1answer.
Меню
Ask question
Login
Signup
Ask question
Menu
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
melomori
[17]
2 years ago
13
How many elements are in the periodic table?
Chemistry
Answer
Comment
Send
1
answer:
exis
[7]
2 years ago
7
0
Answer: 118
Explanation:
Send
You might be interested in
4 NH3 + 6 NO → 5 N2 + 6 H2O How many moles of NH3 are necessary to produce 0.824 mol N2?
GrogVix [38]
4 mol NH₃ → 5 mol N₂
x mol NH₃ → 0.824 mol N₂
x=0.824*4/5=
0.6592 mol
6
0
3 years ago
What do nonmetals and metals seek to do when having full outermost shells?
IceJOKER [234]
Answer: C
Explanation:
5
0
2 years ago
A gas occupies 12.3 litres at pressure of 40 cm of Hg. What is the volume in ml when the pressure is increased to 600 mm of Hg a
aalyn [17]
Answer:
Good Luck!
Explanation:
4
0
2 years ago
How many moles are in 25.0 grams of KMnO4?
ElenaW [278]
The answer is: 0.158 mol
You find this by doing:
number of moles (n) = mass (m) / molar mass (M)
n=158.034/25.0
6
0
2 years ago
When the temperature begins to drop in their own ecosystem.What do birds tend to do?
cestrela7 [59]
Answer: migrate south
Explanation:
7
0
2 years ago
Other questions:
why would a can of soda fizz much more when opened on top of Mt. Everest than when opened at sea level?
5
·
1 answer
Which of the following shows both the correct formula and correct name of an acid?
13
·
2 answers
Which of the following is the simplest ketone used as an organic solvent?
11
·
1 answer
Sewage and industrial pollutants dumped into a body of water can reduce the dissolved oxygen concentration and adversely affect
15
·
1 answer
Solve by a 1 variable equation -3(x-3)=x+9-4x
10
·
1 answer
All of the following metals replace hydrogen of an acid except.........
6
·
1 answer
There are 24 g of carbon in a substance with a mass of 30 g. What is the percent carbon by mass for this substance?
10
·
1 answer
How do potential energy diagrams represent energy transfer in<br> chemical reactions?
5
·
1 answer
If a ball rolling down a hill is half way between the top and bottom, how much potential energy does the ball have compared to k
14
·
1 answer
How many Joules are present in 7401 kJ?
5
·
1 answer
×
Add answer
Send
×
Login
E-mail
Password
Remember me
Login
Not registered?
Fast signup
×
Signup
Your nickname
E-mail
Password
Signup
close
Login
Signup
Ask question!