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Why helium and magnesium are both elements and not compound?
Helium and magnesium are both elements because they consist of only one type of atom. In contrast, compounds are made up of two or more different elements chemically bonded together. Helium and magnesium exist in their pure forms as single atoms without being chemically combined with other elements.
How can we determine that water is a compound not a mixture?
Water is a compound because its molecules are formed of chemically combined elements (hydrogen and oxygen) in a fixed proportion. A mixture is a combination of separate atoms, molecules, or particles that are not chemically bonded or in any fixed proportion.
Is oxygen chemically inactive?
Oxygen is chemically active because it reacts with other chemicals such as hydrogen to form water.
Is the water in a swimming pool a mixture or compound?
Water in a swimming pool is compound because the water and chlorine have been chemically combined.
What happens when you combine the elements lithium and neon?
Neon is chemically inert and doesnt combine with lithium
Is suphar dioxide an element or a compound?
compound. Because a compound is chemically combined of 2 elements
Why is a substance considered pure?
Water is pure substance because it is two elements chemically combined, rather than just mixed.
Why is water considered a pure substance?
Water is pure substance because it is two elements chemically combined, rather than just mixed.
Do mixtures change properties?
no because they arent chemically combined
What contains two or more elements chemically combined?
A compound is defined as a pure substance made up of two or more types of elements (atoms) chemically combined in a fixed proportion, and it can be further subdivided into simpler substances by chemical means only.A molecule is the smallest part of a compound, whose properties are the same as those of the compound.
Why is magnisium sulphate a compound?
It is a compound because it has two or more elements (in this case 3) chemically bonded together in a fixed ratio and structure. It is composed of the elements magnesium, sulfur, and oxygen.
Why helium and magnesium are both elements and not compound?
Helium and magnesium are both elements because they consist of only one type of atom. In contrast, compounds are made up of two or more different elements chemically bonded together. Helium and magnesium exist in their pure forms as single atoms without being chemically combined with other elements.
What is a pure substances and how does it relate to elaments and compounds?
a pure substance is something that hasn't been chemically combined with another substance and this relates to elements and compounds because on the periodic table the compounds are chemically mixed. hope this helps you by the way you didn't wwrite elements the correct way, you spelt it elaments!
How can we determine that water is a compound not a mixture?
Water is a compound because its molecules are formed of chemically combined elements (hydrogen and oxygen) in a fixed proportion. A mixture is a combination of separate atoms, molecules, or particles that are not chemically bonded or in any fixed proportion.
Is oxygen chemically inactive?
Oxygen is chemically active because it reacts with other chemicals such as hydrogen to form water.
Is it correct to say that seawater is a solution?
Because you can not see the chemicals that are chemically combined.
Why is hydrogen bromide a compound?
Hydrogen bromide (HBr) is a compound because it consists of two elements (hydrogen and bromine) that has been chemically combined to form a new substance. It is a colourless gas with an acrid odor at room temperature.
