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
Roman55 [17]
3 years ago
7

Examples of elements​

Chemistry
1 answer:
DedPeter [7]3 years ago
5 0
Oxygen, carbon, hydrogen, nitrogen, aluminum
You might be interested in
__C2H4+__O2-->__CO2+__H2O
mihalych1998 [28]

Answer:

Here is your answer mate :D

3 0
3 years ago
. an ionic compound is composed of 34.95 g of iron and 15.05 g of oxygen. find the empirical formula of this compound.
Contact [7]

Empirical formula of ionic compound is FeO. In which the composition of atoms is 1 : 1.

Empirical formula of an ionic compound is defined as the formula which gives whole number ratio of atoms of various elements present in molecule of compund.

mass of iron in compound = 34.95 g

molar mass of iron = 55.8 g

mass of oxygen in compound = 15.05 g

molar mass of oxygen = 32 g

number of moles of iron present in the compound are ratio of mass of iron in compound/ molar mass of iron

number of moles of iron in compound= 34.95 / 55.8 = 0.6263 ~ 1

number of moles oxygen in compound= 15.05/ 32 = 0.473 ~ 0.5

the ratio of the number of oxygen atoms to number of iron atoms present in one formula unit of iron compund is 2×0.5 / 1 = 1 : 1

Hence , the required empirical formula of iron compound is FeO.

To learn more about Emiprical formula, refer:

brainly.com/question/1439914

#SPJ4

3 0
1 year ago
Can we all agree chemistry is hard lol
Dmitry_Shevchenko [17]

Yes, I agree.

Chemistry can be difficult.

5 0
3 years ago
BRAINLIEST IF CORRECT
Tpy6a [65]

Answer:

Explanation:

He should use these for airborne sounds

MDF Fiberboard.

Gypsum Board.

Plasterboard.

Mineral Wool.

He should avoid using

6 0
2 years ago
Some compounds are described as binary compounds what does this mean
zubka84 [21]

Answer:

It means these compounds are only made up of two elements.

Explanation:

Binary compounds:

The compounds which are made up of the atoms of only two elements are called binary compounds.

For example:

The following compounds are binary:

HCl

H₂O

NH₃

HCl is binary because it is composed of only hydrogen and chlorine. Ammonia is also binary compound because it is made up of only two elements nitrogen and hydrogen.

water is also binary because it is also made up of only two elements hydrogen and oxygen.

While all polyatomic compounds are not binary. for example,

H₂SO₄

It is made up of hydrogen, sulfur and oxygen. There are three elements are present in this compound. So, it is not binary compound.

4 0
3 years ago
Other questions:
  • Ethene will not typically react with hydrogen gas through simple bimolecular collisions. Using the picture, explain how this rea
    10·1 answer
  • As more bulbs are connected in series in a circuit, what happens to the brightness with which each glows?
    9·2 answers
  • Dolomite, [CaMg(CO3)2] is found in a soil sample. A geochemist titrates 24.65 g of soil with 57.85 mL of 0.3315M HCl. What is th
    13·1 answer
  • How does the study of cosmology relate to astronomy
    15·1 answer
  • What is the biggest source of vitamin D
    7·2 answers
  • What effect does shape and size have on an object's density?
    13·1 answer
  • Pumice is a type of rock formed when gas bubbles are trapped inside of cooling lava. Pumice is most often formed when volcanoes
    6·1 answer
  • Vincent graduated from college with a degree in horticulture and now owns a local plant nursery. He maintains a blog titled, "Ho
    9·2 answers
  • Jonathan used the following soil triangle to identify a sample of soil as sandy clay. Which description of soil likely allowed J
    5·1 answer
  • What is the name for this molecule? a skeletal model of an 8-carbon zig zag chain. there is a double bond between the first and
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!