In diamond, each carbon atom is covalently bonded to four other carbons in a
a. Polyhedron
b. Hexagon
c. Pentagon
d. Tetrahedron
Answers
Answer:
Tetrahedron
Explanation:
Each carbon atom in a diamond is covalently bonded to four other carbons in a tetrahedron. These tetrahedrons together form a three-dimensional network of six-membered carbon rings in the chair conformation, allowing for zero bond-angle strain.
Related Questions
Choose all that are correct about the elements in the column highlighted in blue
in the periodic table below (there are FOUR correct answers)
help !!!
Answers
Answer:
running a business is the best i have ever done to make a good friend of yours to get to the point where you have a lot to say
what everyday things turn green because acid
Answers
Explanation
They are everyday objects that turn green.
Identify and describe the processes that change rock below Earth's surface.
Answers
Answer:
crystallization, metamorphism, and erosion and sedimentation.
~+lil more info+~
The three processes that change one rock to another are crystallization, metamorphism, and erosion and sedimentation. Any rock can transform into any other rock by passing through one or more of these processes. This creates the rock cycle.
Why does soap work to remove oil? (Note that most oils can be considered non-polar. A soap molecule has one end that is polar and one end that is non-polar.)
Answers
Answer:
Soap breaks up the oil into smaller drops, which can mix with the water.
Explanation:
This works because soap is made up of molecules with two different ends.
The soap molecules works as a surfactant for the water oil interphase. The hydrophobic head of the soap molecules trap the oil and dirt ad remove from the surface.
What are surfactants?Surfactants are chemical substances used to reduce the interfacial tension between substance boundary. Soaps and detergents acts as surfactants which are used to remove the dirt and oil from material surface.
Soap has both polar and non-polar characteristics. The alkaline part in the soap causes it to have a polar head, and because of the electric charge on this head, the soap is hydrophilic. A hydrophilic part of soap is drawn to water and will cling to it.
In this instance, the positive-charged hydrogen atoms of the water's hydrogen atoms match with the polar head of the soap molecule. The other part of soap is a fatty acid tail, which is hydrophobic and can bind with the oil and dirt. The trapped oil molecules are then be removed by water.
To find more on surfactants refer here:
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Elements in group 17 want to lose seven valence electrons and elements in group 1 want to gain seven valence electrons to become stable ions.
Answers
Liam observed that the pyrite looks like metal. what property did the student investigate?
Answers
Answer:
The correct answer is - Luster.
Explanation:
Luster is a property that explains how the light is reflected on the surface of a mineral. Luster can be categorized with the help of if an element or mineral is metallic or non-metallic.
Pyrite has a shiny, opaque metallic luster which is similar to other metals. There are different types of luster other than metallic also found like, silky, dusty, pearly, waxy, and a few more.
why is water considered a pure substance?
a. each water molecule is identical
b. water can be broken down by physical means
c. water molecules are made up of different types of atoms
d. water can be combined with other substances by physical means
heLp
Answers
What is the formula for volume of a rectangular solid?
1.)length x width x height
2.) 1/2 length x width x height
3.)1/2 base x height
4.) length x width
Answers
Answer:
1. length x width x height
Answer:
1st.
thats the one for u to choose
HELP IN 8TH GRADE ADV SCIENCE
Answers
Answer:
protons: 36
neutrons: 48
electrons: 36
what happens when a covalent bond vs. an ionic bond is formed?
Answers
Explanation:
Ionic bonds form when a nonmetal and a metal exchange electrons, while covalent bonds form when electrons are shared between two nonmetals. ... A covalent bond involves a pair of electrons being shared between atoms. Atoms form covalent bonds in order to reach a more stable state.
Water is produced from the reaction of hydrogen and oxygen gas, according to the equation below. What is the excess reactant in the reaction of 4.2 moles of hydrogen with 3.0 moles of oxygen?
2H2(g) + O2(g) = 2H2O(L)
Select one:
a. Water
b. Oxygen
c. No excess reactant
d. Hydrogen
Answers
Explanation:
Mole ratio of Oxygen to Hydrogen gas = 1 : 2.
If we use 3.0 moles of oxygen gas, we would need 3.0 * 2 = 6.0 mol of hydrogen gas.
However we only have 4.2 mol of hydrogen. Therefore hydrogen is limiting and oxygen is in excess. (B)
If you start with 3 moles of sodium and 3 moles of chlorine to produce sodium chloride, what is the limiting reagent?(You will need to balance
the equation first.)
Na + Cl2 -> NaCl A. They are equal B. Na C. Cl2 D. NaCl
Answers
Answer:
B. Na
Explanation:
Once balanced you get 2Na + Cl₂ ⇒ 2NaCl. Sodium is the limiting reagent because it would produce the smallest amount of the product (NaCl)–while chlorine is the excess reagent. Based off of the Na in the balanced equation, it would produce 3 moles of NaCl, and for Cl₂ it would produce an excess of 6 moles of NaCl. [It'd be wise to utilize stoichiometric factors to get a good grasp of this]
Which of the following has the highest ionization energy?
a. F or I
b. Fr or C
c. Ne or Bi
d. Kor Kr
e. Ar or Mg
Answers
Answer:
helium
The first ionization energy varies in a predictable way across the periodic table. The ionization energy decreases from top to bottom in groups, and increases from left to right across a period. Thus, helium has the largest first ionization energy, while francium has one of the lowest.
Explanation:
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Describe each of the 3 main
domains used to classify living
things.
Answers
Answer:
Organisms can be classified into one of three domains based on differences in the sequences of nucleotides in the cell's ribosomal RNAs (rRNA), the cell's membrane lipid structure, and its sensitivity to antibiotics. 3. The three domains are the Archaea, the Bacteria, and the Eukarya.
Explanation:
The more variation in a species, the less likely the chance that species has of surviving. true or false
Answers
Answer:
The more variation in a species, the less likely the chance that species has of surviving. false
Explanation:
As species have heritable variation the species produce more offsprings that can survive and offsprings within a favorable variation are more likely to survive and reproduce. Hence favorable variation makes the species diverse and more in population. Thus greater are the chances of survival, a decrease in diversity will lead to a decline in variability, and fewer chances of survival.Is 2AgNO3 + BaCI2 -> 2AgCl + Ba(NO3)2 Balanced or unbalanced. If unbalanced which element cause the unbalance
Answers
Answer:
This is balanced
Explanation:
Both sides contain 2 Ag 2 NO3 1 Ba and 2 Cl.
which is more reactive between magnesium and sulphur?
Answers
Answer:
Sulfur (in British English: sulphur) is a chemical element with the symbol S and atomic number 16. It is abundant, multivalent and nonmetallic. Under normal conditions, sulfur
ill attach a picture
Answers
Answer:
35.50
Explanation:
There are two stable isotopes, 35Cl (75.77%) and 37Cl (24.23%), giving chlorine a standard atomic weight of 35.45
Please help me choose the correct statement
Answers
What is the value for AG at 100 Kif AH = 27 kJ/mol and AS = 0.09 kJ/(mol-K)?
A. AG = 2700 kJ/mol
B. AG = -36 kJ/mol
C. AG = 0 kJ/mol
D. AG = 18 kJ/mol
Answers
Answer:
ΔG = 18KJ/mol
Explanation:
Given data:
ΔS = 0.09 Kj/mol.K
ΔH = 27 KJ/mol
Temperature = 100 K
ΔG = ?
Solution:
Formula:
ΔG = ΔH - TΔS
ΔS = entropy
ΔH = enthalpy
by putting values,
ΔG = 27 KJ/mol - 100K(0.09 Kj/mol.K)
ΔG = 27 KJ/mol - 9 KJ/mol
ΔG = 18KJ/mol
Answer:
ΔG = 18kJ/mol
Explanation:
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If a parent cell has 24 chromosomes , how many chromosomes will each daughter cell have? Then compare the chromosomes in the parent cell and the daughter cells.
Answers
Answer:
If a cell has 24 chromosomes before cell division then daughter cell resulting from mitotic division will have 24 chromosomes while daughter cell resulting from the meiotic division will contain 12 chromosomes each.
Explanation:
A chemical reaction that has the general formula of AB + C → CB + A is best classified as a
synthesis
polymerization
decomposition
oxidation
replacement
reaction.
Answers
Replacement reaction.
