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
erica [24]
4 years ago
10

Which of the following sets represents a pair of isotopes?

Chemistry
1 answer:
son4ous [18]4 years ago
5 0
The correct option is A,
Isotopes are atoms of an element, which have the same number of protons but different number of neutrons in the nucleus of the atom. Thus, isotopes have the same atomic number but different mass number.
Looking at the options given above, you will discover that Chlorine which is given in option A is correct. Both type of chlorine has the same atomic number, which is 17, but they have different atomic masses, the atomic mass of the first one is 35 while that of the second one is 37.<span />
You might be interested in
Plz answer ASAP
strojnjashka [21]

Answer:

this should help *not a virus

Explanation:

https://kidshealth.org/en/teens/digestive-system.html

6 0
3 years ago
83ef0c8
kumpel [21]

Answer:

0.17325 moles per liter per second

Explanation:

For a first order reaction;

in[A] = in[A]o - kt

Where;

[A]= concentration at time t

[A]o = initial concentration

k= rate constant

t= time taken

ln0.5 =ln1 - 2k

2k = ln1 - ln0.5

k= ln1 - ln0.5/2

k= 0 -(0.693)/2

k= 0.693/2

k= 0.3465 s-1

Rate of reaction = k[A]

Rate = 0.3465 s-1 × 0.50 mol/L

Rate = 0.17325 moles per liter per second

5 0
3 years ago
What mass of silver ag which has an atomic mass of 107.87 amu contains the same number of atoms contained in 10.0g of boron b wh
Masteriza [31]

To contain the same number of atoms also mean to contain the same number of moles. So let us say that X is the mass of Silver Ag required, so that:

X / 107.87 = 10 / 10.81

<span>X = 99.79 g</span>

6 0
3 years ago
Read 2 more answers
Why is identifying unknown compounds important to chemistry?
Galina-37 [17]
Determining the identity of substances is a critical part of chemistry because once the substance's identity is known, we can predict its behavior and understand the scenarios that it is involved in better.
For example, consider an industrial pipe where fouling (scaling) is occurring. If the compounds present in the scales are identified, steps may be taken to prevent and remove the scaling. This is one of many examples where identifying chemical substances is of high importance.
7 0
3 years ago
Which statement describes an interaction between the biosphere and the atmosphere that is related to
lisabon 2012 [21]

Answer:

O During photosynthesis, plants take in carbon dioxide from the air.

6 0
3 years ago
Other questions:
  • How wold you identify an arrhenius acid in a chemical equation
    12·2 answers
  • How is an atomic radius measured?
    11·1 answer
  • _____states that the physical and chemical properties of the elements are periodic within the sequence of their atomic numbers.
    10·2 answers
  • What is the Titration Method??? ​
    12·1 answer
  • Pls help me with chem equilibrium part 2!!!! Will mark brainliest
    11·1 answer
  • What part of Earth contains rocks?
    5·1 answer
  • How does reducing the use of packaging and other materials conserve resources
    6·1 answer
  • How many grams of water would require 2200 joules of heat to raise it’s temperature from 34 degrees Celsius to 100 degrees celsi
    8·1 answer
  • So, I'm on an assignment on odyssey, it is asking me a question like this:
    13·1 answer
  • How long is radioactive waste from nuclear plants radioactive?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!