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
Ainat [17]
2 years ago
5

Which pair must represent atoms of the same element?

Chemistry
1 answer:
andrew-mc [135]2 years ago
4 0
Your answer is B and the element is Carbon

So what your looking for is matching isotopes. Isotopes are elements that are the same in amount of protons but different in mass meaning different number in neutrons. Because when you add the total protons and neutrons together you get your atomic mass. So this can be written as X=said element, top number above=different atomic mass, bottom number below=atomic number. Hope this help!!

Be careful because answer A has same masses but different atomic numbers so different atoms(elements)!!!
You might be interested in
What is the atomic number of the yet-undiscovered element directly below francium ( Fr) in the periodic table?
kakasveta [241]
The atomic number of Francium is 87.
4 0
3 years ago
Does a high melting point mean the substance will melt faster or slower?
user100 [1]

Answer:

slower...............

.

..

5 0
2 years ago
Read 2 more answers
Chemical formula of binary compound a of oxygen acidic<br>​
Reika [66]

A binary compound of oxygen with another element is called oxide. An oxide is a binary compound of oxygen and another element. Oxygen combines with metals and non-metals to form respective oxides.

8 0
3 years ago
PLEASE HELP DUE IN 1 HOUR
NARA [144]

Answer:

All the carbon will combust with atmospheric oxygen to form carbon dioxide. This means that the charcoal present will become consumed to form colorless carbon dioxide gas.

Explanation:

8 0
2 years ago
Classify which compounds will dissolve in water and which ones will not dissolve in water.
vredina [299]

Answer:

Dissolves in water: Acetone, 1-propanol, Methanol

Do not dissolve in water: Hexane, Decane

Explanation:

From the principle that like dissolves like,polar substances will dissolve in polar solutions, while non-polar substances will dissolve in non-polar substances.

Water is a polar solution, therefore, polar substances will dissolve in it.From the given options:

Acetone is a polar molecule, therefore, it will dissolve in water.

1-propanol is a polar molecule, therefore, it will dissolve in water.

Hexane is a non-polar molecule, therefore, it will not dissolve in water.

Methanol is a polar molecule, therefore, it will dissolve in water.

Decane is a non-polar molecule, therefore, it will not dissolve in water

6 0
3 years ago
Other questions:
  • The normal boiling point of acetic acid is 118.1°C. If a sample of the acetic acid is at 125.2°C, predict the signs of ΔH, ΔS, a
    12·1 answer
  • Are corals minerals? Why?
    15·1 answer
  • Which of the following equations is balanced in a basic solution? A. ClO-(aq) + 2H-(aq) + 2e- Cl-(aq) + H2O(l) B. ClO-(aq) + H2O
    8·2 answers
  • Why are carbon and nitrogen essential for survival to all living organisms? A.
    12·2 answers
  • Some rice farmers burn their fields after harvest to remove leftover plant material and kill certain plant pests. You are resear
    12·1 answer
  • Convert 10erg into joule​
    8·1 answer
  • 2. 27.8 mL of an unknown were added to a 50.0-mL flask that weighs 464.7 g. The total mass of the flask and the liquid is 552.4
    15·1 answer
  • How does the Big Bang theory explain why there is a lot of hydrogen and helium in the universe?
    8·1 answer
  • The Principle Quantum Number describes what aspect of electron orbitals?
    14·1 answer
  • Kelli and Jarvis are members of the stage crew for the Variety Show. Between acts, they must quickly move a Baby Grand Piano ont
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!