![subject](/tpl/images/cats/himiya.png)
Coal consists of nearly pure carbon, an element. When coal burns in air, it combines with the element oxygen from the air. Which of the following best describes
the product of burning coal?
A. water, a heterogeneous mixture of atoms of hydrogen and oxygen
B. carbon dioxide, a heterogeneous mixture of atoms of carbon and oxygen
C. carbon dioxide, a homogeneous mixture of atoms of carbon gas and oxygen gas
D. carbon dioxide, a compound of atoms of carbon and oxygen
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 21.06.2019 14:30
Which statement about sound is not true? a. air particles travel with sound waves. b. sound waves cannot travel through a vacuum. c. sound waves exist even if no one hears them. d. air particles vibrate along the path of a sound wave.
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 21.06.2019 18:40
What kind of ion is contained in salts that produce an acidic solution? a positive ion that attracts a proton from water a positive ion that releases a proton to water a negative ion that attracts a proton from water a negative ion that releases a proton to water
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 21.06.2019 22:30
Naoki's bicycle has a mass of 10 kg. if naoki sits on her bicycle and starts pedaling with a force of 168 n, causing an acceleration of 2.8 m/s2, what is naoki's mass?
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 03:00
Which best describes how johannes kepler developed his laws of planetary motion
Answers: 3
You know the right answer?
Coal consists of nearly pure carbon, an element. When coal burns in air, it combines with the elemen...
Questions
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 09.08.2021 14:00
![question](/tpl/images/cats/biologiya.png)
Biology, 09.08.2021 14:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 09.08.2021 14:00
![question](/tpl/images/cats/fizika.png)
Physics, 09.08.2021 14:00
![question](/tpl/images/cats/mat.png)
Mathematics, 09.08.2021 14:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/User.png)
SAT, 09.08.2021 14:00
![question](/tpl/images/cats/mat.png)
Mathematics, 09.08.2021 14:00
![question](/tpl/images/cats/en.png)
English, 09.08.2021 14:00
![question](/tpl/images/cats/istoriya.png)
History, 09.08.2021 14:00
![question](/tpl/images/cats/himiya.png)
Chemistry, 09.08.2021 14:00
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 09.08.2021 14:00
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/fizika.png)
Physics, 09.08.2021 14:00
![question](/tpl/images/cats/mat.png)
Mathematics, 09.08.2021 14:00
![question](/tpl/images/cats/istoriya.png)
History, 09.08.2021 14:00
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 09.08.2021 14:00