1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
liubo4ka [24]
3 years ago
14

What is the oxidation state of C in NaHCO3? O A. +4 O B. -6 O C. +1 OD. -2

Chemistry
1 answer:
antiseptic1488 [7]3 years ago
8 0
<h2>Answer:    A (+4)</h2>

Explanation:

The HCO₃ in NaHCO₃ has an oxidation state of -1. We know this because of the charge on HCO₃ and also by the fact that Na is a group 1 metal that always has a +1 oxidation state.

The sum of the oxidation states of the components of HCO₃ has to be equal to -1

⇒  H + C + 3 O  =  - 1

     A rule of redox is that Oxygen always has a - 2 oxidation state and H usually has a + 1 oxidation state

⇒ 1  + C + 3(-2)  = - 1     <em>[make C the subject of the equation and simplify]</em>

⇒                   C = -1 - 1 + 6

                      C = + 4

You might be interested in
Which of the following was a major contribution to chemistry by antoine lavoisier
Artemon [7]
 he showed that oxygen is required to burn.
8 0
3 years ago
Barium chloride bea CO2 is a binary compound because it contains
Tpy6a [65]

Answer:

Because it contains only two elements.

Explanation:

A binary compound is a compound made up of only two elements. Barium chloride contains:

1. Barium.

2. Chlorine.

Since Barium chloride contains only two elements, it is therefore a binary compound.

6 0
3 years ago
How many valance electrons does He need to get to 8
mote1985 [20]

Answer:

Any element in group 18 has eight valence electrons (except for helium, which has a total of just two electrons

5 0
3 years ago
The table lists the chemical formulas or symbols of a few common substances. Which two substances are compounds? A) aluminum and
katrin [286]
D is the correct answer

every other option contains an element
7 0
3 years ago
Read 2 more answers
Correct forms of the equation of Charles’s law is (are)
xxTIMURxx [149]

According to Charles' Law the volume of an ideal gas is directly proportional to its absolute temperature in Kelvin keeping the pressure constant.

V∝ T, P  is constant  

where V, T and P are volume, temperature and pressure

\frac{V1}{T1 } = \frac{V2}{T2}

where V₁, T₁, V₂ and T₂ are initial volume, initial temperature, final volume and final temperature.  

8 0
3 years ago
Other questions:
  • Why charcoal grills or chaecoal fires would not be used to hear the inside of a house
    10·1 answer
  • Why is it appropriate that galileo galilei is known as a leader in the study of space
    14·1 answer
  • If there were only three electron groups around an atom, how would they be arranged?
    15·1 answer
  • Choose ALL the answers that apply.
    5·1 answer
  • Which of the following pathogens is one of the exceptions to the rule of typical cell structure?
    14·1 answer
  • An irregularly shaped piece of magnesium with a mass of 11.81 g was dropped into a graduated cylinder partially filled with wate
    13·1 answer
  • Ozone gas is a form of elemental oxygen containing molecules with three oxygen atoms, O3. Ozone is produced from atmospheric oxy
    9·2 answers
  • For a system, H2(g) + I2(g) ⇌ 2 HI(g), Kc = 62.9 at 750 K. 2.80 moles of HI were placed in a 10.0-liter container, brought up to
    8·1 answer
  • What does a virus inject into a cell?
    7·1 answer
  • How many protons, neutrons, and electrons are there in a neutral atom of 60 Co (cobalt- 60 )?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!