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
Rainbow [258]
2 years ago
10

Fill in the blanks regarding the functions of a catalyst: ________________ the rate of a reaction. Provides an alternative _____

__________ for a reaction. Is not _______________ by the reaction.
Chemistry
1 answer:
Valentin [98]2 years ago
4 0

Answer:

1. increases

2. pathway by lowering down the activation energy

3. used

You might be interested in
Uranium-238 decays to lead-206 with a half-life of 4.5 x 109 yr. Determine how much uranium-238 decays in milligrams (to three s
Mamont248 [21]

Answer:

2.15 mg of uranium-238 decays

Explanation:

For decay of radioactive nuclide-

                        N=N_{0}.(\frac{1}{2})^{\frac{t}{t_{\frac{1}{2}}}}

where N is amount of radioactive nuclide after t time, N_{0} is initial amount of radioactive nuclide and t_{\frac{1}{2}} is half life of radioactive nuclide

Here N_{0}=4.60 mg, t=4.1\times 10^{9}yr and t_{\frac{1}{2}}=4.5\times 10^{9}yr

So,N=(4.60mg)\times (\frac{1}{2})^{\frac{4.1\times 10^{9}}{4.5\times 10^{9}}}

so, N = 2.446 mg

mass of uranium-238 decays = (4.60-2.446) mg = 2.15 mg

3 0
3 years ago
If 5.100 g of c6h6 is burned and the heat produced from the burning is added to 5691 g of water at 21 °c, what is the final temp
emmasim [6.3K]
  <span>C6H12 = 6x12 + 6x1 = 78. 
The equation indicates that 2x78 = 156g benzene will produce 6542kJ. 
Using proportions you can then calculate that 
x/6542kJ = 7.9g / 156g 
x = 331.3kJ = 331300J. 

heat = mass x ΔT x 4.18J/g° 
ΔT = 331300J / (5691g x 4.18J/g°) = 13.9° 

final temp = 21 + 14° = 35°C</span>
4 0
3 years ago
A student is building an electrical circuit.
Savatey [412]

Answer:

A a metal such as copper

Explanation:

5 0
3 years ago
Read 2 more answers
What impact can limiting factors have on a population?
Salsk061 [2.6K]

Answer:

The answer is B. Limiting factors can lower birth rates, increase death rates.

7 0
2 years ago
Read 2 more answers
What does the interquartile range represent?
Marizza181 [45]

Answer: C) middle 50 percent of the data

The interquartile range (IQR) spans from the first quartile Q1 to the third quartile Q3.

25% of the data is below Q1 and 75% of the data is below Q3. The gap between the two endpoints consists of 75-25 = 50 percent of the data, or half of the data.

3 0
3 years ago
Read 2 more answers
Other questions:
  • 1cg is equal to what
    13·1 answer
  • power plants can be powered by fossil fuels, such as coal or natural gas, or nuclear power to produce steam to turn turbines to
    13·1 answer
  • Which reaction would cause an increase in entropy? A. SO2Cl2(g) SO2(g) + Cl2(g) B. PCl3(g) + Cl2(g) PCl5(g) C. 2CO(g) + O2(g) 2C
    15·2 answers
  • Given the equation I = Q/t, solve for t.
    9·1 answer
  • 1.Vertical columns in the periodic table indicate what information? A.periods B.liquids C.synthetic elements D.groups and famili
    14·1 answer
  • Determine which elements or compounds are products in the<br> follow reaction equation:
    14·1 answer
  • Should I say sorry to a boy who was tryna steal my friends backpack as a joke and I was tryna kick his hand and I kicked his nos
    9·1 answer
  • . A reaction in which A, B, and C react to form products is first order in A, second order in B, and zero order in C. a) Write a
    9·1 answer
  • Density of water is 1 g/ml. If a piece of wood with a density of 5 g/ml is
    9·1 answer
  • 40
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!