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
Tresset [83]
3 years ago
9

What are elements and how many elements discovered

Chemistry
2 answers:
Yuliya22 [10]3 years ago
7 0

Explanation:

At present, 118 elements are known to us. All these have different properties. Out of these 118, only 94 are naturally occurring. As different elements were being discovered, scientists gathered more and more information about the properties of these elements.

Monica [59]3 years ago
3 0
it’s 118 but someone already wrote it haha







You might be interested in
does the mean molecular speed chnage as much as the temperature as the water heats up? explain please help
Vikki [24]

Explanation:

When water is heated up then its molecules move rapidly from one place to another. Hence, kinetic energy of the molecules tend to increase.

Also,   K.E = \frac{3}{2}kT

where, T = temperature

Therefore, more is the increase in temperature more will be the mean molecular speed change in the water molecules.

As a result, mean molecular speed change increases with increase in temperature and vice-versa.

6 0
3 years ago
WILL GIVE BRAINLIEST!!!
Airida [17]

I can tell you for sure that resistant crop strains is not the correct answer. I believe it would be hydrocarbon substitution. Gene therapy has to do with the study of genetics, which is an example of biotechnology, and animal cloning involves genetics as well.

8 0
4 years ago
Hydrogen and oxygen react to produce water. Which of the following is the correctly balanced chemical equation for this reaction
andrezito [222]

Answer:

2H₂ + O₂  ===>  2H₂O

Explanation:

4 0
2 years ago
Which of the following is NOT one of the four pieces of evidence Wegener
Arturiano [62]
I think it may be “past climate of Earth seen in glaciers”/ I learned about this and that one doesn’t really ring a bell, plus it doesn’t make sense to me. I four sure know it’s not the fitting like a puzzle one. Sorry if I get this wrong.
4 0
3 years ago
HELP ASAP PLS AHHH ty
Flauer [41]

Answer: a for the first one , d for the second  one, b for the third one.

Explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • What does relative abundance tell you?
    12·1 answer
  • What is the concentration of ALL ions in a 0.20 M solution of Na3PO4
    13·1 answer
  • While using ice in a lab, Major Burns puts a piece of ice down Captain Pierce's shirt. To get even, Pierce grabs a handful and r
    5·1 answer
  • What is the pressure of 2 moles of gas at 300k with a volume of 4.0l
    8·2 answers
  • How many grams of Cl2 will be produced along with 250.0 kJ of heat in the following reaction? PCl5(g) + 87.9 kJ PCl3(g) + Cl2(g)
    6·2 answers
  • Which element is a semiconductor
    15·2 answers
  • Nitrogen dioxide undergoes thermal decomposition according to the second-order reaction 2 NO2(g) → 2 NO(g) + O2(g). When 0.700 M
    5·1 answer
  • This force occurs when there is an attractive and repulsive force between two poles.
    8·1 answer
  • Covert 81 .2ml to L<br> I’ll mark you as brainlister
    8·1 answer
  • How cold does it have to be for boiling water to freeze instantly
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!