Answer:
Diatomic molecules are molecules composed of only two atoms, of the same or different chemical elements. The prefix di- is of Greek origin, meaning "two". If a diatomic molecule consists of two atoms of the same element, such as hydrogen (H2) or oxygen (O2), then it is said to be homonuclear.
Explanation:
I did it before
Answer is D. that is all of the above.
Elements are chemically joined to form compounds and every compound have unique property that helps to identify it. Compounds have different kind of properties that are unique for a particular compound that is boiling point, vapour pressure and density that provides it a unique characteristics. So the answer here will be D. that is all of the above.
<span>A heterotroph can't make it's own food, because</span> heterotrophs<span> have to consume/eat other living things to get </span>their energy, as they are also called consumers.
Answer:
A
Explanation:
Mass is a raw measurement, weight is effected by gravity
Answer:
The relationship is expressed as follows: ![K_{a} = \frac{[H+][A-]}{[HA]}](https://tex.z-dn.net/?f=K_%7Ba%7D%20%3D%20%5Cfrac%7B%5BH%2B%5D%5BA-%5D%7D%7B%5BHA%5D%7D)
Explanation:
Most acidic substances are weak acids and are therefore only partially ionized in acqeous solution. We cab use the equilibrium constant for the ionization of acid to express the extent to which the weak acid ionizes. If we represent a general weak acid as HA, we can write the equation for its ionization reaction like this:
To calculate the pH of a weak acid, we use the equilibrium concentration of the reacted species and product.
Take for example:
HA → H + A⁻
where A id the conjugate base.
Knowing that x amount of acid reacts, we can solve like this:
HA → H + A⁻
H+ = antilog (pH)
thus, the pH of the acid is equals to H+ (initial) - H+ (equilibrium) ≈ H+ (initial)
