Answer:
they form when continential plates collide.
Polarity is.. 1) When electrons are not shared between atoms in a compound 2) When electrons are shared unevenly among the atoms in a compound 3) when protons are shared evenly among the atoms in a compound 4) When electrons are shared evenly among the atoms in a compound
Answer:
The correct option is 2) When electrons are shared unevenly among the atoms in a compound
Explanation:
Polarity is the property of a molecule in which the atoms share electrons in an uneven way. This is due to differences in the electronegativity of the atoms. The atom with a higher electronegativity will attract with a higher strength the electrons. Thus, a separation of charges is produced: the atom with more electrons has a more negative charge while the atom with fewer electrons has a more positive charge. This charge separation generates a dipolar moment, which means: polarity.
What type of bond will form between potassium and iodine
Answer:
ionic bond
Explanation:
Please help my teacher has like given up
Calculate the molar volume (volume of 1.0 mole) of an ideal gas at 1.0 atm and 25 °C?
Answer:
24.47 L
Explanation:
Using the general gas law equation:
PV = nRT
Where;
P = pressure (atm)
V = volume (L)
n = number of moles (mol)
R = 0.0821 Latm/molK
T = temperature (K)
According to the provided information in this question,
P = 1.0 atm
V = ?
n = 1 mol
T = 25°C = 25 + 273 = 298K
Using PV = nRT
V = nRT ÷ P
V = 1 × 0.0821 × 298 ÷ 1
V = 24.465 ÷ 1
V = 24.465
V = 24.47 L
when a catalyst is added to reactants, the reaction rate may increase or..
A: occur at a lower temperature
B: decrease
C: stay the same
Answer:
a
Explanation:
It increases the reaction rate by lowering the activation energy for a reaction
Cells, chromosomes, Body system, DNA (smallest to largest)
Explanation:
cells, dna, chromosomes, body systems
Warm-Up
As a family eats dinner, they decide to try to classify the matter around them.
Which categories could the family use for classifying matter?
solids, liquids, and gases
elements, compounds, and mixtures
living things and nonliving things
Answer:
well it depends are they carnivors or eating soup or are they sucking on co2
Explanation:
all of them have a good day
Answer: the answer is selecting all three ( solids, liquids, gasses) (elements, compounds, and mixtures) (living things, and nonlinear things)
Explanation: I got it right:)
How many molecules are there in 3.20 grams of NH4SO2?? explain if you can
Answer:
0.0389757845886336
Explanation:
Which of the following best describes the formation of waves?
Question 2 options:
wind transfers energy to the ocean, creating waves
ocean transfers heat energy which creates wind; this in turn, forms waves
ocean and atmosphere transfer energy back and forth
Answer:
The first one
Explanation:
waves are created by friction between wind and water surface
Answer: i think is the first one i don’t rembember
Explanation: trust me
where is Convection When you cook a marshmallow on a metal poker tool over an open flame
Answer:
this is the answer pls give me brainliest
The three ways thermal energy is transferred are;
1) Conduction
2) Convection
3) Radiation
Explanation:
1) The conduction of the heat from the open flame to the marshmallow is through the direct contact of the flame with the marshmallow, such that the flame the region of the combustion reaction, that produces light and heat touches the marshmallow
2) The convection process is the transfer of heat from the rising heated combustion products, as well as the heated air that rises from the flame
3) The radiation heat transfer is the transfer of the heat from the fire to the marshmallows directly by the heat the moves in the form of electromagnetic waves at temperatures above 1000 K, without the need for a medium, such that the marshmallow can be heated by the heat coming from side of the flame.
what is the chemical properties of milk
Answer:
milk sugar, salts, substances with fatlike properties, and gases
How would you describe boiling point?
Answer:
Boiling point, temperature at which the pressure exerted by the surroundings upon a liquid is equaled by the pressure exerted by the vapour of the liquid; under this condition, addition of heat results in the transformation of the liquid into its vapour without raising the temperature. Water at its boiling point.
Explanation:
g00gle worls
How many joules of energy are required to vaporize 250.0g of water at 100 degrees Celsius?
