Strong electrolytes are completely ionised in solution.
Weak ones are only partially ionised.
Non electrolytes do not form ions
Answer:
The correct answer is 'a base is a proton acceptor .'
Explanation:
According to the Bronsted-Lowry conjugate acid-base theory:
- An acid is defined as a substance which looses or donates protons and forms conjugate base.
Acid → 
+ Conjugate base
- A base is defined as a substance which accepts protons and forms conjugate acid.
Base + → Conjugate acid
According to the question the correct answer is 'a base is a proton acceptor.
The momentum of the body is 12 m/s.
<h3>What is momentum?</h3>
Momentum is the product of the mass of a body and velocity. According to Newton's second law, the rate of change of momentum is equal to the impressed force.
The details required to answer the first two questions are missing hence we can't answer those questions. For the last question;
p = mv
m = mass
v = velocity
p = momentum
v = p/m
v = 72,000 kgm/s/6,000 kg
v = 12 m/s
Learn more about momentum: brainly.com/question/904448
Answer:
V = 122.2 L
Explanation:
Given data:
Number of molecules of water = 6.58×10²⁴
Volume of oxygen produced = ?
Solution:
Chemical equation:
2H₂O → 2H₂ + O₂
<em>Number of moles of water:</em>
Number of moles = 6.58×10²⁴/ 6.022 ×10²³
Number of moles = 1.09 ×10¹ mol
Number of moles = 10.9 mol
Now we will compare the moles of water with oxygen:
H₂O : O₂
2 : 1
10.9 : 1/2×10.9 = 5.45 mol
Volume of oxygen:
PV = nRT
V = nRT/P
V = 5.45 mol × 0.0821 L. atm. K⁻¹. mol⁻¹× 273 k / 1 atm
V = 122.2 L. atm. / 1 atm
V = 122.2 L
Answer:
Representative Elements
Explanation:
Representative elements are chemical elements of the long groups of the periodic table identified by the letter A, headed by the elements hydrogen, beryllium, boron, carbon, nitrogen, oxygen, fluorine and helium, as they appear in the periodic table of the elements. .
They are characterized by presenting "external" electronic configurations in their fundamental state ranging from ns1 to ns2np6, unlike the transition elements and internal transition elements.
The representative elements are the elements of groups 1 and 2 (block s), and of groups 13 to 18 (block p) .2 Until a few years ago, these groups were identified with Roman numerals from I to VII with the letter A.3 The elements of group 12 are generally considered as transition metals, however, zinc (Zn), cadmium (Cd), and mercury (Hg) share some properties of both groups, and some scientists believe they should be included as representative elements or elements of the main groups.
Representative elements (with some of the lighter transition metals) are the most abundant elements on earth, in the solar system, and in the universe.
The representative elements are divided into eight groups and are characterized in that their electronic distribution ends in s-p or p-s. The group number results from adding the electrons in the sub-levels s or s and p of the last level.
