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
makvit [3.9K]
3 years ago
6

What term describes the specific amount of time required for half of a radioactive substance to become stable

Chemistry
1 answer:
Kobotan [32]3 years ago
4 0
A half-life. This term can be seen in carbon dating when unstable carbon-14 isotopes turn into nitrogen-14 isotopes
You might be interested in
A race car driver drives 35 laps in 84 minutes what is the average laps per minute
mojhsa [17]
The average laps per minute are 2.4

8 0
3 years ago
Read 2 more answers
Cellular respiration uses sugar and _________ to produce carbon dioxide and water
Lyrx [107]
In cellular respiration, glucose and oxygen react to form ATP. Water and carbon dioxide are released as byproducts.
7 0
3 years ago
Determine the specific heat of a 70 g sample of material that absorbed 96 J as it was heated from 293 K to 313 K
Damm [24]

This problem is providing us with the mass (70 g), absorbed heat (96 J) and initial and final temperatures (293 K and 313 K, respectively) so the specific heat of the material is required and found to be 0.0686 J/(g*K) as shown below:

<h3>Calorimetry:</h3>

In chemistry, we can go over calorimetry by writing the following relationship among heat, mass, specific heat and temperature change:

Q=mC(T_f-T_i)

Thus, one can get the specific heat by solving for C in the previous equation:

C=\frac{Q}{m(T_f-T_i)}

Hence, we can plug in the given data to obtain:

C=\frac{96J}{70g(313K-293K)}\\ \\C=0.0686\frac{J}{g*K}

Learn more about calorimetry: brainly.com/question/1407669

5 0
2 years ago
¿Quién estableció el concepto moderno de elemento?
Zina [86]

Answer:

Robert Boyle

Explanation:

En muchos textos se suele considerar a Robert Boyle como el científico que introdujo en la Química un concepto de elemento diferente al empleado por los aristotélicos o por los alquimistas y que sirvió de antecedente al que formulara Lavoisier en 1789.

7 0
3 years ago
The nucleus of an atom is made up of a dense ball
Marina86 [1]

Answer:

The nucleus of an atom is made up of a dense ball

of <u>protons</u> and <u>neutrons</u> surrounded by <u>electrons.</u>

Explanation:

We know that an atom consist of electrons, protons and neutrons. Neutrons and protons are present inside the nucleus while electrons are present out side the nucleus. Electron has a negative charge and is written as e⁻. The mass of electron is 9.10938356×10⁻³¹ Kg . While mass of proton and neutron is 1.672623×10⁻²⁷Kg and 1.674929×10⁻²⁷ Kg respectively.

Symbol of proton= P⁺  

Symbol of neutron= n⁰  

The number of electron or number of protons are called atomic number while mass number of an atom is sum of protons and neutrons. The umber of protons and electrons are always equal to make the atom electrically neutral and when an atom loses its valance electron the number of protons increases and thus positive charge increased and atom form cation.

7 0
3 years ago
Other questions:
  • How many grams are there in 5.20 moles of CO2?
    11·1 answer
  • The vapor pressure of substance X is 100. mm Hg at 1080.°C. The vapor pressure of substance X increases to 600. mm Hg at 1220.°C
    13·1 answer
  • Someone txt me i need help with "work"
    5·1 answer
  • The identity characteristics of an element is its number of __
    12·1 answer
  • Answer the following questions: On a 10-fold dilution of a weak acid, the pH will ___________________. On a 10-fold dilution of
    5·1 answer
  • Place books, purses, and such items in the designated storage area. Take only laboratory Manuel’s and notebooks into the work ar
    13·2 answers
  • Name one reason life was impossible on early earth
    10·2 answers
  • SCIENCEEEE!!!! HELPPPPP MEEEE OUTTTT!!!!
    15·1 answer
  • How many electrons does cesium gain or lose
    15·1 answer
  • Convection currents are caused by...
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!