Answer: Q=104525J
Explanation: where Q is the heat energy required to heat a mass, m , though a change in temperature of Δ T and c is the heat capacity of the material (found in books!). Typical units are Q in Joules or J , m in k g and Δ T is in either Kelvin, K , or degrees Celsius o C . The units of c depend on the other units used but J / k g o C is typical.
Due in 5 mins!!!! Pls hurry
Which of the following would be the best example of potential energy?
A racecar moving at 120 miles per hour around a track.
a bullet shot out of a gun
a rollercoaster at the bottom of the first hill
a rubber band stretched to its fullest length right before someone lets it go
Answer:
D because it is in a fixed position
(science)
hurry help!!
A person who is physically addicted to and emotionally dependent on alcohol has the disease called___________.
a. alcoholitis
b. osteoporosis
c. alcoholism
d. Parkinson's
Answer:
C
Explanation:
Alcoholism is the inability to control drinking due to both a physical and emotional dependence on alcohol.
what is enviorement.
Answer:
the natural and man made thing which we can see around us is known as environment. not enviorement.
Answer:
Environment means anything that surrounds us. It can be living (biotic) or non-living (abiotic) things. It includes physical, chemical and other natural forces. ... In the environment there are different interactions between animals, plants, soil, water, and other living and non-living things.
The map shows the average high temperatures in July for two cities in Texas.
balance the equation
H2O +SO3 H2SO4
Answer:
H2O + SO3 → H2SO4
this is the answer for
this question
50 POINTS QUESTION. PLEASE HELP ASAP, CLICK THE LINK BELOW AN IT WILL GIVE THE QUESTION. THANKS :)
Click the links to open the resources below. These resources will help you complete the assignment. Once you have created your file(s) and are ready to upload your assignment, click the Add Files button below and select each file from your desktop or network folder. Upload each file separately.
Answer:
that pdf looks sus
Explanation:
What theory was Huygens writing about?
the particle theory of light
the reflection of light off objects
the way objects refract light
the wave theory of light
Answer:is D.the wave theory of light
Explanation:
cuz i got it wrong :( but the answer is correct :3
Answer:
D) wave theory of light
Explanation:
define friction in your own words
Explain the difference between naming a covalent compound and an ionic compound.
Answer: An ion with fewer electrons than its neutral atom is called a(n) cation. The charge of an ion with more electrons than its neutral atom is. negative.Name an ionic compound by the cation followed by the anion. ... Covalent compounds are formed when two or more nonmetal atoms bond by sharing valence electrons. Valence electrons are the outermost electrons of an atom.
Explanation:
114. The following equation describes the oxidation of ethanol to acetic acid by potassium permanganate!
3C,H,OH + 4KMnO4 → 3HC,H,O2 + 4MnO+4KOH + H2O
5.00 g of ethanol (46.07 g/mol) and an excess of aqueous KMnO4 are reacted, and 5.99 g of HC2H302 (60.05
g/mol) result. What is the percent yield?
Answer:
Explanation:
The following equation describes the oxidation of ethanol to aceticacid by potassium permanganate:
3C2H5OH +4KMnO4-->3HC2H3O2 +4MnO2 + 4KOH + H2O
5.0 g of ethanol and an excess of aqueous KMnO4 arereacted, and 5.9 g HC2H3O2 result.What is the percent yield?
a. 100%
b. 91%
c. 67%
d. 30%
e. 5.9 g HC2H3O2 is impossible since it represcents more than a100% yield.
The percent yield of acetic acid is 91.9%
From the question,
We are to determine the percent yield of the acetic acid
To determine the percent yield of the acetic acid, we will calculate the theoretical yield first.
