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It means that the compound, whatever it is, is always that. If we look at something like table salt, which is sodium chloride (NaCl), it will always be NaCl when we see it. Yes, it may separate into ions in solution or something like that, but sodium chloride will always be NaCl. It will always be one atom of sodium ionically bonded to one atom of chlorine. It always has that same composition. :p
What else can I help you with?
What do Chemical composition describes?
"chemical composition" is talking about the individual chemicals that make up a substance. The chemicals it is composed of. eg, wood is mainly carbon, with some water (which is hydrogen and oxygen) and various minerals.
Do compounds usually have variable ratios where as mixtures usually have fixed ratios?
No, its the opposite. Compounds have fixed ratios, think of H20, while mixtures can vary. You can make many types of mixtures out of the same things. Because of bonding compounds have fixed ratios.
Why is the law of definite composition important?
Think of it in terms of a scientist performing a lab experiment. He/she will need to know the specific amounts of substance required to obtain the desired reaction. The law is fundamental for stoichiometry operations.
What is always involved when physical or chemical changes occur in matter?
When physical changes occur in matter, the substance's state or appearance changes without altering its chemical composition. In contrast, chemical changes involve a modification in the substance's chemical composition, resulting in the formation of new substances.
Does a change of state always occur in a chemical change?
not always, like the change is in the display without change in composition then it is change of state, other then will be chemical change
Does the composition of a substance always stay the same?
The composition of pure substances, such as elements and compounds, are always the same. The composition of mixtures can vary.
What always stays the same in a compound?
a compound always has the same chemical formula
Do compounds have varying compositions?
No. A compound will always have the same composition.
What do Chemical composition describes?
"chemical composition" is talking about the individual chemicals that make up a substance. The chemicals it is composed of. eg, wood is mainly carbon, with some water (which is hydrogen and oxygen) and various minerals.
Does a compound have compositions that vary?
Yes, the composition of a compound is fixed and consistent, always containing the same ratio of elements. This is a fundamental characteristic of compounds and is defined by their chemical formula.
All minerals are chemical compounds?
This statement is not accurate. Minerals are naturally occurring inorganic substances that have a specific chemical composition and crystal structure, but they are not always chemical compounds. Some minerals, such as native elements like gold and silver, are composed of a single element rather than a compound.
In a chemical change what is always formed?
A chemical change always forms one or more products which can be elements, molecules, and/or compounds.
What does a chemical change always do?
A chemical change always changes the chemical composition of the reactants to produce products with new and unique properties, different from the reactants.
Do compounds always contain the same elements in the ratio?
No, compounds do not always contain the same elements in the same ratio. Compounds are formed by the combination of two or more elements in fixed proportions by mass. The ratio of elements in a compound is determined by the chemical formula of the compound.
Do compounds usually have variable ratios where as mixtures usually have fixed ratios?
No, its the opposite. Compounds have fixed ratios, think of H20, while mixtures can vary. You can make many types of mixtures out of the same things. Because of bonding compounds have fixed ratios.
Do compounds have variable composition?
No. Compounds have a definite composition, therefore they are pure substances. For example, water always has the formula H2O, sodium chloride (common table salt) always has the formula NaCl, and glucose (blood sugar) always has the formula C6H12O6.
Why is the law of definite composition important?
Think of it in terms of a scientist performing a lab experiment. He/she will need to know the specific amounts of substance required to obtain the desired reaction. The law is fundamental for stoichiometry operations.
