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kotykmax [81]
3 years ago
9

The chemical reaction between iron (Fe) and oxygen (O) results in the loss of electrons from iron. This reaction is an example o

f _____.
A)oxidation
B)respiration
C)combustion
D)sublimation
Chemistry
2 answers:
Afina-wow [57]3 years ago
4 0

Your answer is C (i am only writing this part because i dont wanna explain it bla bla bla bla bla bla bla)

Shkiper50 [21]3 years ago
3 0

Answer:

The answer is C

Explanation:

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I would probably say transformation of virus like molecules
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What are the two factors that affect ionic bond formation? Additionally, can you describe the trends of one of these factors in
solniwko [45]

Answer:

Ionization energy of the metal and electron affinity of the nonmetal

Explanation:

An ionic bond is formed when a metal transfers electrons to a nonmetal.

M· + A ⟶ M⁺ + ·A⁻

The two main factors affecting this process are the

  • Ionization energy of the metal
  • Electron affinity of the nonmetal

1. Ionization energy

The lower the ionization energy of the metal, the more likely it is able to donate an electron.

2. Electron affinity

The higher the electron affinity of the nonmetal, the more likely it is to accept an electron,

3. Periodic trends

(a) Ionization Energy

Ionization energy increases from bottom to top and from left to right in the Periodic Table.

Thus, the atoms with the lowest ionization energy are in the lower left corner of the Periodic Table.

(b) Electron affinity

Electron affinity increases from bottom to top and from left to right in the Periodic Table.

Thus, the atoms with the highest electron affinity are in the upper right corner of the Periodic Table.

8 0
3 years ago
What causes the colors observed during a flame test
Marrrta [24]

By using flame test we can identify the elements because colors which are given by elements with flame test are unique.

During the flame test, the electrons of the atom which are in ground state absorb energy and go to upper level. This is called electron excitation. Excited electrons are unstable. Hence, they come back to the ground state by emitting the energy as photons. If that released energy has a frequency which belongs to visual light, then that wave gives a color.

3 0
3 years ago
Read 2 more answers
The uncertainty in the measurement 0.0035 mg is:_______ A) + 0.1 mg B) + 0.01 mg C) 0.001 mg D) + 0.0001 mg
Aleksandr [31]

Answer:

The correct option is (D).

Explanation:

Uncertainty means lack of certainty in any calculations. It is the quantification of doubts after the calculations are done.

In this problem, we need to find the uncertainty in the measurement 0.0035 mg. There are 4 numbers after decimal. It means uncertain digit 1/10000 is the smallest scale division.

Hence, the uncertainty in the measurement 0.0035 mg is +0.0001 mg

3 0
3 years ago
Which group on the periodic table will react with oxygen to give covalent compounds with formula XO2?
AleksandrR [38]

Explanation:

group 1 elements reacts with oxygen

4 0
3 years ago
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