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
Ksju [112]
3 years ago
9

Which element is always found in impure form

Chemistry
2 answers:
Bezzdna [24]3 years ago
7 0
C hydroyen
its aht plants breath

miskamm [114]3 years ago
7 0
C. HYDROGEN is the answer
You might be interested in
Which of the following vertebrates evolved in the Carboniferous period?
topjm [15]
Reptiles arose during the Carboniferous period. Therefore making the answer Reptiles
6 0
3 years ago
Read 2 more answers
Ammonia is oxidized with air to form nitric oxide in the first step of the production of nitric acid. Two principal gas-phase re
nevsk [136]

Answer:

4NH₃(g)  + 5O₂(g)  →  4NO(g)  +  6H₂O

2NO(g) + O₂(g) → 2 NO₂

Explanation:

First of all, we need to consider the reaction for production of ammonia. In this reaction we have as reactants, nitrogen and hydroge.

3H₂ (g) +  N₂(g)  →  2NH₃ (g)

Afterwards, ammonia reacts to oxygen, to produce NO and H₂O

The equation for the process will be:

4NH₃(g)  + 5O₂(g)  →  4NO(g)  +  6H₂O

Then, we take the nitric oxide to make it react, to produce NO₂, in order to produce nitric acid, for the final reaction:

2NO(g) + O₂(g) → 2 NO₂

3NO₂(g) + H₂O(g) → 2 HNO₃ (g) + NO(g)

3 0
3 years ago
What is the possible formula of AC if A has 2 valence electrons and C has 7 valence electron?
Brut [27]
AC2

A will lose 2
C will gain 1

Need two Cs to match A
3 0
3 years ago
What is the molarity of a solution prepared by dissolving 10.7 g NaI in 0.250 L?0.0714
hjlf

Answer:0.286M

Explanation:

10.7g / 149.89g/mol×0.25L

4 0
3 years ago
Read 2 more answers
The mass of an object is 1,000 g. It has a volume of 100 mL. What is the density of the object? D= mass/volume
maxonik [38]

Answer:

10 g/ml

Explanation:

divide mass by volume means divide 1000 by 100 and your answer will be 10

4 0
3 years ago
Other questions:
  • Atoms have a blank shape. the blank of an atom is made up of
    13·2 answers
  • Identify the number and type of atoms in the following molecules.
    12·1 answer
  • Which is more acidic, 4-ethoxyphenol or 4-nitrophenol?
    7·1 answer
  • In volumetric analysis, how does one convert concentration from g/dm3 to mol/dm3?
    10·1 answer
  • Which piece of laboratory glassware did you find to be more efficient for the solvent extraction procedure, and why?
    5·1 answer
  • Explain how changes in temperature affect the particle motion of a substance.
    14·2 answers
  • PLEASE HELP!!!! WILL GIVE BRANLIEST!!
    7·2 answers
  • A solution is
    11·1 answer
  • Magnesium most common isotope
    14·1 answer
  • A woman has a body mass of 53 kg. What is her mass in grams?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!