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
Nadya [2.5K]
3 years ago
11

Chemical properties of potassium

Chemistry
1 answer:
tester [92]3 years ago
6 0
<span><span>Atomic number19 
</span><span>Atomic mass<span>39.0983g.mol -1
</span></span><span>Electronegativity according to Pauling0.8
</span><span>Density<span>0.86
 g.cm -3 at 0 °C
</span></span><span>Melting point <span>63.2 °C</span></span></span>
You might be interested in
A certain liquid X has a normal boiling point of 111.20 celsius and a boiling point elevation constant Kb=0.95. calculate the bo
Goshia [24]

Answer: the boiling point is = 137.325°C

Explanation:

From the formula: ∆Tb= Kb*m

From the question, Kb= 0.95, m= 27.5, T1= 111.2°C

Substitute into ∆Tb= Kb*m

∆Tb= 0.95*27.5= 26.125

∆Tb= T2-T1

Hence

T2- 111.2=26.125

T2= 26.125+ 111.2= 137.325°C

8 0
3 years ago
A chemical reaction that has the general formula of nA ➡ (A)n is best classified as a ___________ reaction
tekilochka [14]
The answer to this question is sodium
8 0
3 years ago
Read 2 more answers
CH=C-CH=CH– CH = CH, what is the name of this molecule?​
Kobotan [32]

Answer:

pent-3-ene-1-yne

Explanation:

1 2 3 4 5

CH ≡ C - CH = CH - CH3

IUPAC name : Pent-3-ene-1-yne

3 0
3 years ago
1. A cold front forms when-
Aleks [24]
A cold air mass moves into an area of warm air
4 0
3 years ago
What is a neutralisation reaction? Give two examples.
ozzi

Explanation:

A neutralization is a type of double replacement reaction. a salt is the product of an acid-base reaction and is a much broader term then common table salt.

Example:-

(i) HCl + NaOH ---> NaCl + HOH

(ii) H2SO4 + 2NH4OH ---> (NH4)2SO4 + 2HOH.

7 0
3 years ago
Other questions:
  • How many resonance structures are there for [S2CO]2- ?
    12·1 answer
  • What is the mass of a wooden block with a density 2.0 and a volume of 7.0? (Need answer ASAP!!)
    6·2 answers
  • What is the relationship between humidity and air pressure
    13·2 answers
  • What is the name for the point at which the indicator changes color in a titration? turning point end point indicator point colo
    10·2 answers
  • What does heat do to an elecron
    14·2 answers
  • Calculate the density of a material that has a mass of 50.5g and a volume of 14.5cm3.
    14·1 answer
  • What is the role of nitric acid during silver nitrate test for halide?​
    10·1 answer
  • Find the percentage compositions<br> CaCl2<br> Ca:<br> CI:
    7·1 answer
  • Would be grateful if someone could show the process for solving this problem.
    12·1 answer
  • When barium becomes positively charged, it forms a(n): (2 points)
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!