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Answer:
Your answer would be B. Have a wonderful day!
Explanation:
Answer:
Answer is B
Explanation:
Describe the relationship between a boiling point and hydrogen bonds in a substance.
Hydrogen bonding between molecules(inter mlecular) is one such attractive force. ... In water because of the hydrogen bonding attraction between molecules greater energy is needed to separate them from against their inter molecular attraction, therefore higher boiling point.
The boiling points of molecules with hydrogen bonds will always be higher than those of molecules of similar size without an -O-H or -N-H group.
What is hydrogen bonding ?
When a hydrogen atom bonded to a strongly electronegative atom is in close proximity to another electronegative atom with a single pair of electrons, the hydrogen bond is an intermolecular force (IMF) that results in a unique type of dipole-dipole attraction. There are forces between molecules called IMFs. Dipole-dipole interactions and dispersion forces are two additional examples. While true covalent and ionic bonds are stronger than hydrogen bonds, dipole-dipole and dispersion forces are generally weaker.An organic molecule with an -OH group is called an alcohol. Hydrogen bonds can occur in any molecule that has a hydrogen atom directly attached to an oxygen or nitrogen. When hydrogen is bonded to fluorine, hydrogen bonds also occur, but other molecules lack the HF group. The molecules become as a result of the hydrogen bonding, requiring more heat (energy) to separate. The boiling point of various molecules, which is the temperature at which a phase change from liquid to gas takes place, can be examined using this phenomenon.The ethanol's hydrogen bonding has raised its boiling point by about 100°C. It is essential to comprehend that van der Waals attractions are not the only forms of hydrogen bonding. For instance, each of the molecules that follow has the same number of electrons, and the two that follow have chain lengths that are comparable. Because of the additional hydrogen bonds, the butan-1-ol has a higher boiling point.To know more about hydrogen bonding check this:
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to make an aqueous solution of 0.223 M magnesium bromide, using a 250 mL volumetric flask. How much solid magnesium bromide should you add?
Answer:
Ok
Explanation:
ASAP MULTIPLE CHOICE WILL MARK BRAINLIEST
Which term is defined as the mass of an atom based on the mass of an atom of carbon-12?
atomic charge
atomic mass
isotope
atomic number
Answer: atomic mass
Explanation: Mass is equal to one twelfth the mass of an atom of carbon-12
Write the products of these double-replacement reaction. Then balance each equation. a) NaOH(aq) + Fe(NO3)3 (aq)---> Iron (III) hydroxide is a precipitate
Answer:
3NaOH (aq) + Fe(NO₃)₃ (aq) → Fe(OH)₃ (s) + 3NaNO₃ (aq)
Explanation:
Step 1: RxN
NaOH (aq) + Fe(NO₃)₃ (aq) → Fe(OH)₃ (s) + NaNO₃ (aq)
Step 2: Balance RxN
We need 3 OH's on both sides.
We also need 3 NO₃'s on both side.
This will make it so we also need 3 Na's on both side3NaOH (aq) + Fe(NO₃)₃ (aq) → Fe(OH)₃ (s) + 3NaNO₃ (aq)
Colby wants to learn more about the feeding habits of ants.
What steps should Colby take to best study the feeding patterns of ants?
a. form a hypothesis, conduct an experiment, record data, make a conclusion
b. conduct an experiment, form a hypothesis, make a conclusion, record data
c. form a hypothesis, record data, conduct an experiment, make a conclusion
d. record data, form a hypothesis, make a conclusion, conduct an experiment
Answer:
a. form a hypothesis, conduct an experiment, record data, make a conclusion
Explanation:
Performing scientific investigations involved following the SCIENTIFIC METHOD, which is a rule or guideline followed in order to discover knowledge about natural phenomena. The scientific method has been divided into steps viz:
- Making observation/asking questions: In this case, the problem is HOW ANTS FEED.
- Formulating hypothesis: The hypothesis is a testable explanation given to solve the asked question.
- Testing hypothesis: The hypothesis must be able to be tested via conducting an experiment.
- Analyze result: The results of the test is recorded and analysed as data.
- Make conclusions: The conclusion either accepts or rejects the hypothesis depending on the result of the experiment.
