CHEMISTRY HIGH SCHOOL

A chemical change is a change in the ______ of a substance.a. composition
c. temperature
b. appearance
d. melting point

Answers

Answer 1
Answer: The answer is A.Composition

Why is (A) the answer?
When we look into the chemical definition of Composition, it says that it all refers to the way the atoms are arranged  or of the type of the atoms in molecules of chemical substances.
The chemical composition varies (which also means it changes) when other chemical changes happen/occur in chemicals.
And as well we are making a total new substance when we give it a change chemically.

So in conclusion, a chemical change is a change in the COMPOSITION of a substance
Answer 2
Answer: Most appropriate answer is option A i.e., Composition.

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A given substance is , meaning that is can easily pass through fatty substances and mix with them freely. However, this substance does not mix well with molecules that are polar. Only substances mix well with polar molecules.
Which type of chemical reaction does this equation exemplify?
A gas cylinder contains 2.0 mol of gas X and 6.0 mol of gas Y at a total pressure of 2.1 atm. What is the partial pressure of gas Y?
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What type of Bond exist in a molecule of hydrogen Iodide

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Is it polar covalent?

Which layer of the Epidermis contains flat dead cells filled with keratin and surrounded by lipids? (a) Stratum Spinosum (b) Stratum Squamosum (c) Stratum Lipidosum (d) Stratum Corneum

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D. Stratum Corneum

The layer of the epidermis that contains flat, dead cells filled with keratin and surrounded by lipids is (d) Stratum Corneum. This layer is the outermost layer of the epidermis and serves as a protective barrier for the skin, preventing the loss of water and protecting against external pathogens and environmental factors. The accumulation of keratin and lipids in the stratum corneum gives it its characteristic properties.

Research about the reaction of baking soda and vinegar

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Baking soda and vinegar react because of an acid-base reaction. The product of this creates carbon dioxide.

The difference between the transmissivity of shortwave insolation and longwave terrestrial radiation by various atmospheric gases is better known as the _________________.

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Answer:

greenhouse effect

Explanation:

Greenhouse effect -

It is the process by which the radiations on the planet gets trapped inside its atmosphere and increases the temperature of the planet , is referred to as the process of greenhouse effect .

Few gases are responsible to show this process , like carbon dioxide . methane , water vapour etc.

The process of greenhouse is important for the planet to sustain life , as it makes the planet warm and thereby don't allow the planet to freeze ,

But  excess of greenhouse effect can make the planet extremely warm , and lead to a condition of global warming .

Hence , from the given information of the question ,

The correct answer is greenhouse effect .

Equation that shows the formula of the reactants and products are called

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Answer:

chemical equation

Explanation:

Please help me i need help

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USA test prep science intern assessment? :P
I believe its A.
The answer is A.mitochondria
It has a double membrane, the inner layer being folded inward to form layers
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What element is used in a liquid metal used in thermometers
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Why does copper have a high melting point?