Answer: The answer is False (No). All helium atoms have 2 protons in their nucleuses (nuclei). If an atom has only 1 proton it its nucleus, then it is a hydrogen atom. (it behaves like other hydrogen atoms, not like a helium atom.)
Answer:
FALSE
Explanation:
The answer is False (No). All helium atoms have 2 protons in their nucleuses (nuclei). If an atom has only 1 proton it its nucleus, then it is a hydrogen atom. (it behaves like other hydrogen atoms, not like a helium atom.)
b. the difference in oxidation potentials of the half-cells
c. the sum of reduction potentials of the half-cells
d. the sum of the oxidation of potentials of the half cells
Wine is a homogenous mixture while beef stew is a heterogeneous mixture as it has components which are clearly visible.
Heterogenous mixtures is defined as a type of mixture where in the composition is not uniform throughout the mixture.It consists as two or more phases. The phases are chemically distinct from each other.
As there are two or more phases present in heterogenous mixtures they can be separated by solvent extraction where in one phase is miscible with the solvent and the other phase is immiscible.
Components of a heterogenous mixtures are distinctly visible . There are two types of heterogenous mixtures, the colloids and the suspensions.These two vary with each other with respect to particle size.
Learn more about heterogeneous mixtures,here:
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The equation is balanced.
The number of P atoms in the reactant side is 4 and the number of P atoms in the product side is also 4.
The number of O atoms in the reactant side is 16 and the number of O atoms in the product side is also 16.
The number of H atoms in the reactant side is 12 and the number of H atoms in the product side is also 12.
These results are in accordance with the law of conservation of mass.
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In this reaction there is conservation of
(1) mass, only
(2) mass and charge, only
(3) charge and energy, only
(4) charge, energy, and mass
Answer: option (4) charge, energy, and mass.
Justification:
1) Charge, energy, and mass are always conserved in every chemical reaction.
Charge, energy and mass are not created nor destroyed, but can be transferred.
2) The charge can only be transferred by the motion of electrons, so the charge can move and end up on a different atom, but when you add up all the charge is conserved.
The charge balance is verified in the given equation since:
left side right side
(1+) + (1-) = 1 - 1 = 0 0
∴ The total charge of the reactants equals the total charge of the products.
3) As for energy, the right side shows the "apparition" of some energy. That means that the reaction is exothermic, i.e. it releases energy.
The energy released is the net result of the difference in the potencial chemical energy of the bonds of the products and the reactants.
The reactants have more chemical energy stored than the reactants, so potential energy was transformed into heat energy.
4) As for the mass, its conservation is verified when you check that there are the same number of particles of each spieces: two particles of hydrogen in the reactand side, such as in the products; and the particles of oxygen are one in the reactants and one in the products.