Which best explains why blood is considered to be a suspension?A)It has nutrients that cannot be dissolved
b)It contains particles that can settle out.
C)It has nutrients that are dissolved in its liquid portion.
D)It contains particles that mix on a molecular level.
Answers
The definition of suspension is a heterogeneous (that is same in all parts) mixture that contains particles that could undergo sedimentation (settle down) - this definition is close to b). It should not matter whether those particles are nutrients( so A or C are not good answers).
Answer:
I think the best answer is b
Explanation:
I think the best answer is b
Related Questions
Which of the following values best classifies a bond between 2 atoms as being ionic?A. An electronegativity difference of greater than 1.7 between the atoms B. An electronegativity difference of greater than 2.7 between the atoms C. An electronegativity difference of less than 1.7 between the atoms D. An electronegativity difference of less than 2.7 between the atoms
An atomic nucleus must contain at least one neutron or else the force of attraction of the electron(s) will collapse the atom. True/false
In relation to chemical solutions, which term does not express a degree of saturation?A: unsaturatedB: saturatedC: supersaturated D: oversaturated
A catalyst is added to a system at equilibrium. If the temperature remains constant, the activation energy of the forward reaction(1) decreases(2) increases(3) remains the same
Answers
Option (b)
Zirconium belongs to group IV and 5th period of the periodic table. The electronic configuration is here, Kr belongs to 18th group (noble gas) with atomic number 36 and electrons per shell is 2, 8, 18, 8.
Since, atomic number is equal to number of protons and number of electrons, atomic number of zirconium will be 36+2+2=40.
Thus, atomic number of zirconium is 40.
B) nitrogen (N)
C) silicon (Si)
D) sulphur (S)
Answers
The element that has four total electrons in its outer P orbitals is
Sulphur (s) (answer D)
Sulphur is in group 16 and period 3 in the periodic table therefore Sulphur is in atomic number 16.
Sulphur (S) electronic configuration is 1S2 2S2 2P6 3S2 3P4 or [Ne] 3S2 3P4 therefore the 3P4 subshell of sulphur has only 4 electrons.
Answers
The compound that is a saturated hydrocarbon is CH3CH2OH. The answer is letter A. A saturated hydrocarbon has only one single bond between the carbon atoms. The compound that is an unsaturated hydrocarbon is CHCH. The answer is letter D.
I NEED EXPLANATION FOR BOTH QUESTIONS, PLEASE HELP ME! :)
Answers
1. Option C, unsaturated compounds are those which have multiple bonds (double, triple bonds between carbon atoms). Among the given, only C has double bond between Carbon atoms hence unsaturated compound.
2. Option A, there is only one pair of electrons between nitrogen atoms . One single covalent bond between two Nitrogen atoms by two electrons or one electron pair.
1 pair of electrons
gasoline
carbon
glucose
Answers
Answer: The correct answer is carbon.
Explanation:
Combustion reaction is defined as the reaction in which a hydrocarbon burns in oxygen or reacts with oxygen gas to produce carbon dioxide and water molecule.
Fossil fuels are defined as the hydrocarbons which mainly contains coal, fuel oil, natural gas etc..
When fossil fuels are burned in air, it mainly releases carbon dioxide, sulfur dioxide, methane, nitrous oxide etc..
The major component released during the combustion of fossil fuels is carbon.
Hence, the correct answer is carbon.
Answers
They are found all over the body and can also be called merocrine glands.
Explanation:
The 2 main forms of sweat glands are eccrine sweat glands and apocrine sweat glands.
Eccrine sweat glands are smaller sweat glands. they're volute cannular glands that discharge their secretions onto the surface of the skin sweat gland.
any of the rather tiny secreter that manufactures a fluid secretion while not removing protoplasm from the secreting cells which are restricted to the human skin is called eccrine sweat gland.