The bright-line spectrum of an element in the gaseous phase is produced as
Answers
Related Questions
Which part of experimental design is most important to a scientist when replicating an experiment? Having exactly the same data as the previous experiment using the same procedure and variables as the previous experiment conducting an experiment similar to the previous experiment using the same laboratory that was used in the previous experiment
a teacher describes a mathematical system that can be used to convert the weight of water to the mass of water
Which of the following is a product formed when NaCl decomposes? A. Na2 B. Nac2 C. cl2
Mass is measured against a standard by using a balance. a. True b. False
Answers
According to that:
= 4.8 mole * 98 g/mole = 470g
m(solution) = m(H2SO4) + m(solvent) = 470 + 1000 = 1470 g
d(solution) = m(solution) / V(solution) =>
=> 1.249 g/mL = 1470 g / V(solution) =>
Answer: 4.078 M
Explanation:
Answers
1. Many ionic substances will dissolve completely in water to form an aqueous solution of cations and anions; this solution will conduct electricity.
2. The substance will have a slightly lower melting point than a mid-level covalent network solid.
3. The substance will certainly not conduct electricity as a solid.
Answer:
The substance will certainly not conduct electricity as a solid.
Explanation:
edge
Research nuclear energy and its use for generating electricity.
Directions
Use the library, internet, and other educational resources to research nuclear energy.
Write a three-paragraph report on what you have learned. Be sure to include the uses of nuclear power, how it is generated, and the impact it has on the environment. Also, answer the question, "Is nuclear energy renewable?"
Answers
Yes.Nuclear energy is renewable
mass
neutrons
electrons
Answers
Answer:energy
Explanation:
Energy can be added to an atom to cause a non-valence electron in the atom to temporarily become a valence electron. The correct option is A.
What are valence electrons?
Valence electrons are those electrons that are present in the outermost shell of the atom. These electrons are free to form bonds with another atoms.
Non-valence electrons are preset in the inner shell of the element. These shell are fulfilled with electrons, and these electrons does need to form bonds with other atoms to fulfill their orbit.
The electrons in the orbit have different energies present. The energy change when the electrons transfer from one shell to another shell. When energy is given to the electron, they move to the higher orbit or shell.
Thus, the correct option is A, energy.
To learn more about valence electrons, refer to the link:
#SPJ6
2H2O yields 2H2 + O2
H2 + Cl2 yields 2HCl
2Li + CaO yields Li2O + Ca
CH4 + 2O2 yields CO2 + 2H2O
Answers
H2+Cl2 yields 2HCl could be the answer, as it starts with 2 reactants and ends with one product, something found in synthesis reactions.
The third answer is incorrect because even though there are no decompositions of single products, the metal exchanges positions, something that only occurs in decomposition reactions.
In the fourth answer is also incorrect because the methane is oxidized. This only happens in decomposition reactions.
The correct answer, then, is B.