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
Kisachek [45]
3 years ago
14

How many substances/elements are on the periodic table?​

Physics
1 answer:
Morgarella [4.7K]3 years ago
7 0

Answer:

There are 118 substances/elements on the periodic table.

Explanation:

You might be interested in
NEED HELP ASAP PLEASE!
katrin [286]

Answer:

Here is the solution hope it helps:)

5 0
2 years ago
How does an increase in temperature affect the volume of a liquid or gas
Ludmilka [50]
When the temperature increases the volume will increase, and when it cools it will decrease. This is because the molecules spread further apart as the temp gets higher, which creates a bigger volume.
4 0
3 years ago
Read 2 more answers
The thermal energy in a heat engine is used to move a piston. Which best describes why this is possible?
Natali [406]

Answer:

The increase in thermal energy results in an increase in pressure.

Explanation:

  • The increase in entropy is directly related to the increase in temperature. So the thermal energy in heat engine increases the temperature of that surrounding.
  • Higher temperature means the kinetic energy of particles is also higher, their vibration is increasing. So it increases the pressure (ideal gas law).
  • In this way the increment in the thermal energy in heat engine moves piston by increasing the pressure.
6 0
3 years ago
Read 2 more answers
One molecule of bromine (Br2) and two molecules of potassium chloride (KCI) combine in a reaction. How many atoms are in the pro
Liula [17]

In the reaction between 1 molecule of bromine and 2 molecules of potassium chloride, there are six atoms in the products.

Let's consider the balanced equation for the reaction between 1 molecule of bromine and 2 molecules of potassium chloride. This is a single replacement reaction.

Br₂ + 2 KCl ⇒ 2 KBr + Cl₂

We obtain as products, 2 molecules of potassium bromide and 1 molecule of chlorine.

  • 1 molecule of KBr has 2 atoms, so 2 molecules contribute with 4 atoms.
  • 1 molecule of Cl₂ has 2 atoms.
  • The 4 atoms from KBr and the 2 atoms from Cl₂ make a total of 6 atoms.

In the reaction between 1 molecule of bromine and 2 molecules of potassium chloride, there are six atoms in the products.

Learn more: brainly.com/question/21850455

5 0
3 years ago
Read 2 more answers
In which scenario does radiation occur? warming soup on a stove drying towels at the beach cooking eggs in boiling water warming
shepuryov [24]

Answer: drying towels at the beach.

Explanation:

Radiation simply has to do with the energy that is gotten from a particular source and then goes through some materials. It simply means the way energy is being transmitted as waves or heat through a certain medium.

From the options given, the scenario whereby a radiation takes place is when drying towels on the beach.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Rank them from fastest to slowest in how quickly each warms up: (a) steel, 450 j/kgââc ; (b) aluminum, 910 j/kgââc ; (c) copper,
    11·1 answer
  • The half-life of iodine-131 is 8 days. Chan Hee examines two samples of iodine-131. Sample 1: 10 g Sample 2: 20 g What can Chan
    10·1 answer
  • A student uses an indicator to measure the pH of a solution. The indicator shows a pH of 7. What must be true of this solution?
    13·2 answers
  • What is the electric field at the center of the metal ball due only to the charges on the surface of the metal ball? (Express yo
    14·1 answer
  • The strong nuclear force is
    5·1 answer
  • The total amount of potential and kinetic energy in an object is called mechanical energy. True or False​
    11·1 answer
  • A small compact car collides with a sticks to a very large SUV. Which statement about the momentum involved in the collision is
    8·1 answer
  • HELP PLEASE I NEED AN A FOR THIS TO PASS
    9·1 answer
  • Tyler is driving home from school and finds that there is road construction being done on his favorite route so he has to take a
    15·1 answer
  • A long uniform board weighs 52.8 N (10.6 lbs) rests on a support at its mid point. Two children weighing 206.0 N (41.2 lbs) and
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!