0.33 seconds is the period of a wave with a frequency of 3 Hz and an amplitude off 0.01 .
<u>Explanation:</u>
We have , period of a wave with a frequency of 3 Hz and an amplitude off 0.01 . We know that period of a wave is amount of time needed to complete one oscillation . In order to calculate period of wave we use frequency and the formula use is 
. We are given that frequency = 3 Hz:
⇒
⇒ 
⇒ 
Therefore, 0.33 seconds is the period of a wave with a frequency of 3 Hz and an amplitude off 0.01 .
Sentence II is not a correctly formatted hypothesis because it is factually inaccurate because plants need light source to grow as they provide food for them by photosynthesis.
<h3>What is photosynthesis?</h3>
The photosynthesis is a process into which plants make their food by absorbing carbon dioxide and releasing oxygen in the environment.
Plants absorb light from sun rays and converts the light source to energy and produce glucose this process or reaction is known as photosynthesis.
Therefore, sentence II is not a correctly formatted hypothesis because it is factually inaccurate because plants need light source to grow as they provide food for them by photosynthesis.
Learn more about photosynthesis, here:
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<h2>Question:- </h2>
A solution has a pH of 5.4, the determination of [H+].
<h2>Given :- </h2>
- pH:- 5.4
- pH = - log[H+]
<h2>To find :- concentration of H+</h2>
<h2>Answer:- Antilog(-5.4) or 4× 10-⁶</h2>
<h2>Explanation:- </h2><h3>Formula:- pH = -log H+ </h3>
Take negative to other side
-pH = log H+
multiple Antilog on both side
(Antilog and log cancel each other )
Antilog (-pH) = [ H+ ]
New Formula :- Antilog (-pH) = [+H]
Now put the values of pH in new formula
Antilog (-5.4) = [+H]
we can write -5.4 as (-6+0.6) just to solve Antilog
Antilog ( -6+0.6 ) = [+H]
Antilog (-6) × Antilog (0.6) = [+H]
put the value in equation
![{10}^{ - 6} \times 4 = [H+] \\ 4 \times {10}^{ - 6} = [H+]](https://tex.z-dn.net/?f=%20%7B10%7D%5E%7B%20-%206%7D%20%20%20%5Ctimes%204%20%3D%20%5BH%2B%5D%20%5C%5C%204%20%5Ctimes%20%20%20%7B10%7D%5E%7B%20-%206%7D%20%20%3D%20%5BH%2B%5D)
Answer:
it shows the data that fluctuates depending on the data
Explanation:
Answer: The TRUE statements about an ion includes:
a. Anions result when atoms gain an electron.
b. Cations have more protons than electrons.
Explanation:
The fundamental unit of matter is ATOM, which is the smallest particle of an element that can take part in a chemical reaction. The constituents of the atom are PROTON, NEUTRON and ELECTRONS.
The theory of the possible model of an atom and the position of each constituent within the atom was given by Lord Rutherford. The nucleus of an atom is made up of the protons and neutron while the electron revolves round it. IONS are formed when these atoms either gains or losses these electrons.
When an atom gains electrons to complete it's outermost shell, it acquires a negative charge. This is because the electrons are more than the protons. This type of atom is called an ANION
When an atom losses an electron, it in turn acquires a positive charge. This is because the proton are more than the electrons. This is called the CATION.
Therefore the true statement about ions is option a and b.
Option C is false because it is an electron that is either loss or gained to form an ion not Neurons. Option D is wrong because Na+ lost one electron to become positively charged.
