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What else can I help you with?
What would a control be for an experiment to see whether fertilizer helps a plant to grow?
answer: compare a plant not given fertilizer to a plant given fertilizer..
What are the basic needs of organisms?
1. evirement 2. cells 3.energy given off by the sun
How is watching TV scientific?
The act of sitting and watching TV is not scientific. Science is about making observations, formulating hypotheses, gathering data, and testing whether these hypotheses are supported. You can be scientific about what you watch on TV, in the sense that you can judge whether the information given was collected in a scientific manner, and you can be a critical judge of the information given (instead of accepting everything just because it's on TV), which are qualities of a good scientist.
Write the cell theory?
The Cell Theory is one of the basic principles of biology. Credit for the formulation of this theory is given to German scientists Theodor Schwann, Matthias Schleiden, and Rudolph Virchow. states: All living organisms are composed of cells. They may be unicellular or multicellular. The cell is the basic unit of life. Cells arise from pre-existing cells.
What features do all gas exchange systems have in common?
All plants, animals, fish etc, need gas from the air to breathe. Whether it be carbon dioxide, oxygen from water or our atmosphere, its pretty much a given.
Why wet litmus paper it is used to cheque whether the given solution is acidic or basic?
Because litmus change color depending on the pH: red in acidic solutions and blue in basic solutions.
How You are given three clear colorless unknown solutions and red and blue litmus papers. Describe the steps you might take to correctly identify each solution as acidic basic or neutral.?
Test each unknown solution with both red and blue litmus papers. If red litmus turns blue, the solution is basic. If blue litmus turns red, the solution is acidic. If both red and blue litmus papers remain the same, the solution is neutral.
Which is the most acidic pH 2 pH 5 pH 7 or pH 11?
Most acidic is substance of pH of 2, then of pH of 5 and the substance of pH 7 is neutral and the substance of pH 11 is basic
What is the relation between pH value and nature of the solution?
The nature of the solution be it acidic or basic will determine the PH value of the given solution.
The acidbase numbering system?
The acid-base numbering system is used to classify organic compounds based on the number of acidic and basic functional groups present in the molecule. The system assigns a numerical value to the acidity and basicity of the compound, which helps in predicting its chemical properties. Compounds with higher acid numbers are considered more acidic, while those with higher base numbers are considered more basic.
What name is given to those metal oxides which show basic as well acidic behaviour?
Amphoteric oxides are metal oxides that exhibit both acidic and basic behavior depending on the pH of the solution. Examples include zinc oxide and aluminum oxide.
What is pH and how is it used?
pH is the negative logarithm of [H+] ion concentration in a given solution. pH = -log[H+] It is basically used to check the acidity or basicity of the solution. Lower the pH, more acidic is the solution. At room temperature pH=7 represents neutral solution and pH<7 or pH>7 represents acidic or basic solution respectively .
What is indicator How does it indicates completion of neutralization?
An indicator refers to a substance that changes color to show how a given substance is either acidic or basic.
What is potassium-bromide pH?
Potassium bromide has not acidic or basic properties, so a solution of it will have a pH of 7. Note: no substance has a a pH to go with it. pH depends on both the strength of an acid or base on how much is dissolved in a given volume of water.
What do you know about the pH scale?
The pH scale is a physics scale that measures the pH balance of something (obvious). It ranges from 1-14, 1 being the most acidic and 14 being the most basic. Water is neutral at 7 pH. A common acid is vinegar and a common base is bar soap. The pH scale is a scale designed to determine the acidity or basidity of a given substance and ranges from 0-14 with 7 being neutral, a substance that is between the range of 0 and 7 determines the acidity of a substance with 7 being neutral and 0 being extremely acidic while the range 7-14 determines the basidity of a substance with 7 being neutral and 14 being extremely acidic. It can be said that the acidity or basidity grows stronger the farther it is from 7.
What pH ranges is a strong base 1ph13 20 ph45 52 ph71 90 or pH 112 120?
The values given are not correct for pH. But the answer is as follows:pH will range from 0 to 14.A pH of 7 indicates neutral solution; pH below 7 for acidic solution and pH above 7 indicates basic solution.pH of 14 will be the most basic.pH values cannot be over 14 as given in the question.
Describe in detail the pH scale for acids and bases?
the pH scale goes from 0 to 14. 0-3 is strong acid (eg. hydrochloric acid), 4-6 is not strong acid. 7 is neutral, eg. water. 8-10 is not strong alkali (base) and 11-14 is strong alkali (eg.sodium hydroxide)