Therefore, based on this; form a hypothesis, conduct an experiment, record data, make a conclusion are the steps Colby should take to best study the feeding patterns of ants
A new scam on the Internet involves people selling samples of sodium that they collected from a secret river in the mountains. Write a short statement to explain why this is a scam.
Answer:
Explanation:
The reason this is a scam is because they are selling sodium and to sell this product you must have a licence to do so. And secondly, you cant tell the reader that it is from a secret river and sell them a product that reacts when it touches water.
Sodium is a very highly reactive metal that does not occur in free state in nature.
Sodium is a group 1 element. It has a very negative electrode potential which implies that it is highly reactive. Being a highly reactive element, sodium can not occur in free state in nature. It always occurs in combined form as compounds.
Hence, it is impossible to pick up sodium from any secret river in the mountains. Sodium metal is highly reactive hence it has to be stored under paraffin oil. The whole set up is indeed a scam.
Learn more: https://brainly.com/question/2673886
Write the products of these double-replacement reaction. Then balance each equation. Ba(NO3)2 (aq) + H3PO4 (aq) ---> Barium phosphate is a precipitate)
Answer:
Explanation:
Step 1: RxN
Ba(NO₃)₂ (aq) + H₃PO₄ (aq) → Ba₃(PO₄)₂ (s) + HNO₃ (aq)
Step 2: Balance RxN
We need 3 Ba's on both sides.
We need 2 PO₄'s on both sides.
3Ba(NO₃)₂ (aq) + 2H₃PO₄ (aq) → Ba₃(PO₄)₂ (s) + 6HNO₃ (aq)
Never change a subscript to balance an equation
True or False
differentiate homogeneous and heterogeneous mixtures
Answer:
HOMOgeneous = Same/Alike
HETEROgeneous = Diversity/Different
In mixtures:
Homogeneous would be defined as the evenly proportion substance/materials placed throughout the sample, while heterogeneous is the maintain of separate materials/substances throughout the sample.
Some oxides are given below. (i)Na2O (ii)NO2 (iii) CO2 (iv) MgO a) Which are the basic oxides among these? b) What is the name of the aqueous solution of CO2 ?
Basic oxides ⇒ metal(usually alkali/alkaline earth) +O₂
L + O₂ ⇒ L₂O
L + O₂ ⇒ LO
Dissolve in water becomes = basic solution
L₂O+H₂O⇒ 2LOH
LO + H₂O⇒ L(OH)₂
So the basic oxides : Na₂O and MgO
Na₂O + H₂O⇒NaOH
MgO +H₂O⇒Mg(OH)₂
The aqueous solution of CO₂(dissolve in water)
CO₂ + +H₂O⇒ H₂CO₃(carbonic acid)
An amoeba is a one-celled organism. The cell theory states that which of the following characteristics of amoebas must be true?All amoebas have a regular, spherical shape.All amoebas move rapidly using a cilia.All amoebas have organelles called chloroplasts.All amoebas come from other amoebas.
Answer:
I believe the answer is all amoeba come from other amoeba
Is there a common pattern for valence electrons on the periodic table
Answer:
For neutral atoms, the number of valence electrons is equal to the atom's main group number. The main group number for an element can be found from its column on the periodic table. For example, carbon is in group 4 and has 4 valence electrons. Oxygen is in group 6 and has 6 valence electrons.
Explanation:
5. Explain the difference between a molecular
element and a molecular compound.
Answer:
is that in a molecule of an element, all the atoms are the same. For example, in a molecule of water (a compound), there is one oxygen atom and two hydrogen atoms. But in a molecule of oxygen (an element), both of the atoms are oxygen.
Explanation:
Answer:
The only difference between a molecule of a compound and a molecule of an element is that in a molecule of an element all the atoms are the same.
Explanation: A molecule of an element all the atoms are the same.
Where does DNA come from?
Answer:
The DNA can be found in the cell's nucleus and beside the DNA in the nucleus, humans and other complex organisms also have a small amount of DNA in cell structures known as mitochondria.
Explanation:
Hope this helps!
Answer:
In eukaryotic cells, it is in the nucleus. In prokayrotic cells it is in the nuclei. It is made of chromosomes passed down from parents
Explanation:
Hope this helps, good luck!