The balanced chemical equation for the reaction is
3C₂H₅OH + 4KMnO₄ → 3HC₂H₃O₂ + 4MnO₂ + 4KOH + H₂O
This means
3 moles of ethanol reacts with 4 moles of potassium permanganate to produce 3 moles of acetic acid
Now, we will determine the number of moles of ethanol that reacted
From the question
Mass of ethanol that reacted = 5.00 g
Molar mass of ethanol = 46.07 g/mol
Using the formula
[tex]Number\ of\ moles= \frac{Mass}{Molar\ mass}[/tex]
∴ Number of moles of ethanol = [tex]\frac{5.00}{46.07}[/tex]
Number of moles of ethanol that reacted = 0.10853 mole
Now,
From the balanced chemical equation,
3 moles of ethanol reacts with 4 moles of potassium permanganate to produce 3 moles of acetic acid
Then,
0.10853 mole of ethanol reacts with the excess potassium permanganate to produce 0.10853 mole of acetic acid
∴ 0.10853 mole of acetic acid will be produced
Now, for the mass of acetic acid that would be produced
From the formula
Mass = Number of moles × Molar mass
From the question
Molar mass of acetic acid = 60.05 g/mol
∴ Mass of acetic acid that will be produced = 0.10853 × 60.05
Mass of acetic acid that will be produced = 6.5172 g
This is the theoretical yield of acetic acid
Now, for the percent yield
[tex]Percent\ yield = \frac{Actual\ yield}{Theoretical\ yield} \times 100\%[/tex]
From the question,
Actual yield = 5.99 g
∴ [tex]Percent\ yield = \frac{5.99}{6.5172} \times 100\%[/tex]
[tex]Percent\ yield = \frac{599}{6.5172} \%[/tex]
Percent yield = 91.9106 %
Percent yield ≅ 91.9%
Hence, the percent yield of acetic acid is 91.9%
Learn more here: https://brainly.com/question/19655772
hey can someone help me please
Explanation:
A period in a periodic table is a row of chemical elements.A. magnesium (Mg). B.potassium(k). C.iron(Fe). D.copper(Cu)A.C(carbon). B.Cl(chlorine). C.Au(gold). D.Sr(strontium)He(helium 1).Ge(germanium 4). Rb(rubidium 5).I(iodine 5)Sulfur(VIA or6A). Ca(calcium 2A). iodine (VIIA or 7A). Fe(iron VIIIB or 8B)Halogen (chlorine, iodine) . Chalogen(sulfur). AIkali metal(. potassium and. sodium ). Boron(boron). Lanthanide series(Lanthanum). Alkaline earth metal(magnesium and calcium). Transition metal (iron gold). Nobel gas(Helium Argon)What is the speed of a wave with a frequency of 560 Hz and a wavelength of 50 m?
Answer:
v is the wave speed in metres per second, m/s. f is the frequency in hertz, Hz. λ (lambda) is the wavelength in metres
PLS HURRY MY TEST IS TIMED
Question 8(Multiple Choice Worth 5 points)
(08.04 LC)
Investigator Barnes is analyzing materials from an explosive. He finds traces of fertilizer that was used to build the bomb.
identify a possible suspect from the fertilizer?
Run a trace on the chemical marker placed by the manufacturer
Track down where the fertilizer was sold and who bought it
Input the color of the fertilizer into a registry to find the manufacture
Extract DNA from the fertilizer to identify its origin
Answer:
Extract DNA from the fertilizer to identify its origin.
Explanation:
Barnes find out that fertilizer was used in the explosive material. Barnes should now identify the origin of this type of fertilizer so that its root can be determined. When the origin is unable to be determined then Barnes should keep the traces of the fertilizer and try to identify the manufacturer.
Answer:
Track down where the fertilizer was sold and who bought it
Explanation:
I, myself, took this exam.
how many images will be formed when two plane mirrors are inclined at an angle of 45 degree
Answer:
7 Images
Explanation:
n = 360 / a - 1 = 360 / 45 - 1 = 8-1= 7
(Based on multiple reflections)
I hope im right!!
Number of atoms in a 95.0 g sample of a gold nugget
Answer:
2.9 * 10^23 atoms Au
Explanation:
(95 g Au) * (1 mol Au/196.96657) * (6.02 * 10^23 atoms Au / 1 Mol Au)
2.9 * 10^23 atoms Au
What is Hg2Cl2 empirical formula?
Answer:
Mercury chloride's(HgCI2) empirical formula is HgCI.
Explanation:
Do anyone know science??
Answer:
I do not understand.
Explanation:
What do you mean by that?
Yes I know science but why are you asking a question like this?
The offspring of a sexually reproducing organism receives
A.
half of its genetic material from each parent.
B.
an exact copy of each parent's genetic material.
C.
an exact copy of one parent's genetic material.
D.
genetic material that is not related to either parent.
Answer:
It's A because its almost like a personality its just a sexuallity / gender
Answer:
half of its genetic material from each parent.
Explanation: