None of them. It is a complex system of biochemicals.
None of them. It is a heterogeneous mixture.
Baking soda is a compound, specifically sodium bicarbonate (NaHCO3). Therefore, it is not a mixture, either heterogeneous or homogeneous.
Yes, the terms heterogeneous and homogeneous can be applied to both pure substances and mixtures. A pure substance can be either homogeneous (uniform composition) or heterogeneous (non-uniform composition), depending on its physical properties. Similarly, a mixture can also be classified as either homogeneous (uniform composition) or heterogeneous (non-uniform composition) based on the distribution of its components.
No, not all mixtures are classified as heterogeneous. Mixtures can be either heterogeneous or homogeneous. Heterogeneous mixtures have visibly different components, while homogeneous mixtures have uniform composition throughout.
Hydrogen is an element.
None of them. It is a heterogeneous mixture.
Compound it cant be an element because its a diatomic or polyatomic cnt remember which one but either way its not an element its a compound. Compound it cant be an element because its a diatomic or polyatomic cnt remember which one but either way its not an element its a compound.
The purest sand is a compound, silicon dioxide. Most ordinary sand, however would contain some other materials and could be either a homogeneous or a heterogeneous mixture.
The main constituent of common table salt is a compound, with the formula NaCl and the name of sodium chloride. Actual table salt may be a mixture, with small amounts of other materials in it.
a solution can either be homogeneous or heterogeneous. if you can see the parts, it is heterogeneous. if you cant see the parts, it is homogeneous (an example is milk)
A compound can be either covalent or ionic in nature. Covalent compounds involve sharing of electrons between atoms, while ionic compounds involve transfer of electrons from one atom to another, leading to the formation of ions.
A protein can not be an element, because every protein must contain at least four elements: carbon, hydrogen, oxygen, and nitrogen. A pure protein is a compound, but it may be mixed either homogeneously or heterogeneously with other molecules that are so chemically similar that they are difficult to separate.
Compound it cant be an element because its a diatomic or polyatomic cnt remember which one but either way its not an element its a compound. Compound it cant be an element because its a diatomic or polyatomic cnt remember which one but either way its not an element its a compound.
a pure substance. either a compound or an element. Also, a solution, which is a homogeneous mixture, not a pure substance.
Actually it isn't either, nickel is an element. Look on the periodic table and you will see this, its symbol is Ni.
A simple visual observation can help determine if a brass sample is homogeneous or heterogeneous by looking for a consistent composition throughout. For soil, you would typically perform a sieve analysis to determine the particle size distribution, which can indicate homogeneity or heterogeneity based on the uniformity of particle sizes present.
a pure substance. either a compound or an element. Also, a solution, which is a homogeneous mixture, not a pure substance.