answers
  • How many molecules are in 7V205?​
    10·1 answer
  • BRAINILY ANSWER NOW OLEASE I NEED HELP
    13·2 answers
  • 14. Which of the following alkanols on oxidation is most likely to yield the
    6·2 answers
  • 3. A helium laser emits light with a wavelength of 6.33 x 10^-7m. What is
    12·1 answer
  • Which of the following is a physical model of the Sun? A. an equation that describes the Sun’s motion B. a chart that lists the
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!