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
Scorpion4ik [409]
3 years ago
14

platinum is used as a catalyst to break down harmful gases in car exhaust into less harmful gases. Which statement best describe

s platinum in this use
Chemistry
1 answer:
kicyunya [14]3 years ago
7 0
The platinum catalyst is intended for decrease the toxicity of combustion gases.
2CO + O₂ = CO₂
2NO = N₂ + O₂
2NO₂ = N₂ + 2O₂
But at the same time the carbon dioxide - greenhouse gas is formed.
You might be interested in
when you put a book on a table the table pushes on the book is that newton's 1st,2nd,or 3rd law of motion ? 
ohaa [14]
The table pushes the book and the book pushes the table
It's 3rd law
8 0
3 years ago
Which of the following changes can alter the form of a substance but does not necessarily change it to an other substance?
Goshia [24]

Answer:

  • The physical changes can alter the form of a substance but does not necessarily change it to an other substance

Explanation:

  • The physical properties of matter is one that does not depend on composition.It just change the form of matter into another form with changing into composition.
  • Physical properties include: appearance, texture, color, odor, melting point, boiling point, density, solubility, polarity, and many others.
  • The three states of matter are: solid, liquid, and gas. The melting point and boiling point are related to changes of the state of matter. All matter may exist in any of three physical states of matter.

Example:

  1. When water is boiled then it change into vapors. Now the form of water is change but its composition is same like water
  2. When water freezes into ice, now phase are different i.e water is liquid while ice is solid but both have same composition.
8 0
3 years ago
Why was mass lost from the crucible during the reaction?
Alexxandr [17]
If the crucible wasn't covered with a lid the reactants may have produced a gas that was released into the surroundings, or mass may have been lost in the form of water vapour.
6 0
3 years ago
Required nutrients in foods that are made by other living organisms are_______
Mazyrski [523]

Answer: Vitamins

Explanation:

they are nutrients that are made by living things

5 0
3 years ago
What volume is used to calculate the volume of a solid object ​
Degger [83]

Answer:

cubic measurements

Explanation:

i.e. cubic meter or cubic centimeter

3 0
3 years ago
Other questions:
  • What is a chemical energy
    6·1 answer
  • What is the name of the state when electrons absorb energy and move to a higher energy level?
    8·1 answer
  • Write the full ground-state electron configuration for each:<br> (a) Rb (b) Ge (c) Ar
    13·1 answer
  • You need to separate two substances that make up a compund hoe coukld u go about doing it
    10·1 answer
  • When copper metal is added to silver nitrate in solution, silver metal &amp; copper (ii) nitrate are produced. What mass of silv
    11·1 answer
  • How did Bohr refine the model of the atom? How did Bohr refine the model of the atom? He developed electrochemistry. He discover
    8·1 answer
  • Why do scientists often use bacteria to produce medicines?​
    12·2 answers
  • Plsss help me :(((
    9·1 answer
  • Could to atoms of helium form a covalent bond?
    12·1 answer
  • What is the goal of the nifty home experiment
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!