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
BlackZzzverrR [31]
3 years ago
8

Which formula is an empirical formula?

Chemistry
1 answer:
marusya05 [52]3 years ago
4 0
In chemistry, the empirical formula of a chemical compound is the simplest positive integer ratio of atoms present in a compound. A simple example of this concept is that the empirical formula of sulfur monoxide, or SO, would simply be SO, as is the empirical formula of disulfur dioxide, S2O2.
You might be interested in
Each positive is blanched with a negative. true or false
dimulka [17.4K]

Answer:

True is the answer

6 0
2 years ago
Read 2 more answers
The table shows the amount of radioactive element remaining in a sample over a period of time.
Assoli18 [71]

It would take 147 hours for 320 g of the sample to decay to 2.5 grams from the information provided.

Radioactivity refers to the decay of a nucleus leading to the spontaneous emission of radiation. The half life of a radioactive nucleus refers to the time required for the nucleus to decay to half of its initial amount.

Looking at the table, we can see that the initial mass of radioactive material present is 186 grams, within 21 hours, the radioactive substance decayed to half of its initial mass (93 g). Hence, the half life is 21 hours.

Using the formula;

k = 0.693/t1/2

k = 0.693/21 hours = 0.033 hr-1

Using;

N=Noe^-kt

N = mass of radioactive sample at time t

No = mass of radioactive sample initially present

k = decay constant

t = time taken

Substituting values;

2.5/320= e^- 0.033 t

0.0078 = e^- 0.033 t

ln (0.0078) = 0.033 t

t = ln (0.0078)/-0.033

t = 147 hours

Learn more: brainly.com/question/6111443

7 0
2 years ago
What is the valency of Aluminium and nitrate in Al(NO3)3 ?​
Kitty [74]

Answer:xl/ck xLKsx

Explanation:sl/cs c/ls

3 0
3 years ago
Why do scientists make hypothesis
Sergeeva-Olga [200]
Scientists make hypothesis in order to make an educated guess on the outcome of the experiment.
8 0
3 years ago
Read 2 more answers
Relate what you have learned about the word quantum to the Bohr model.​
ss7ja [257]
I forgot what quantum means to be honest, the Bohr model In atomic physics, the Bohr model or Rutherford–Bohr model, presented by Niels Bohr and Ernest Rutherford in 1913, is a system consisting of a small, dense nucleus surrounded by orbiting electrons—similar to the structure of the Solar System, but with attraction provided by electrostatic forces in place of gravity. After the cubical model (1902), the plum pudding model (1904), the Saturnian model (1904), and the Rutherford model (1911) came the Rutherford–Bohr model or just Bohr model for short (1913). The improvement over the 1911 Rutherford model mainly concerned the new quantum physical interpretation.
7 0
2 years ago
Other questions:
  • What chemical element did hennig brand discover and what was he boiling down when he discovered it
    15·1 answer
  • A system of gas at low density has an initial pressure of 1.90 × 10 5 1.90×105 Pa and occupies a volume of 0.18 m³. The slow add
    7·1 answer
  • How do you write 0.714 in scientific notation
    5·2 answers
  • Name the following compounds:
    14·1 answer
  • In a naturally occurring sample, 19.8% of boron atoms have five neutrons and 80.2% have six neutrons. What is the mass number of
    15·1 answer
  • Which is an example of chemical weathering?
    13·1 answer
  • What is Sublimation?-.-​
    15·1 answer
  • A single gold atom has a mass of 197.0 amu. How many gold atoms are in a cube of gold that is 10.0 mm on each side (about the si
    10·1 answer
  • Encountering problems during separation/purification is a very common issue in organic synthesis, but these steps are crucial to
    8·1 answer
  • True or False When one side of a molecule is electronegative (δ-) and the other side of the
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!