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
siniylev [52]
3 years ago
13

How many kilometers are there in 4.5 x 10^3 meters ?

Chemistry
1 answer:
Len [333]3 years ago
7 0
1 meter = .001 kilometers so 4.5 x 10^3 = 4500 so .001 x 4500 = 4.5 kilo
You might be interested in
Define shielding and effective nuclear charge. What is the connection between the two?
ivolga24 [154]

Answer:

The relation between the shielding and effective nuclear charge is given as

Z_{eff} = Z -S

where s denote shielding

z_{eff} denote effective nuclear charge

Z - atomic number

Explanation:

shielding is referred to as the repulsion of an outermost electron to the pull of electron from valence shell.  Higher the electron in valence shell higher will be the shielding effects.  

Effective nuclear charge is the amount of net positive charge that valence electron has.

The relation between the shielding and the effective nuclear charge is given as  

Z_{eff} = Z -S

wheres denote shielding

z_{eff} denote effective nuclear charge  

Z - atomic number

8 0
3 years ago
Are these right? U guys r the best on this app!!
Pepsi [2]
Yes, they are right.Very good hand writing! You did a very great job on showing your work.
8 0
3 years ago
Read 2 more answers
Picture of gas laws question below:
Vera_Pavlovna [14]

Volume of the tank is 5.5 litres.

Explanation:

mass of the CO2 is given 8.6 grams

Pressure of the gas is 89 Kilopascal which is 0.8762 atm

Temperature of the gas is 29 degrees ( 0 degrees +273.5= K) so (29+273)

R = gas constant 0.0821 liter atmosphere per kelvin)

FROM THE IDEAL GAS LAW

PV=nRT ( P Pressure, V Volume, n is number of moles of gas, R gas constant, Temperature in Kelvin)

no of moles = mass/atomic mass

                    =  8.6/44

                    = 0.195 moles

now putting the values in equation

V=nRT/P

  = 0.195*0.0821*302/ 0.8762

  = 5.5 litres.

As the carbon dioxide gas occupies the volume os the tank hence volume of tank is 5.5 litres.

4 0
3 years ago
What does the symbol Pt mean in a chemical equation in chemistry?
uysha [10]

Explanation:

It is mean Platinum .

hope to helped.

5 0
3 years ago
What is the mass percentage of carbon in 5.000 G of sucrose
Crank
17) 8.4 / 20 x 100

18) 20 . 0.5150

19) 6,50% because (as you said) the law of definite proportions states that regardless of the amount, a compound is always composed of the same elements in the same proportion by mass
3 0
3 years ago
Read 2 more answers
Other questions:
  • When traveling from oxygen to sulfur to selenium, through this group in the periodic table, what is changing?
    14·2 answers
  • For a 0.50 molal solution of sucrose in water, calculate the freezing point and the boiling point of the solution.
    10·1 answer
  • PLZ HELP ME. This is my second time posting my question because the first time a person put a random answer. If you do not know
    7·2 answers
  • 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
  • How many pairs of electrons are shared by adjacent carbon atoms in an alkane?
    5·2 answers
  • Which of the following is an example of Newton’s 2nd Law? A. A bowling ball requires more force to roll than a tennis ball B. Si
    12·1 answer
  • Define the concentration measurements of parts per million
    5·1 answer
  • What would be the effect of each of the following sources of error on the molarity of H2SO4 determined in this experiment? State
    6·1 answer
  • How many molecules are there in 0.661 mol of O2 gas?
    9·1 answer
  • 이
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!