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
natima [27]
3 years ago
13

Why is Potassium not used in school laboratory

Chemistry
2 answers:
Colt1911 [192]3 years ago
8 0

Answer:

Explanation:

Potassium and cold water are not used to prepare hydrogen in laboratory because: 1. Potassium is highly reactive metal and it reacts violently with cold water. 2.

densk [106]3 years ago
6 0
<h3>Because it is harmful for school environment.</h3>

Potassium Metal Is Explosive— Do Not Use It! The reaction of sodium with water is a spectacular and essential classroom demonstration. Many teachers want to show also the more violent reaction of potassium. We propose not to do so because explosions can happen even before the metal is in contact with water.

<em>-</em><em> </em><em>BRAINLIEST</em><em> answerer</em>

You might be interested in
What is the molar mass of KOH?
Julli [10]
<h3>Answer:</h3>

56.11 g/mol

<h3>General Formulas and Concepts:</h3>

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Chemistry</u>

<u>Atomic Structure</u>

  • Reading a Periodic Table
<h3>Explanation:</h3>

<u>Step 1: Define</u>

[Compound] KOH

<u>Step 2: Identify</u>

[PT] Molar Mass of K - 39.10 g/mol

[PT] Molar Mass of O - 16.00 g/mol

[PT] Molar Mass of H - 1.01 g/mol

<u>Step 3: Find</u>

39.10 + 16.00 + 1.01 = 56.11 g/mol

5 0
3 years ago
A beaker has a mass of 77.275 calculate this mass in mg
Rainbow [258]
By definitions of the prefixes in the metric system, the prefix milli- (abbreviated as m as in mg) indicates 1/1000 or 1 x 10^-3 of a gram. In this case, if a beaker has a mass of 77.275 g (I am assuming this is grams since most other units would make it too heavy or too light), we would multiply this by 1000 to convert it to milligrams. So 77.275 g = 77,275 mg.
4 0
3 years ago
I need someone to help me with this. PLEASE, I'M BEGGING YOU
musickatia [10]

Answer:

D. 25%

Explanation:

8 0
3 years ago
Which of the following is not true concerning cover crops?
Rama09 [41]
The correct answer is: THEY ARE SOLD AS CASH CROPS.
8 0
3 years ago
Read 2 more answers
What feelings do you feel when you hear a song about rain?
dmitriy555 [2]

Answer:

sad..................

3 0
3 years ago
Read 2 more answers
Other questions:
  • Based on the enthalpy changes given for the reactions, which reactions are endothermic? (check all that apply)
    13·2 answers
  • When elements are more stable in a combined form, which of the following forms?
    9·2 answers
  • How many glucose molecules can be produced per second in a plant
    15·1 answer
  • Calculate the molarity of each solution. 28.33 g c6h12o6 in 1.28 l of solution
    9·2 answers
  • What type of reaction is
    10·1 answer
  • 4. At what phase of the cell cycle does the genetic material double?<br><br> BRIANLIST!
    11·2 answers
  • Which of the following statements is true about cellular respiration?
    6·2 answers
  • How many moles of SO2 are required to produce 0.45 mole CS2?
    6·2 answers
  • When explaining chemical reactions to a friend, Brianna models a reaction by taking several colors of modeling clay and making a
    7·2 answers
  • If a car travels 400 meters in 20 sec how fast is it going
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!