compound or mixture
compound
A pure substance is made out of only one kind of element (for example, gold is a pure substance). A mixture is made out of two or more different substances and is only combined by physical means. A pure substance cannot be broken down into a simpler substance. A mixture can be separated into its component parts.
There is not enough information given to unambiguously answer the question.A "pebble" is a small piece of rock. What KIND of rock? It matters. Is it a brimstone pebble? Then it's an element. Is it a limestone pebble? Then it's a compound. Is it a granite pebble? Then it's a mixture.
A pure substance is a homogeneous chemical substance which means its composition is constant and its properties are consistent too. Some examples of this kind of substances are water, baking soda and sucrose.
Sulfur dioxide is a chemical compound. It is a mixture between sulfur and oxygen and it is commonly called SO2.
its a mixture as we can separate it by chromatography
A mixture
Chemical Substance
Chemical Substance
eggshell is a kind of compound CaCO3 (calcium carbonate)
a mixture is not a substance
it's a mixture compound. Kind of a confounded compound mixture.
A mixture is a substance composed of two or more components physically combined. An element is a pure substance composed of one kind of atom. A compound is a pure substance formed when atoms of two or more elements chemically combine.
Sucrose is an ionic compound!!
No, it's a pure compound (at least, it can be; sugar you buy at the grocery store might not be absolutely pure). Chemically speaking "sugar" is a class of compounds. There are lots of different sugars: sucrose (this is cane sugar, the grocery store kind), glucose (blood sugar), maltose (malt sugar), galactose and lactose (sugars found in milk), fructose (fruit sugar), and many others (you may have noticed a pattern: the names of sugars tend to end with -ose). Yes Sugar is a mixture
A homogeneous mixture is a mixture where the composition is uniform throughout, so it looks as if there is only one thing. A compound is a substance that contains two or more elements chemically combined in a fixed proportion. A pure substance is a substance that contains only one kind of matter.
It's a substance
No. Pure water is a compound and therefore a pure substance