Further explanationGiven
A chemical reaction
AB + C → CB + A
Required
reaction type
Solution
There are several types of reactions that can occur
synthesis: 2 elements combine to form a single product
polymerization: monomers combine to produce a polymer
decomposition: One compound breaks down into 2 components
oxidation : a change in oxidation number
replacement can be divided into 2
single replacement if one element replaces the other elements of a compound
double replacement if there is an ion exchange between two ion compounds in the reactant to form two new ion compounds
AB + C → CB + A
If we look at this reaction, element C replaces element A to form a new compound CB. So it is single replacement. But this reaction can also be said to be an oxidation-reduction reaction because there is a change in oxidation number
element A undergoes a reduction reaction
element C undergoes an oxidation reaction
So types of redox reactions can be combination, decomposition, displacement, combustion, and disproportion.
Answer:
oxidation
Explanation:
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How many moles of Gold (Au) are in 3.60x10-5 g?
Choose the correct set up from the given choices.
a. .000360g divided by (196.96g/1 mol)
b. .0000360 g multiply by (1mol/196.96 g)
c. .00360 g divided by (1mol/196.96 g)
d. .0000360 g divided by (1mol/196.96 g)
Answers
Explanation:
[tex](.0000360 gAu} )\frac{1molAu}{196.96gAu}= ? mol Au[/tex]
How to balance:
_N2+__O2+__H2O-> _HNO3
Answers
Answer:
2N2 + 5O2 + 2H2O → 4HNO3
Explanation:
Dinitrogen - N2
N₂ Nitrogen Gas Nitrogen Diazyne
Molar Mass of N2 Bond Polarity of N2
Dioxygen - O2
O₂ Oxygen Molecular Oxygen Diatomic Oxygen Triplet Oxygen Oxygen Gas Liquid Oxygen LOx
Molar Mass of O2 Bond Polarity of O2
Water - H2O
Dihydrogen Monoxide Dihydridooxygen [OH2] HOH Hydrogen Hydroxide Dihydrogen Oxide Oxidane Hydrogen Oxide
Molar Mass of H2O Oxidation State of H2O
Products
Nitric Acid - HNO3
Spirit Of Niter Fuming Nitric Acid Aqua Fortis Engravers Acid Hydrogen Nitrate HONO2 Peroxynitrous Acid [NO(OOH)]
Molar Mass of HNO3 Oxidation State of HNO3
HELP PLEASE ASAP :)
What is the purpose of a salt bridge?
O.
A. To supply energy for the reaction
B. To connect two electrodes
O C. To prevent charge buildup
O D. To dissolve metals into solution
Answers
Answer: B. To connect two electrodes
Explanation:
The salt bridge forms a connecting link between the two electrodes. The function of the salt bridge is not to supply electrons from one electrolyte to another but to maintain a constant balance of charge as the electrons move from one half of the cell to the another. The electrons from from negative electrode to positive electrode that is from anode to cathode.
Answer: C. To prevent charge buildup
Explanation: I just took the quiz.
The measure of the speed of the moving or
vibrating particles is called the
Answers
Answer:
Temperature
Explanation:
It's called temperature.
This is because, in any substance an increase in temperature means that the particles on the average will move with greater speeds, or that they have greater kinetic energy while a decrease in temperature means that the particles on the average will move with lesser speeds, or that they have lesser kinetic energy.
Specifically critique your personal impact on the changing climate.
Answers
Answer:
We can no longer ignore the fact that the world's climate is becoming more unpredictable and more extreme. As water levels rise, the risk of flooding looms large. At the same time, periods of drought are becoming longer and more frequent. Yet, our most precious resource – our planet's biosphere – is not only under threat. It is also the source of many of our solutions. Green Climate Solutions is the Wageningen Environmental Research programme that applies our understanding of nature and natural processes to address the challenges of climate change.
What is the chemical name of the compound K2SO4? Use the list of polyatomic ions and the periodic table to help you answer.
A. Dipotassium sulfate
B. Potassium sulfate
C. Potassium (||) sulfate
D. Potassium sulfide
Answers
Answer:
B. Potassium Sulfate
Explanation:
SO4=sulfate
-2 charge cancels
Answer:
B. Potassium Sulfate
Explanation: for clever users /plato
What is the rise in sea level between 1930 and 2003?
A)
About 20cm
B)
About 16cm
C
About 12cm
Answers
Answer:
about 16
Explanation:
its 20 - ( approximately 5)
= approximately 16
Answer:
It should be (C) about 12cm
_____is the chemical bond formed when two atoms share electrons.
Answers
Answer:
covalent bond
Explanation:
Answer:
The covalent bond is the chemical bond formed when two atoms share electrons.