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
Talja [164]
3 years ago
15

Write the empirical formulas of the following compounds: (a) Al2Br6, (b) Na2S2O4, (c) N2O5, (d) K2Cr2O7, (e)H2C2O4.

Chemistry
1 answer:
babunello [35]3 years ago
4 0

Answer:1. AlBr_3

2. NaSO_2

3.N_2O_5

4. K_2Cr_2O_7

5. HCO_2

Explanation:

Molecular formula is the chemical formula which depicts the actual number of atoms of each element present in the compound.  

Empirical formula is the simplest chemical formula which depicts the whole number of atoms of each element present in the compound.

1. Al_2Br_6 has empirical formula of AlBr_3

2. Na_2S_2O_4 has empirical formula of NaSO_2

3.N_2O_5 has empirical formula of N_2O_5  

4. K_2Cr_2O_7 has empirical formula of K_2Cr_2O_7

5. H_2C_2O_4 has empirical formula of HCO_2  

You might be interested in
Answer all questions pls
tekilochka [14]

Answer:

1) The cryosphere contains the frozen parts of the planet. This sphere helps maintain Earth's climate by reflecting incoming solar radiation back into space. As the world warms due to increasing greenhouse gases being added to the atmosphere by humans, the snow and ice are melting.

2) Organisms like the Frilled Shark, Giant Spider Crab. Atlantic Wolffish Pair, Fangtooth Fish, Six-Gill Shark, Giant Tube Worms, Vampire Squid, Pacific Viperfish. But there are most likely archaeabacteria which are prokaryotic bacteria or single-celled organisms. A Prokaryotic cell does not contain a nucleus. It only contains one chromosome and is a single-celled organism. It was the only form of life on earth for millions of years. Examples of a Prokaryotic cell are the different types of bacteria present today.

3) Many different types of plant and animal communities call estuaries home because their waters are typically brackish — a mixture of fresh water draining from the land and salty seawater. This unique combination of salty and fresh water creates a variety of habitats. Estuaries are full of decaying plants and animals. This makes the soil of estuaries rich in nutrients. Because the soil is so rich, lots of different plants grow in estuaries. The plants attract lots of different animals to the estuary and those animals attract other animals to the estuary.

4) Temperature, humidity, precipitation, air pressure, wind speed, and wind direction are key observations of the atmosphere that help forecasters predict the weather. These same factors have been used since the first weather observations were recorded. Observational data collected by doppler radar, radiosondes, weather satellites, buoys and other instruments are fed into computerized NWS numerical forecast models. The models use equations, along with new and past weather data, to provide forecast guidance to our meteorologists. The three main factors of weather are light (solar radiation), water (moisture) and temperature.

Explanation:

U dont have to copy and paste this put these are some ideas to use for ur answers

6 0
2 years ago
How are all atoms of silver alike, but different from atoms of other elements?
andriy [413]

B. All atoms of silver have the same atomic number but different numbers of neutrons in the nucleus.

7 0
2 years ago
When electrons move closer to a more electronegative atom, what happens? the more electronegative atom is _____?
larisa86 [58]
<span>When an electron, which is negatively charged, moves towards an electronegative atom, the electronegative atom pulls in the electron. This causes the electronegative atom to be reduced. This entire process also releases energy.</span>
5 0
3 years ago
A proton is also known as this symbol, _____ ion.
mr Goodwill [35]
Hydrogen ion, strictly, the nucleus of a hydrogen atom separated from its accompanying electron. The hydrogen nucleus is made up of a particle carrying a unit positive electric charge, called a proton. The isolated hydrogen ion, represented by the symbol H+, is therefore customarily used to represent a proton.
4 0
3 years ago
Which property determines an atom's ability to attract electrons shared in a chemical bond?
marta [7]
The property that determines an atom;s ability to attract electrons shared in a chemical bond is electronegativity. The correct answer is C.
6 0
3 years ago
Read 2 more answers
Other questions:
  • How could gamma rays,for example change something irreversibly
    5·2 answers
  • Sodium, an alkali metal, and chlorine, a halogen, are both in Period 3 of the periodic table. Which element has
    10·1 answer
  • The iupac name this compound​
    12·2 answers
  • FILL IN THE BLANKWORD BANK (can use more than once): less, increases, decreases, greaterNO2Cl(g)+NO(g)⇌NOCl(g)+NO2(g)1.Disturbin
    10·1 answer
  • If you were to measure the mass of magnesium and hydrochloric acid before combining them in the test tube, how would that mass c
    9·2 answers
  • An isotope of the element fluorine has 9 protons and 10 neutrons. What is the name of this isotope?fluorine
    5·2 answers
  • Show how acid and base give below dissociates in water <br>HNO3​
    13·1 answer
  • Based on the name, which substance is a covalent compound?
    5·2 answers
  • Which of the following chemical reactions is the only reaction shown that would be predicted to occur based on the activity seri
    7·1 answer
  • Someone please help me, the picture is shown above !
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!