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
lara31 [8.8K]
3 years ago
10

Who discovered the electron and what instrument did he use?

Chemistry
1 answer:
Leni [432]3 years ago
8 0

Answer:J.J. Thomson, he was using a high-vacuum cathode-ray tube

Explanation:(I Googled it)

You might be interested in
The sum of pH and pOH for any aqueous solution equals .
Vsevolod [243]

Answer:

pH is calculated by taking negative logarithm of hydrogen ion concentration. Acids have pH ranging from 1 to 6.9, bases have pH ranging from 7.1 to 14 and neutral solutions have pH equal to 7. Thus the sum of pH and pOH is 14

Explanation:

6 0
3 years ago
How much heat is released as the temperature of 25.2 grams of iron is decreased from 72.1°C to 9.8°C? The specific heat of iron
prisoha [69]

Answer:

Q=-697.06\ J

Negative sign says that release of heat.

Explanation:

The expression for the calculation of the heat released or absorbed of a process is shown below as:-

Q=m\times C\times \Delta T

Where,  

\Delta H  is the heat released or absorbed

m is the mass

C is the specific heat capacity

\Delta T  is the temperature change

Thus, given that:-

Mass = 25.2 g

Specific heat = 0.444 J/g°C

\Delta T=9.8-72.1\ ^0C=-62.3\ ^0C

So,  

Q=25.2\times 0.444\times -62.3\ J=-697.06\ J

Negative sign says that release of heat.

8 0
3 years ago
What relationship exists between an enzyme and a catalyst?
shepuryov [24]

A catalyst is a chemical that increases the rate of a chemical reaction without itself being changed by the reaction. The fact that they aren't changed by participating in a reaction distinguishes catalysts from substrates, which are the reactants on which catalysts work. Enzymes catalyze biochemical reactions.

5 0
2 years ago
Read 2 more answers
What is the end result of a nuclear fusion reaction?
julia-pushkina [17]

Answer:A.) molecule of atoms forms

Explanation:

7 0
3 years ago
Read 2 more answers
What is programming language? Describe it's types.<br>​
umka21 [38]
A programming language is a vocabulary and set of grammatical rules for instructing a computer device to perform specific tasks. the term programming language usually refers to high level languages, such as BASIC, C, C++, COBOL, Java, FORTRAN, Ada, and Pascal! i hope i was able to help :)
7 0
3 years ago
Other questions:
  • Explain why raising the temperature of a liquid would speed up diffusion
    12·1 answer
  • _______ are organic compounds containing a C=O bond, having strong aromas, and known for being volatile. A. Carboxylic acids B.
    10·2 answers
  • 200mL of 4.98M of sodium chloride solution is added to an additional 532 ml of water what is the final molarity?
    7·1 answer
  • What is the temperature of o3 gas if the average speed(actually the root mean square speed of the molecules is 750 m/s
    13·1 answer
  • Which of the following are not phases of matter?
    10·2 answers
  • Liquids are similar to gases in that they both have
    9·1 answer
  • Why do strong bonds exist between water molecules?
    5·1 answer
  • If atoms contain charged particles, why do they not have a charge?
    10·1 answer
  • Students were asked to determine if the two slides are taken from plants or cells taken from animals
    11·1 answer
  • What is the percentage by volume of 30.0 mL ethanol (C2H6O) dissolved in 150.0 mL water (H2O)?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!