Answer:
pi
Explanation:
In chemistry, a covalent bond is formed by the overlap of atomic orbitals. The bond formed may be a sigma bond or a pi bond depending on the way the atomic orbitals are overlapped.
If the overlap occurs in a side-to-side manner, the bond formed is said to be a pi bond. Pi bonds are common in organic species having multiple bonds such as ethene and benzene.
Answer: 2 kg.
Explanation: Kinetic Energy is expressed as the product of mass and squared of velocity over two KE=1/2 mv² . Derive the following expression for mass. m=2KE/v² then substitute the values 2(225J)/ (15 m/s)² =2kg
Water that contains large amounts of disolved salts
<span>Among the given choices, the third option is the only one which illustrates single replacement.
(3)H2SO4 + Mg --> H2 + MgSO4
A single replacement is also termed as single-displacement reaction, a reaction by which an element in a compound, displaces another element.
It can be illustrated this way:
X + Y-Z → X-Z + Y</span>
Answer:
Demonstrate familiarity with the pH scale ... body (excluding things like stomach acid) measure around 7.2 and 7.6 on the pH scale (a 7 is neutral on the scale). ... The pH of a solution is a measure of its acidity or alkalinity (base). ... Using a pH meter, you find the pH of an unknown solution to be 8.0.
Explanation: