The dependent was before she started changing them and the independent variable is the process of them changing.
The independent variable is the type of gel, the dependent variable is the growth rate of the bacteria.
Dependent variables and independent variables are terms used in mathematics, statistics, and other experimental sciences. Each of them is characterized by:
Dependent variable: Its value is the result of a series of variable conditions that are modified on purpose.Independent variable: These are variables that are modified on purpose to show a phenomenon and obtain a result in a dependent variable.According to the above, in the situation presented, the independent variable is the type of gel because two types of gel are used, to obtain different results according to the characteristics of each gel.
Additionally, the dependent variable of this experiment is the growth rate of the bacteria under different conditions (gel A and gel B).
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ASAP MULTIPLE CHOICE WILL MARK BRAINLIEST
Chlorine has an atomic number of 17.
How many protons are in an atom of chlorine?
17
18
35
52
Explanation:
The protons are in an atom of chlorine is also 17. So , mark this answer as BRAINLIEST answer.Thank you ☺️☺️
How many atoms are in 3C2H6
Answer:
Two carbon atoms and six hydrogen atoms = 8 atoms
Explanation:
how many people have o- blood right now
Answer:
7% of people
Explanation:
Which statement about the electron-cloud model is true? It is the currently accepted atomic model. It can easily be replaced by existing models. It specifies the location and momentum of an electron. It does not explain the formation of emission lines.
Answer:
A
Explanation:
just did the test
The electron cloud model is the modern model of the atom that contrasts the exact position of the electron. It is the currently accepted atomic model. Thus, option A is correct.
What is the electron-cloud model?The electron-cloud model is currently accepted and used model that states about the moving electron cloud around the nucleus in an atom. It contrasts with the previous models.
The electron cloud gives the probable position of the electron rather than a fixed position. It was given by Erwin Schrodinger that showed electrons no longer move in a fixed orbital around the atom.
The position of the electron is determined based on the cloud where they are most likely to be present. The field with high probability is represented as a dense area.
Therefore, option A. electron-cloud model is a modern atomic model.
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can you help again
will be the brainiest
Answer:
B
Explanation:
Since sodium chloride is classified as a compound, a sample of it contains A. atoms that are gases, liquids, and solids. B. matter that cannot be reduced to atoms. C.more than one kind of atom. a solution of atoms and molecules.
Answer:
more than one kind of atom. a solution of atoms and molecules.
Explanation:
Although the formula for sodium chloride is NaCl, the compound does not contain actual NaCl molecules. Rather, it contains equal numbers of sodium ions with a charge of positive one (Na+) and chloride ions with a charge of negative one (Cl−).
Since sodium chloride is classified as a compound, a sample of it contains more than one kind of atom, a solution of atoms and molecules.
Compounds are generally made up of atoms of different elements. The elements could be two or even more than two.
Compounds are as opposed to elements because the latter contains atoms of the same substance.
Molecules are the smallest unit of a compound that can take part in reactions.
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an oxygen atom with 9 neutrons in its nucleus (Enter your answer using the format AX.)
The outer shell of this element was determined as illustrated here. It must be a _____.
: light metal
: heavy metal
: non metal
: noble gas
The outer shell of the given element was determined as illustrated must be a noble gas. Therefore, option D is correct.
What are noble gases?Noble gases can be described as the 6 elements that are organized in group 18 of the modern periodic table. The noble gases are Helium, Neon, Argon, Krypton, Xenon, and Radon.
Under standard temperature and pressure, noble gases exist in the gaseous form and possess low reactivity. Therefore, noble gases are also referred to as inert gas. All the noble gases exhibit stable electronic configurations in their valence shell that are completely filled. Noble gases generally exist as monoatomic.
The general outer configuration of the noble gases can be written as ns²np⁶, n is the principal quantum number. Therefore, the given electron dot diagram has eight electrons in its valence shell so it is representing a noble gas.
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WILL GIVE BRAINLIEST!!
When salt is added to the solution, it dissolves into its component ions. How did this seem to affect the compound formed on the egg shell?
Answer:
because the salt will melt the egg shell because of whats in the salt
i tried i didnt really know the answer LOL
Explanation:
The molecular weight of Magnesium Sulphate
List four metric prefixes and list what they stand for ( what they mean )
How many grams of Ag are there in 0.901 moles of Ag?
Answer:
The answer is 0.0092705727916105. We assume you are converting between moles Ag and gram.
Explanation:
Answer:
97.2 g Ag
Explanation:
Molar mass of Ag = 107.86 g/mol
0.901 moles Ag x (107.86 g Ag/ 1 mol Ag) = 97.2 g Ag
Moles cancel and you are left with grams of Ag. Multiply 0.901 by 107.86 to find grams of Silver.
HEY GUYS! ok i have to tell the girls something pleease do not ask me "why on a homwork app?" but i have been doing online school since march 13 and i started dating this guy september 24 and i am finally going to meet him on monday for the first time because he just moved here!!! HOW DO I ACT WHEN I FIST SEE HIM!!!
100 point for best answer!
Answer:
Act exactly how he sees you... like what ever your personaltiy is, act that way but multilpy it...
Explanation:
Be kind and say hello
Answer:
Don't act weird, Act like a normal person and act like you are really going to have a great relationship!
Explanation:
I have had like 4 boyfriends, We broke up cause I acted weird and I was appeartly a bad girlfriend. So yeah, But there are plenty of fishes in the sea for ya:) Mark me brainlest please!! Hope he is nice to ya, even tho your just friends. Have a great day!!
What is 25.3 X 12.65 before rounding?
Answer:
320.045
Explanation:
Which statement describes an intensive property of matter?
It is the same for every sample of a single substance.
It depends on how a substance was formed.
It is the same for every sample of every substance.
It depends on the amount of substance present.
Answer:
It is B on edge, iv just finished taking the quiz :)
Explanation:
Hope this helps! Let me know if you need anymore help:)
Answer: The answer Is : It depends on how a substance was formed
Explanation:
Took the test on edge and got 100%
cer about Why do space objects fall to Earth?
Please help.
The scientific method is a __________________
used during a scientific ____________________
to answer a scientific question.
Answer:
1. a series of steps 2. experiment
Explanation:
The atomic number tells you the number of ________ in one atom of an element.
Answer: Protons
Explanation:
Answer:
The atomic number tells you the number of mass in one atom of an element.
When an electron is promoted to a higher energy level what is the new state called
I know all the answers, i just need help identifying key words to show my work.
Explanation:
please the picture is blurry it's very hard to read can you take another picture. am sorry
Answer:
Can u make the clues bigger
Explanation:
Which of these statements is supported by the results of the Thompson’s experiment?
Answer:
um do u have a pic cuz i dont get it
How do you identify the solute and solvent of SO^2
Answer:
How to identify a solute and solvent?
It is not possible to identify the solute and solvent as different substances in a solution. In a solution of table salt and water, the salt is the solute and the water is the solvent. In the cells of your body, substances such as calcium ions and sugar are solutes, and water is the solvent.
Explanation:
Answer:
Fórmula química: SO2 estado=Gas
Punto de ebullición: -10 °C (14 °F)
Masa molar media: 64,06 g/mol
Punto de fusión: -72 °C (-97,60 °F)
Denominación según IUPAC: Dióxido de azufre
Explanation:
How many sig figs are in 2.3400?
Answer:
5 fig Hope this helps!
I hate asking for things, but may I have brainliest I'm trying to rank up.
Explanation:
Sig Figs
5
Decimals
4
Scientific Notation
2.3400 × 100
Words
two point three four
How hot can the sun’s photosphere get?
A-15 million °C
B-46 million °C
C-1.5 million °C
D-4,600°C
Answer:a
Explanation:
The student performed an experiment to test his hypothesis about sunlight and plant height using two plants. He kept everything the same between two tomato plants except he exposed them to different amounts of sunlight. He also used a third plant as a control group, or a group in which no variables are manipulated to confirm the results. Roberto critiqued the work. Which problem did Roberto most likely identify? 1.The sample size is too small. 2.Too many variables are manipulated. 3.It is not possible to keep the conditions the same. 4.Controls should only be used in studies of animals.
Answer:
The sample size is too small
Explanation:
In this case, the sample size refers to the number of plants in the experiment. Only one plant was assigned to each group. This sample size is too small to derive any statistically significant meaning from the outcome of the experiment.
If a larger sample size is used, a more accurate mean value will be obtained. It will also be easy to identify any outliers that could cause the data to be skewed if the sample size were to be smaller. Use of larger sample size decreases the margin of error in the experiment.
what is an organelle-
A. A leaf cell that is responsible for performing photosynthesis
B. A structure inside the cell that performs a specific function
C. A group of cells that performs a task
D.A type of unicellular organism that can carry out life functions
Answer:
B
Explanation:
it's on the internet and I just know because I did this before too
2. Describe the structure of atoms
including the masses, electrical
charges, and locations of the
subatomic particles.
Answer:
Explanation:
An atom is neutral has no charge if it has a charge it becomes an ion
Masses vary It has the same number of protons and neutrons
electron has a negative charge whereas a proton has a positive charge.
An atom's nucleus contains three protons and three neutrons. What is the
overall charge of the nucleus?
A. -3
B. +6
C. +3
D.O
Answer:
C- +3
Explanation:
Protons equal one positive charge, neutrons equal one neutral charge.
3 + 0 = 3
An atom's nucleus contains three protons and three neutrons. Then the overall charge of the nucleus is +3. Therefore, option C is correct.
What is neutron ?The neutron, symbol n or n0, is a subatomic particle with a neutral charge and slightly more mass than a proton. Atomic nuclei consist of protons and neutrons.
When alpha particles strike any of a number of light isotopes, such as isotopes of beryllium, carbon, or oxygen, neutrons are created. This means that an alpha-emitter, such as radium, polonium, or americium, can be combined with a low-atomic-weight isotope to create a neutron source.
The neutrons' main job in an atom's nucleus is to contribute to the nuclear glue, or binding energy, that binds the nucleus together. This is understandable as follows: Protons and neutrons make up an atomic nucleus.
Thus, option C is correct.
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How is burning wood a good illustration of the law of conservation of mass?
What is the name of the group of elements that are unreactive gases?
Actinides series
Halogen gases
Lanthanide series
Noble gases
Answer:
halogen gases is not reaction
Answer:
Halogen Gases
Explanation: