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
OLEGan [10]
3 years ago
8

How many Elements are in the periodic table? (Trivia, I know this though)

Chemistry
2 answers:
lisov135 [29]3 years ago
5 0
118? But there are some spots for elements that haven't been discover. right? <span />
ElenaW [278]3 years ago
5 0
There are 118 elements in the periodic table.

Gr8 Day M8
You might be interested in
WHICH SIGN CAN SAY THAT A PHYSICAL CHANGE HAS TAKEN PLACE
Pie

Answer:

4. all of the above

Explanation:

that my answer hehehe..

7 0
3 years ago
NH₄NO₃ → N₂O + 2H₂O When 45.70 g of NH₄NO₃ decomposes, what mass of each product is formed?
Anna007 [38]

Answer: 25.13 g of N_2O  and 20.56 g of H_2O will be produced from 45.70 g of NH_4NO_3

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}    

\text{Moles of} NH_4NO_3=\frac{45.70g}{80.04g/mol}=0.571moles

The balanced chemical equation is:

NH_4NO_3\rightarrow N_2O+2H_2O  

According to stoichiometry :

1 mole of NH_4NO_3 produce = 1 mole of N_2O

Thus 0.571 moles of NH_4NO_3 will require=\frac{1}{1}\times 0.571=0.571moles  of N_2O  

Mass of N_2O=moles\times {\text {Molar mass}}=0.571moles\times 44.01g/mol=25.13g

1 mole of NH_4NO_3 produce = 2 moles of H_2O

Thus 0.571 moles of NH_4NO_3 will require=\frac{2}{1}\times 0.571=1.142moles  of H_2O  

Mass of H_2O=moles\times {\text {Molar mass}}=1.142moles\times 18g/mol=20.56g

Thus 25.13 g of N_2O  and 20.56 g of H_2O will be produced from 45.70 g of NH_4NO_3

5 0
3 years ago
In the atmosphere water vapor condenses to form clouds.
levacccp [35]
False , they form water or ice crystals 

4 0
3 years ago
Read 2 more answers
The hydrogen ion concentration of a vinegar solution is 0.00010 m. how is this concentration written in scientific notation?
9966 [12]
We are given with a vinegar with a hydrogen ion concentration of 0.00010 m. We are asked to express this concentration in scientific notation. The answer when expressed in scientific notation is 1x10^-4 m or molality. Answer is <span>1x10^-4 m. </span>
3 0
4 years ago
Read 2 more answers
In the following chemical reaction, which element is shown to be violating the law of conservation of mass? C3H8 + 4O2 -&gt; 3CO
AlexFokin [52]
Checking if it is balanced:

C             
3               3

H
8                  4*2 = 8

O
8                  3*2   + 4 = 6 + 4 = 10
8                   10

Only O is not balanced.

So O is violating the law.     Option C.

<span>C. O</span>
6 0
3 years ago
Other questions:
  • A six carbon carbohydrate would have how many hydrogen atoms?
    7·1 answer
  • When copper and nitrogen combine in an ionic bond, the name of the formula unit is copper nitride. T or F?
    8·1 answer
  • The sequence –ACCUUUCCCCGAAACGAC– provides the code for _____.
    10·1 answer
  • When you burn wood and they camp fire, _______ Energy is converted to ________ and light energy
    9·2 answers
  • Which is NOT a structure in the respiratory system?
    7·2 answers
  • Rutherford bombarded gold foil with alpha (a) particles and found that a small percentage of the particles were deflected. Which
    6·1 answer
  • 125 grams of solid sodium hydroxide is combined with an excess of aqueous hydrochloric acid. The heat of neutralization for the
    15·1 answer
  • Describe all the changes a sample of solid water would undergo when heated from -10degrees c to its critical temperature at a pr
    10·1 answer
  • NEED THIS ASAP ILL MARK BRAINLIEST Nutrition is a common topic in the media, whether it’s a new diet plan or a new “superfood” o
    15·1 answer
  • What is the volume of<br> NH4 NO3(s) — N2O(g) + 2H2O(g)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!