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
Allisa [31]
3 years ago
8

Who said atoms are neither created nor destroyed in chemical reactions?

Chemistry
1 answer:
san4es73 [151]3 years ago
8 0
John Dalton from 1803
You might be interested in
How do you determine the density of a substance or object?
Marizza181 [45]
Divide mass by volume
7 0
3 years ago
Read 2 more answers
A gas has a pressure of 3 atm at 350°C. What will its pressure be at 250°C? The volume and amount of gas is constant. Hint: Conv
vichka [17]

<u>We are given:</u>

P1 = 3 atm                  T1 = 623 K <em>(350 + 273)</em>

P2 = x atm                 T2 = 523 K <em>(250 + 273)</em>

<em />

<u>Solving for x:</u>

From the idea gas equation:

PV = nRT

since number of moles (n) , Volume (V) and the Universal Gas constant(R) are constants;

P / T = k   (where k is a constant)

the value of  k will be the same for a gas with variable pressure and temperature and constant moles and volume

Hence, we can say that:

P1 / T1 = P2 / T2

3 / 623 = x / 523

x = 523 * 3 / 623

x = 2.5 atm (approx)

Therefore, the final pressure is 2.5 atm

7 0
3 years ago
A fusion reaction takes place between carbon and another element. Neutrons are released, and a different element is formed. The
sdas [7]

Answer:

Dependent on the element that reacted with carbon

Explanation:

Nuclear fusion is the combination of small atomic nuclei into larger ones usually accompanied with the release of a large amount of energy.

From the problem stated, carbon fuses with another atom. The combined atom would have more nuclear particles in terms of protons and neutrons than the combining atoms. This will eventually make it weigh more than carbon and the atom it combines with. The resulting weight will depend on the combining atoms eventually.

7 0
3 years ago
Read 2 more answers
Which equation is an example of a redox reaction?
VikaD [51]
I think is D,,,,,,,,,,
8 0
3 years ago
Read 2 more answers
.
a_sh-v [17]
The writers of the Articles of Confederation wanted to preserve the states' sovereignty.
7 0
3 years ago
Other questions:
  • What conditions are needed for heat to flow
    15·1 answer
  • In what significant way does the modern model of the atom differ from bohr's model
    5·1 answer
  • Amber is a precious material used in jewelry. It forms when the resin of pine trees hardens into stone. Is amber a mineral
    15·1 answer
  • Identify the type of scientific knowledge represented by each statement. law theory hypothesis If a certain piece of metal is co
    15·2 answers
  • Which type or types of waves are mechanical? A. Longitudinal B. Transverse C.Electromagnetic D.Both Longitudinal and Transverse
    5·1 answer
  • I need help quickly so hurry please
    11·1 answer
  • Which equation shows the correct relationship between mass, force, and acceleration?
    7·1 answer
  • Which phrase best describes nuclear fusion? ( 1 point)
    8·1 answer
  • An object at a distance of 30 cm from a concave mirror gets its image at the same point. The focal length of the mirror is​
    6·1 answer
  • Which two reactants make Calcium carbonate?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!