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
Daniel [21]
3 years ago
11

a substance which alters the rate of a chemical reaction but is not permanently changed by the reaction is called a(n)__________

_​
Chemistry
1 answer:
jekas [21]3 years ago
5 0

Answer:

catalyst

Explanation:

a substance which alters the rate of a chemical reaction but is not permanently changed by the reaction is called a catalyst

You might be interested in
List 4 physical properties of each of the following:
Bogdan [553]
A piece of paper is thin, slighlty smooth, can be white and smells woody. 500 g of butter has a density of  0.911 g/ml and has a volume thus of 548.85 ml. Butter has a color yellow and smells fatty. A glass of milk has a white color, sour smell and taste and the milk occupies the volume of glass. Candle is waxy, can be long or short, can have colors of different varieties and is cylindrical. 
3 0
3 years ago
32.7 grams of water vapor takes up how many liters at standard temperature and pressure (273 K and 100 kPa)?
kotegsom [21]
Under standard temperature and pressure conditions, it is known that 1 mole of a gas occupies 22.4 liters.

From the periodic table:
molar mass of oxygen = 16 gm
molar mass of hydrogen = 1 gm
Thus, the molar mass of water vapor = 2(1) + 16 = 18 gm

18 gm of water occupies 22.4 liters, therefore:
volume occupied by 32.7 gm = (32.7 x 22.4) / 18 = 40.6933 liters

5 0
3 years ago
How many formula units are contained in 0.57 g Cao?
joja [24]
Then you will multiply the number of moles by 6.022×1023formula units/mol . To determine the molar mass of a compound, add the atomic weight on the periodic table in g/mol times each element's subscript. Since the formula unit CaO has no subscripts, they are understood to be 1
7 0
3 years ago
Which words have the most negative connotation <br>a)pain<br>b)agony<br>c)discomfort<br>d)distress​
gladu [14]

the the answer is b agony

8 0
3 years ago
Read 2 more answers
Which of the following best defines climate)_( Short-term atmospheric conditions of a region Ob The weather pattern of an area o
Marina86 [1]

Answer:

Average weather conditions of a region over the long term

Explanation:

Climate is the long-term average of weather, typically averaged over a period of 30 years. More rigorously, it denotes the mean and variability of meteorological variables over a time spanning from months to millions of years.

4 0
3 years ago
Other questions:
  • Which of these is a typical property of a substance that is composed of atoms that are held together by covalent bonds?
    10·2 answers
  • Combining 0.381 mol of Fe2O3 with excess carbon produced 17.4 g of Fe.
    13·1 answer
  • Why the liquid with median density floats where it does . ?
    5·1 answer
  • What is the difference between a closed system and open?
    5·1 answer
  • Based on the article "Will the real atomic model please stand up?,” describe what Dalton’s theory states about a molecule of wat
    11·2 answers
  • Summarize the history of the periodic table
    8·1 answer
  • The bond between carbon and hydrogen is one of the most important types of bonds in chemistry. The length of an H—C bond is appr
    13·1 answer
  • Lab: Limiting Reactant and Percent Yield
    5·1 answer
  • Difference between sublimate and distillate
    8·1 answer
  • Convert 1.65 grams of sodium to moles of sodium
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!