It is an element.Not a mixture.
Hydrogen is not a mixture at all. It is an element and therefore a pure substance.
The sun is a star made primarily of hydrogen and helium gases undergoing nuclear fusion, making it a homogeneous mixture of elements.
No, hydrogen sulfide is a pure substance, specifically a compound, composed of hydrogen and sulfur atoms. It is not a heterogeneous mixture, which is a combination of different substances that are not uniformly mixed.
Silicon is an element, not a mixture. It is a solid metalloid that is commonly found in nature in its pure form.
Sand with shells is a heterogeneous mixture because it contains different components (sand and shells) that are visibly different and can be separated easily. In a homogeneous mixture, the components are evenly distributed and not easily distinguishable.
Heterogenous
Hydrogen is not a mixture at all. It is an element and therefore a pure substance.
Hydrogen is none of both, not being a mixture but an ELEMENT.
No, baking soda is a compound composed of sodium, hydrogen, carbon, and oxygen atoms in a fixed ratio. It is a homogeneous substance, not a heterogeneous mixture.
hetergeneous
A flower is a heterogeneous mixture.
Hydrogen Peroxide (H2O2) is a compound, and liquid at room temperature. It is NOT a mixture. However, at room temeprature it slowly decomposes to oxygen and water. 2H2O2 = 2H2O + O2 It the oxygen remains in solution in water then it is heterogeneous solution, NOT Mixture.
The sun is a star made primarily of hydrogen and helium gases undergoing nuclear fusion, making it a homogeneous mixture of elements.
No, hydrogen sulfide is a pure substance, specifically a compound, composed of hydrogen and sulfur atoms. It is not a heterogeneous mixture, which is a combination of different substances that are not uniformly mixed.
Heterogeneous mixture.
heterogeneous mixture
Sand+salt: a heterogeneous mixture.