WHAT IS LIFE? GDE.TO BIOLOGY W/PHYSIO.
5th Edition
ISBN: 9781319272531
Author: PHELAN
Publisher: MAC HIGHER
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Question
Chapter 2, Problem 4MC
Summary Introduction
To analyze:
The number of covalent bonds in oxygen molecule.
Introduction:
The chemical element, oxygen, is represented with the symbol “O” and it has the atomic number 8. The oxygen gas or molecular oxygen is composed of two atoms of oxygen (also called diatomic oxygen) that are held together via a covalent bond.
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Students have asked these similar questions
In H2O how many hydrogen (h) atoms are present
The molecules for fossil fuels like gasoline, diesel, and natural gas are made only
of carbon and hydrogen atoms; for this reason, they are called "hydrocarbons". A
carbon atom can form 4 bonds, hydrogen 1, thus the simplest hydrocarbon is
CH4. It's a gas at room temperature, and it's the fossil fuel called natural gas
when used at home in gas appliances and it's called CNG (compressed natural
gas) when used to power cars and buses. In the image below, what is the
technical name for CH4?
CH4 + 202
CO2
+ 2 H20
Methane
Охудen
Carbon Dioxide
Water
Combustion Reaction
::
The 2-carbon alcohol called ethanol is most common because it's made from
something else very common: sugar! (this is also why ethanol is the one alcohol
that's not toxic, our bodies can metabolize it). Ethanol is mass-produced in
factories on an industrial scale, and is commonly used as a fuel (or mixed as an
additive into other fuels). The combustion reaction below shows that 6 molecules
of oxygen is required to completely burn two molecules of ethanol. How many
molecules of carbon dioxide are produced after burning ethanol?
ethanol + oxygen
carbon dioxide + water
20,H OH + 60,
+ 6H,0
4CO.
2(e)
Chapter 2 Solutions
WHAT IS LIFE? GDE.TO BIOLOGY W/PHYSIO.
Knowledge Booster
Similar questions
- A. The first shell corresponds to the first energy level, and it can hold up to 2 electrons. Hydrogen has one proton, so it has 1 electron and one vacancy. A helium atom has 2 protons, 2 electrons, and no vacancies. B. The second shell corresponds to the second energy level, and it can hold up to 8 electrons. Carbon has 6 electrons, so its first shell is full. Its second shell has 4 electrons and four vacancies. Oxygen has 8 electrons and two vacancies. Neon has 10 electrons and no vacancies. C. The third shell corresponds to the third energy level, and it can hold up to 8 electrons. A sodium atom has 11 electrons, so its first two shells are full; the third shell has one electron. Thus, sodium has seven vacancies. Chlorine has 17 electrons and one vacancy. Argon has 18 electrons and no vacancies. Figure It Out: Which of these models have unpaired electrons in their outer shell?arrow_forwardAnother fossil-fuel gas used in cooking appliances is "propane", used commonly in backyard grills and RV/camping stoves. Propane is a bigger hydrocarbon: 3 carbons single-bonded in a chain, and the remaining bonds are taken by hydrogen. Its formula is C3H8 and its structure is shown below. KEY POINT: the products are the same as the combustion of methane, but more is produced. The graphic below shows that one propane molecule reacts with 5 oxygen molecules to form molecules of carbon dioxide. C3Hg + 502 → 3CO,+ 4H,0 00O 000 SUOLDICIATEFIEETILNED I RLIANMr CASIRICTIOonL Harrow_forwardWhat is the total number of valence electrons in CO 2? 14 16 19 20 24arrow_forward
- Carbon atoms are capable of forming single, double, and triple bonds because carbon is electrons to complete looking for its valence shell. O 6 O 4 O 3 8.arrow_forwardThe electrons are unequally shared in and transferred in Multiple Choice Na CI", H20 CH4. N2 02 CH4 H20. Na Crarrow_forward1)Why the earth only contain the oxygen why not other?arrow_forward
- How many electrons are present in a Phosphorus 2+ atom? Group of answer choices 12 13 19 34arrow_forwardWhich of the following statements regarding hydrogen bonding is false? Hydrogen bonding occurs between the hydrogen o* and lone pair electron o orbitals There is a strong angle dependence of hydrogen bonding, with ideal angle of 180° The donor is a weak base and the acceptor is a weak acid Hydrogen bonding occurs between the hydrogen atom of an electronegative donor and a lone pair of electrons on an acceptor It is one of the most important non-covalent bonds in biochemistryarrow_forwardExplain why two atoms of hydrogen tend to combine into a molecule of hydrogen gas (H2).arrow_forward
- Chemical reactions in our body are generally one of three types, in this type of reaction a molecule is generally broken down and energy is released. anabolic hydrogen catabolic exchangearrow_forwardIdentify all of the elements in the paragraph above. Use your periodic table along with what you learned in live lesson to make your own chart of those elements when they are oxidized..arrow_forwardCH4 is methane. This compound is ________. inorganic organic reactive a crystalarrow_forward
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