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
galben [10]
2 years ago
12

Please answer as quick as possible

Chemistry
2 answers:
OverLord2011 [107]2 years ago
4 0

Answer:

A - potassium........ M

pantera1 [17]2 years ago
4 0

Answer:

POTASSIUM

Explanation:

You might be interested in
A compound, like water, can be broken down (decomposed) by:
Sever21 [200]

Answer:

electrolysis is the correct answer.

Explanation:

Water is decomposed into hydrogen and oxygen gases using electricity. A Hoffman electrolysis apparatus collects the two gases separately and shows the 2 to 1 ratio nicely. ... Hoffman electrolysis apparatus. 2 electrodes - one is nichrome wire and the other is platinum wire and foil.

Go look up Hoffman apparatus.

7 0
3 years ago
Read 2 more answers
What is the answer, with the correct number of decimal places, for this problem? 4.392 g+ 102.40 g + 2.51 g=
blondinia [14]
The correct answer is C
4 0
3 years ago
A gas of unknown molar mass was allowed to effuse through a small opening under constant pressure conditions. It required 986 s
Kobotan [32]

Answer:

The molar mass of the unknown gas is 154.4 g/mol

Explanation:

Step 1: Data given

It takes 986 seconds for an unknown gas to effuse

It takes 811 seconds for chlorotrifluoromethane (CClF3) gas to effuse

Molar mass of chlorotrifluoromethane (CClF3) = 104.46 g/mol

Step 2: Calculate the molar mass of the gas

t1/t2/ √(M1/M2)

⇒with t1 = the time needed for the unknown gas to effuse = 986 seconds

⇒with t2 = the time needed for CClF3 to effuse = 811 seconds

⇒with M1 = the molar mass of the unknown gas = TO BE DETERMINED

⇒with M2 = the molar mass of CClF3 = 104.46 g/mol

986/811 = √(M1/104.46)

(986/811)² = M1 / 104.46

M1 = 154.4 g/mol

The molar mass of the unknown gas is 154.4 g/mol

6 0
3 years ago
Neon is an inert gas and has the atomic number of 10. Which of the following correctly depicts its electron configuration? 1s22d
weeeeeb [17]
I think the answer is 1s²2s²2p⁶.  Since neon has an atomic number of 10, we know that it needs to have 10 electrons and since it is in the second row it cannot have any d electrons which makes the first option incorrect.  The second option is incorrect because the 2s⁴ can't exist since s orbitals can only hold 2 electrons.  The fourth option cannot be right because it again neon cannot have d electrons due to it being in the second row.

I hope this helps.  Let me know if anything is unclear.
7 0
3 years ago
Which of the following is not an indicator of a chemical reaction?
Cloud [144]

Answer:

Hello There!!

Explanation:

C. a color change

Colour is not an indicator. Sorry if I'm wrong.

hope this helps,have a great day!!

~Pinky~

3 0
3 years ago
Other questions:
  • What number would you write before water in the formula for calcium carbonate nonahydrate? 4 5 7 9
    5·1 answer
  • The reactants of two chemical reactions are shown.
    8·2 answers
  • What is the correct formula for the
    7·2 answers
  • PLEASE HELP!!!<br><br><br> Dhdjdhdjwjwnwisidjdnswnsjsjsksk
    14·1 answer
  • Carbon containing compounds are referred to as:
    8·1 answer
  • PLS HELP THIS IS SCIENCE !!<br><br> IGNORE THE QUESTIONS I ACCIDENTLY PRESSED ON
    14·2 answers
  • Give a brief background of the development of nuclear power.
    6·1 answer
  • What are the products of the single replacement reaction between Zn+2 metal and NaCl
    15·1 answer
  • Plz help me write on ur own words and ignore where it says pictures
    10·1 answer
  • C₃H₈ (g) + 5O₂ (g) --&gt; 3CO₂ (g) + 4H₂O (l) would be best classified as which type of reaction?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!