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
olga nikolaevna [1]
2 years ago
10

Please help ASAP !!!!!!!!!

Chemistry
1 answer:
user100 [1]2 years ago
7 0

Answer:

A. the speed at which reactants change to products over a given time

Explanation:

The rate of reaction is a measure of the speed of a chemical reaction. In chemical kinetics, the speed at which the reaction occurs is the reaction rate.

  • The measurement of the reaction rate is based on the disappearance of a reactant or appearance of the product with increasing reaction time.
  • Rate of reaction depends on the:
  1. nature of reactants.
  2. concentration of the reactants or pressure
  3. temperature
  4. presence of catalyst
  5. sunlight
You might be interested in
LOS AMOOOO 1 AL 40 COMENTÉN​
OleMash [197]

Answer:

0 ni siquiera te conozco

Explanation:

6 0
3 years ago
Can anyone think of some interesting facts about hydrogen? I know that there are plenty, I'm just drawing a blank right now. I'l
podryga [215]
hydrogen is the lightest element in the periodic table
7 0
3 years ago
50.0 mL of an HNO^3 solution were titrated with 36.90 mL of a 0.100 M LiOH solution to reach the equivalence point. What is the
NISA [10]

Answer:

0.0738 M

Explanation:

HNO3 +LiOH = LiNO3 + H2O

Number of moles HNO3 = number of moles LiOH

M(HNO3)*V(HNO3) = M(LiOH)*M(LiOH)

M(HNO3)*50.0mL = 0.100M*36.90 mL

M(HNO3) = 0.100*36.90/50.0 M = 0.0738 M

6 0
3 years ago
compared to maximum number of electrons that can occupy the d sublevel the max number of electrons that can occupy s sublevel
morpeh [17]
D-sublevel can occupy 10 electrons whereas s-sublevel can occupy 2 electrons...
5 0
3 years ago
The atomic symbol Superscript 206 subscript 82 upper P b. represents lead-206 (Pb-206), an isotope that has 82 protons and 124 n
Serggg [28]

Answer:

\left \{ {{y=206} \atop {x=82}}Pb \right.

Explanation:

isotopes are various forms of same elements with different atomic number but different mass number.

Radioactivity is the emission of rays or particles from an atom to produce a new nuclei. There are various forms of radioactive emissions which are

  • Alpha particle emission  \left \{ {{y=4} \atop {x=2}}He \right.
  • Beta particle emission    \left \{ {{y=0} \atop {x=-1}}e \right.
  • gamma radiation             \left \{ {{y=0} \atop {x=0}}γ \right.

in the problem the product formed after radiation was Pb-206. isotopes of lead include Pb-204, Pb-206, Pb-207, Pb-208. they all have atomic number 82. which means the radiation cannot be ∝ or β since both radiations will alter the atomic number of the parent nucleus.

Only gamma radiation with \left \{ {{y=0} \atop {x=0}}γ \right. will produce a Pb-206 of atomic number 82 and mass number 206 , since gamma ray have 0 mass and has 0 atomic number.equation is shown below

\left \{ {{y=206} \atop {x=82}}Pb\right ⇒ \left \{ {{y=206} \atop {x=82}}Pb\right +  \left \{ {{y=0} \atop {x=0}}γ\right.

Thus the atomic symbol is \left \{ {{y=206} \atop {x=82}}Pb\right

8 0
3 years ago
Read 2 more answers
Other questions:
  • Compare the mass number and atomic number for isotopes of an element
    9·1 answer
  • Which of the following chemical equations is balanced?
    10·2 answers
  • If 15 grams of Carbon dioxide is produced in a chemical reaction, how many grams of Carbon must be consumed in the reaction if w
    15·1 answer
  • If you walk out into the ocean, you will see that the land covered by ocean water slopes very slowly away from the coastline. Th
    11·2 answers
  • Two liquids are combined and a gas is released is this a chemical change?​
    5·2 answers
  • All living things are made of​
    14·2 answers
  • HelpPPPPP pleaseeeeEEEEE
    9·1 answer
  • Which resource produces the cleanest energy?
    8·1 answer
  • Is John Cena a rabbit?
    7·2 answers
  • A crystallographer measures the horizontal spacing between molecules in a crystal. The spacing is 16.84 nm. What is the total wi
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!