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
lapo4ka [179]
3 years ago
14

What effects do catalysts have on chemical reactions?

Chemistry
1 answer:
cupoosta [38]3 years ago
8 0

Answer:

3

Explanation:

You might be interested in
What is the mole fraction of Ba(OH)2 in an aqueous solution that contains 22.8% Ba(OH)2 by mass?
antoniya [11.8K]

Answer:

0.03

Explanation:

22.8 g Ba(OH)2 (1 mol Ba (OH)2/ 171.34 g) = 0.133 mol Ba (OH)2

77.2 g H2O (1 mol H2O/18 g) = 4.29 mol H2O

X= molar fraction= mol Ba(OH)2/ mol total

X= 0.133/ (0.133+4.29) = 0.03

4 0
3 years ago
Which form of energy is directly related to the measure of the average kinetic energy of the particles in a substance?
timama [110]

Answer:

thermal energy

Explanation:

4 0
3 years ago
Read 2 more answers
When the ph of an aqueous solution is changed from 1 to 2, the concentration of hydronium ions in the solution is.
kiruha [24]

Answer:

decreased by a factor of 10

Explanation:

pH is defined in such a way that;

pH= −log10(H)

Where H represents the concentration of Hydronium or Hydrogen ions

Given that pH is changed from 1 to 2,

By rearranging the above formula , we get 10−pH = H

  • if pH=1,H=10−1=0.1M
  • if pH=2,H=10−2=0.01M

Therefore,  0.1/0.01 = 10 and 0.1 > 0.01

Hence, the concentration of hydronium ions in the solution is decreased by a factor of 10

7 0
2 years ago
Bromine (Br) belongs to the halogen family. Based on the location of the halogens, how many valence electrons does bromine have?
Amanda [17]

Answer:

D. 7

Explanation:

The halogens are found in Group 7 of the Periodic Table. If Bromine is a halogen, then that means it would be found in Group 7. Also, elements in Group 7 have 7 electrons in its outer shell, Bromine would have 7 electrons in its outer shell.

3 0
3 years ago
Read 2 more answers
URGENT!!! A solution in which there is very little solute dissolved in a solvent.
ella [17]

Answer:

Is called a diluted solution

Explanation:

Having little solute makes the dissolving process in a large amount of solvent very easy to mix therefore it dilutes in the solvent

4 0
3 years ago
Other questions:
  • How does the atomic arrangement of atoms lead to its crystal structure like was seen in the sample of bronze with gold (Au) and
    8·1 answer
  • If 200 ml of 0.30 M formic acid is added to 400 ml of water, what is the resulting pH of the solution? Round the answer to one d
    6·2 answers
  • Has boiling vents in the datk door
    9·1 answer
  • Which term best describes this reaction?
    13·2 answers
  • The angular momentum quantum number for the outermost electrons in a phosphorus atom in the ground state is __________.
    8·1 answer
  • Predict the shift in equilibrium position that will occur for each of the following reactions when the volume of the reaction co
    15·1 answer
  • HELP ASAP PLEASE!!! WILL MARK BRAINLIEST, ONLY ANSWER IF YOU'RE SURE
    9·2 answers
  • What the ph for .05 HBr
    12·1 answer
  • The actual density of iron is 7.874 g/mL. In a laboratory investigation, Jason finds the density of a piece of iron to be 7.921
    5·1 answer
  • Questions & Conclusions:
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!