What compounds would you use for a ceramic baking dish
ASAP MULTIPLE CHOICE WILL MARK BRAINLIEST
An atom of rubidium has 37 protons and 48 neutrons. The atom loses one electron.
What will be the charge on the ion that forms?
36
+1
−36
−1
Answer:
+1
Explanation:
Answer:
-136Step-by-step explanation:
"Loses" means subtraction, decrease, or negative. So, a loss of 1, can also be represented by -1.If protons and electrons can be represented by the same number (37), then a loss of 1 is just, 37 - 1. 37 - 1 = 36.I hope this helps!
What is a common event due to transform plate movement at the San Andreas Fault Zone?
Answer:
Earthquakes
Explanation:
took the test
Answer:
earthquake
Explanation:
me and that other guy took the test
Does a clock have internal organization.
Answer:
yes
Explanation:
Who described the atom as being like plum pudding?
A) Robert Millikan
B) J. J. Thomson
C) Niels Bohr
D) Ernest Rutherford
Answer:
B
Explanation:
J.J. Thomson
The plum pudding model is an early 20th century model of an atom. It was later found to be wrong. It was proposed by J.J. Thomson in 1904, after the electron had been discovered, but before the atomic nucleus was discovered.
Which type of force caused the weight to drop (11) after the rope was cut?
Friction Force
Normal Force
Applied Force
Electrical Force
Gravitational Force
Magnetic Force
Answer:
gravitational force.
Calculate the mass of 0.5 moles of Co2
And 5 moles of h20
Answer:
Mass of 0.5 moles CO2 is 22 and Mass of 5 moles of H2O is 90
Explanation:
Moles = [tex]\frac{GivenMass}{Molecular Mass}[/tex]
so value of moles is given 0.5 for co2 and 5 for h2o and the molecular mass of co2 is 44 and h2o is 18 so we put these values in
Mass = Moles x Molecular Mass
and we get the answer
A balloon has a volume of 6.25 L at 453 kPa. What would the volume of this balloon be at 325 kPa?
Answer:
4.48 L
Explanation:
P1/V1 = P2/V2
453/6.25 = 325/ x
453x = 6.25*325
x = (6.25*325)/453
x = 4.48 L
If an atom is neutrally charged the number of electrons equals
Answer:
The number of protons
Explanation:
Answer:
number of negative electric charger
explanation
(the electrons ) and positive electric charges (the protons). The total electric charge of the atom is therefore zero and the atom is said to be neutral .
Why were Democritus's ideas not science?
Answer:
Im not sure because you might have spelled a word wrong.But i believe because of their certain treaditions,belifs,and ways.
Explanation:
LOOK AT THE IMAGE ABOVE CAN SOMEONE PLEASE DO IT WITH FULL STEPS PLEASE I NEED IT TODAY PLEASE PLEASE I WILL MARK YOU BRAINLIST
answer:
IMAGE IS SUPER UNCLEAR SORRY LUV <3
explanation:
your phone must me from 2009 with that trash camera quality sweetie i suggest you get a new one... oh wait you can't you're broke :(
1) How much heat is needed to
melt 5.40 grams of ice at its
melting point?
answer: heat needed=18,300
expanation
Which of the following is a main group element?
O Ce
O Co
O Cu
OCs
O none of the above
what element is found in group 6 and period 4? Based on its location, is the element more similar to tungsten or to iron?
the asnwer is berlinuim become a power geek like me plz itl help u
In a periodic table, there are seven periods and eighteen groups. The element found in group 6 and period 4 is similar to Tungsten.
Periodic table:The elements are arranged in order of an increasing atomic number. They are placed in the respective groups and periods according to their properties and atomic number.
The element belonging to group 6 and fourth period is Chromium and this element is similar to Tungsten as they both belong to same group.
The elements belonging to same groups are chemically similar. Thus, the answer is Tungsten (W).
Find more information about Periodic table here:
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What will most likely happen in the absence of a nucleus?
Answer:
Nucleus is the brain of the cell and controls most of its functions. Thus without a nucleus, an animal cell or eukaryotic cell will die.
Answer:
A. genetic information will not be transmitted by the cell
Explanation: