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
mart [117]
3 years ago
14

What is the law of reciprocal proportion​

Chemistry
1 answer:
irina [24]3 years ago
7 0

If two different elements combine separately with a fixed mass of a third element, the ratio of the masses in which they do so are either the same as or a simple multiple of the ratio of the masses in which they combine with each other.

You might be interested in
H2 is a molecule, but H2O is a _____. 1.diatomic molecule, 2.compound, 3.neuron, 4.photon,
Sonbull [250]
H2O is a compound. So it's second one.
8 0
3 years ago
Which statement is true about SO4 2− ?
Nonamiya [84]
It is a poly atomic anion because it has more than one atom and a negative charge
4 0
3 years ago
Read 2 more answers
What is the name of group 5a
EastWind [94]

Answer:

It is called <em>Pnictogens</em><em>.</em>

Explanation:

This word is fro a greek word called <em>p</em><em>n</em><em>i</em><em>g</em><em>e</em><em>i</em><em>n</em><em> </em>which means <em>c</em><em>h</em><em>o</em><em>k</em><em>i</em><em>n</em><em>g</em><em> </em>due to a choking property of <em>n</em><em>i</em><em>t</em><em>r</em><em>o</em><em>g</em><em>e</em><em>n</em><em> </em><em>g</em><em>a</em><em>s</em><em> </em>when opposed to air with (oxygen).

5 0
3 years ago
The element Osminum has a density of 22.6 g/cm3. the mass of a block of Osmium with three sides of 1.01cmx0.223 cm x 0.648 cm is
Alika [10]
Volume of osmium = 1.01(0.223)(0.648) = 0.14595 cm3

Density = mass / volume
So density x volume = mass of osmium
22.6 x 0.14595 = 3.29845 g
6 0
3 years ago
The concentration of Rn−222 in the basement of a house is 1.45 × 10−6 mol/L. Assume the air remains static and calculate the con
bonufazy [111]

<u>Answer:</u> The concentration of radon after the given time is 3.83\times 10^{-30}mol/L

<u>Explanation:</u>

All the radioactive reactions follows first order kinetics.

The equation used to calculate half life for first order kinetics:

t_{1/2}=\frac{0.693}{k}

We are given:

t_{1/2}=3.82days

Putting values in above equation, we get:

k=\frac{0.693}{3.82}=0.181days^{-1}

Rate law expression for first order kinetics is given by the equation:

k=\frac{2.303}{t}\log\frac{[A_o]}{[A]}

where,  

k = rate constant = 0.181days^{-1}

t = time taken for decay process = 3.00 days

[A_o] = initial amount of the reactant = 1.45\times 10^{-6}mol/L

[A] = amount left after decay process =  ?

Putting values in above equation, we get:

0.181days^{-1}=\frac{2.303}{3.00days}\log\frac{1.45\times 10^{-6}}{[A]}

[A]=3.83\times 10^{-30}mol/L

Hence, the concentration of radon after the given time is 3.83\times 10^{-30}mol/L

7 0
4 years ago
Other questions:
  • An ostrich runs north in a straight line for 21 meters. She then turns around and runs 25 meters back toward her nest (south) on
    9·1 answer
  • The mass of a proton is 1.00728 amu andthat of a neutron is 1.00867 amu. What is the binding energy pernucleon (in J) of a Co nu
    10·1 answer
  • How does amount of greenhouse gases affect the temperature of the Earth's atmosphere?
    15·2 answers
  • How do catalysts increase the rate of a chemical reaction?
    5·2 answers
  • How is pressure affected as depth increases?
    6·1 answer
  • Using the accepted value for the volume of 1 gram of water at the temperature of the room that you reported above, what is the a
    12·1 answer
  • How many protons are in an atom of oxygen?<br><br><br> 6<br><br> 8<br><br> 16<br><br> 24
    6·1 answer
  • Something to be thankful for as science contribution
    7·2 answers
  • 18. What is the density of a substance with a mass of 0.90 kg and a volume of 1.2 mL?
    11·1 answer
  • A little help here please​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!