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
wariber [46]
3 years ago
10

Which scientist proposed the model of an atom as a solid sphere?

Chemistry
1 answer:
MaRussiya [10]3 years ago
6 0

Answer:

John Dalton

Explanation:

The Solid Sphere Model was the first atomic model and was developed by John Dalton in the early 19th century. He hypothesized that an atom is a solid sphere that could not be divided into smaller particles.

You might be interested in
PLEASE HELP MEEE I WILL MARK BRAINLIST FOR THIS ITS SUPER SIMPLE....BUT U MUST TYPE EVERYTHING
frozen [14]
POPULATION SIZE DECREASE

Population size can increase, but it can also decrease.

We know that amount of resources available affects the population size.


Natural disasters such as floods,fires,volcanic eruptions, can also affect the population size.


Sometimes the population size will decrease so much that it threatens the entire species.
6 0
3 years ago
Show a correct numerical setup for calculating the
valkas [14]

0.25 moles of CO2 is present in 11 grams of CO2.

Explanation:

A mole represents the number of chemical entities in an element or molecule.

Number of moles of an element or molecule is determined by the formula:

The Number of moles (n) = weight of the atom given  ÷ atomic or molecular weight of the one mole of the element or molecule.

Themolar mass of one mole of carbon dioxide is:

12+ ( 16×2)

= 44 gram/mole

The given weight is 44 grams of carbon dioxide.

Putting the values in the equation,

n= 11 gms÷44 gms/ mole

n   = 0.25 mole

7 0
3 years ago
Give two possible sets of four quantum numbers for the electron in hydrogen when it is in its lowest energy state.
konstantin123 [22]

Answer:

Explanation:

The electron in the lowest energy state will be found in 1 s energy level.

set of 4 possible quantum numbers

Principal quantum no : n = 1 ,

Azimuthal quantum no l = 0

Magnetic quantum no m = 0

Spin quantum no  s = + 1/2

set of other quantum nos

Principal quantum no : n = 1 ,

Azimuthal quantum no l = 0

Magnetic quantum no m = 0

Spin quantum no  s = - 1/2

4 0
2 years ago
Which of these statements is not true about chemical reaction rates?
xeze [42]
Temperature can change a reaction rate because adding or taking away heat means energy is being added or taken away. When energy is added, the particles speed up, so there is a greater chance of the reactants colliding to form the products, which increases the reaction rate. When energy is taken away, the particles more slower, so they don't collide as easily, which slows down the reaction rate.

Therefore, the answer is D.
3 0
2 years ago
Read 2 more answers
El amoniaco y el fluor reaccionan para formar tetrafluoruro de dinitrogeno y fluoruro de hidrogeno. segun la reaccion: NH3 + F2
White raven [17]

Answer:

son 12.6 gramos de HF

Explanation:

Tienes que saber qual es el reactor limitante en este caso es fluoruro con los 20 gramos puedes producer .631 mol qual son 12.6 gramos

5 0
3 years ago
Other questions:
  • Can this reaction take place/does it exist - . CaCl2+CO2+H20----> CaCO3 + 2HCl
    7·1 answer
  • Facts about the outer core
    10·1 answer
  • Stars were classified first by the strength of the hydrogen lines in their spectra, and then by temperature. Which arrangement o
    14·1 answer
  • Which would increase the amount of dissolved oxygen in a pond
    8·1 answer
  • What is the average kinetic energy of 1 mole of gas at 0 degrees kelvin
    12·1 answer
  • The last answer choice us D. Adding more of the chemical will hear the water but only up to a certain temperature
    15·1 answer
  • CH4(g) + 2O2(g) = CO2(g) + 2H2O(g)
    14·1 answer
  • Which of the following is a unit of mass?
    10·1 answer
  • Help plz I need it as soon as possible
    15·1 answer
  • What will happen if a solution of sodium hydrocarbonate is heated give the equation of the reaction involved.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!