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
yKpoI14uk [10]
3 years ago
6

What do you think is the most important element and why? Include information

Chemistry
1 answer:
Snowcat [4.5K]3 years ago
5 0

Answer:

Hydrogen

Explanation:

It is considered a special element due to its flexibility in giving up & taking in electrons, therefore making it good for organic & inorganic chemistry. Hydrogen has only one proton and one electron and is the only element which has no neutrons. it is considered as the simplest element in the universe and gives a valid reason for it to be the most abundant and common element in the universe.

Hoped this helped! If this doesn't fit your 80 word count, you could shorten it.

You might be interested in
Please help me with this! I'd appreciate it. Thanks so much! :D
Setler [38]

Answer:

It is the second  option.

Explanation:

The conversion factor is:

I kPa = 7.50062 Torr.

3 0
3 years ago
Which statement best describes electrons?(1) They are positive subatomic particles and are found in the nucleus.(2) They are pos
Anton [14]
The answer should be (4) they are negative subatomic particles and are found surrounding the nucleus. The nucleus is formed by neutrons and protons. Neutrons are neutral and protons are positive.
6 0
2 years ago
1. A 50 gram sample of a radioisotope decays to 12.5 grams in 14.4 seconds. What is
stiv31 [10]

Answer:

Half life = 7.2 seconds

Explanation:

from \: decay \: equation \\ 2.303 log( \frac{n.}{nt} )  = kt \\ 2.303 log( \frac{50}{12.5} )  = k \times 14.4 \\ k =  \frac{2.303 log( \frac{50}{12.5} )}{14.4}  \\ k = 0.096288 {s}^{ - 1}  \\ since \: half \: life =  \frac{ ln(2) }{k}  \\ half \: life  =   \frac{ ln(2) }{0.096288}  \\ half \: life = 7.2 \: seconds

5 0
2 years ago
Read 2 more answers
Help pleasee I need help to write the formulas i’m so lost
pishuonlain [190]

Answer:

NH4

Explanation:

3 0
2 years ago
The rate constant for this second‑order reaction is 0.190 M − 1 ⋅ s − 1 0.190 M−1⋅s−1 at 300 ∘ C. 300 ∘C. A ⟶ products A⟶product
Mamont248 [21]

Answer:

9.1 seconds

Explanation:

Given that for a second order reaction

1/[A]t = kt + 1/[A]o

Where [A]t= concentration at time = t= 0.340M

[A]o= initial concentration = 0.820M

k= rate constant for the reaction=0.190m-1s-1

t= time taken for the reaction (the unknown)

Hence;

(0.340)^-1 = 0.190×t + (0.820)^-1

t= (0.340)^-1 - (0.820)^-1/0.190

t= 9.1 seconds

Hence the time taken for the concentration to decrease from 0.840M to 0.340M is 9.1 seconds.

5 0
2 years ago
Other questions:
  • This is a characteristic of the elements in the periodic table that shows a pattern. It may increase or decrease across or down
    10·2 answers
  • The purpose of a coal burning power plant is to produce which end product?
    5·1 answer
  • If 27.1 g of ar(g) occupies a volume of 4.21 l, what volume will 1.29 moles of ne(g) occupy at the same temperature and pressure
    10·2 answers
  • How many moles are in 337 grams of tellurium?
    15·1 answer
  • Please help thankyou
    15·1 answer
  • what should you do if you want to decrease the rate of a chemical reaction between a solid and a liquid​
    11·1 answer
  • is it possible to gain or lose mass or energy after a chemical reaction has occurred in a closed system?
    15·1 answer
  • To explain the photoelectric effect, Albert Einstein linked the photoelectric effect to an idea from which scientist?
    12·2 answers
  • Name an element that has the same number of electron energy levels as Calcium (Ca)?
    9·1 answer
  • 2. How many molecules are contained in 25 L of N₂ at S. T.P.?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!