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Natalka [10]
4 years ago
12

In the reaction 2H2(g) + O2(g) ® 2H2O(g), the volume ratio of H2 to H2O is __________.

Chemistry
1 answer:
Nadusha1986 [10]4 years ago
5 0
2:2 is the answer to your question
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If a piece of marble has the mass of 132.796 g and the volume of 26.9 cm
Mashutka [201]

Answer:

4.94g/cm3.

Explanation:

4.94g/cm3.

8 0
3 years ago
Read 2 more answers
An atom is made of 5 protons, 6 neutrons, and 7 electrons. Another atom is made of 6 protons, 5 neutrons, and 3 electrons. What
koban [17]

Answer:

Explanation: Atoms are the building blocks of all matter. They consist of three sub-atomic particles: protons, neutrons and electrons. Protons and neutrons are found in the nucleus of an atom. Electrons are found in energy levels around the nucleus as shown in the diagram representing a carbon atom with 6 protons, 6 neutrons and 6 electrons.

Sub-atomic particles

Particle  Whereabouts in atom  Relative mass  Charge

Proton  Nucleus  1  +1

Neutron  Nucleus  1  0

Electron  Outside the nucleus  1/1840  -1

Diagram of carbon atom - nucleus with electrons orbiting

Diagram of carbon atom - nucleus with electrons orbiting

In chemistry we are particularly interested in electrons. As you will see later, this is because chemical reactions involve the rearrangement of electrons. Nuclei of atoms (protons and neutrons) usually remain unchanged (except in radioactive decay).

Electrons are arranged in atoms according to their energies. This is called the electronic structure or electronic configuration of the atom. A crude but still useful model says the electrons can be in different energy levels. Electrons in a particular energy level all have the same energy as one another. The lowest energy level can accommodate up to 2 electrons. The second level can accommodate up to 8 electrons. The third level can accommodate up to 18 electrons. The diagram shows the situation for a sulfur atom.

Electronic configuration of sulfur including energy level diagram

6 0
4 years ago
Which is a homogeneous mixture?
Klio2033 [76]
B i think but im not 100 percent sure
7 0
3 years ago
The volume of a gas is directly proportional to its temperature if the pressure of the particles is constant. This is a statemen
Deffense [45]
The gas is disposed proportional to the temperature to pressure of the particles
6 0
4 years ago
Muszę napisać wzór sumatryczny wysyłam załącznik
ioda

Cześć, nie mówię po polsku, więc zrobiłem to w Tłumaczu Google, więc przepraszam, jeśli coś brzmi śmiesznie.

chlor (VII) i tlen - ten wzór to CI_{2} O_{7}, a tlenek chloru jest bezwodnikiem kwasu nadchlorowego.

węgiel i wodór - wzór na węgiel i wodór to CnH2n + 2), jest to związek organiczny, a niższa klasyfikacja jest taka, że jest to również węglowodór aromatyczny.

Mam nadzieję, że to pomoże, błogosławionego i cudownego dnia! :-)

-Cutiepatutie

7 0
4 years ago
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