Answer:
65000 > 110 > 0.033 > 0.0000090 > 0.0000082.
Explanation:
Hello there!
In this case, since those numbers are given in scientific notation, it turns out relevant to express them in standard notation as shown below:
0.0000082
65000
110
0.033
0.0000090
Thus, by arranging them from greatest to least, we obtain:
65000 > 110 > 0.033 > 0.0000090 > 0.0000082
Best regards!
I need 11 12. 13. 14. 15. And 16 please and thank you ❤
Answer:
11.) Radio
12.) Microwave
13.) Infrared
14.) Ultraviolet
15.) X-Ray
16.) Gamma Ray
Radio waves have the longest wavelength, and gamma rays have the shortest wavelength.
Body Color is a ___________
Variation
Trait
Feature
Observation
14) Propane, C3H8, is a hydrocarbon that is commonly used as fuel for cooking.
a) Write a balanced equation for the complete combustion of propane gas, which yields CO2(g) and
H2O(l).
b) If 10.0 g of propane undergo combustion, how many moles of oxygen will be consumed?
c) Assuming that air is 21.0 percent O2 by volume, calculate the volume of air needed to completely
combust 10.0 g of propane at 30oC and 1 atm
d) If the combustion of propane produces 2220 kJ/mole, how much energy is produced when 30.0 g
of propane undergoes complete combustion?
e) If the process described in d) above occurs in a calorimeter containing 8.25 kg of water, calculate
the change in temperature of the water that would be observed.
Weathering, erosion, and deposition by water, wind, and ice are interactions between
which two of Earth's systems?
Explain the difference between endothermic and exothermic processes. Provide an example of each.
These are reactions that transfer energy to the surroundings (ie the energy exits from the reaction, hence the name exothermic). The energy is usually transferred as heat energy, causing the reaction mixture and its surroundings to become hotter. A thermometer is used to detect the temperature increase.
Examples:
Combustion
Neutralisation between acids and alkali
Endothermic reactionsThese are reactions that take in energy from the surroundings (ie energy enters the reaction, which will help you to remember the name endothermic). The energy is usually transferred as heat energy, causing the reaction mixture and its surroundings to become colder. A thermometer is used to detect the temperature decrease.
Example:
Electrolysis
How many atoms of oxygen are on the reactants side of this balanced equation?
2AgNO3 (aq)+ Cu(s) —Cu(NO3)2 (aq)+ 2Ag(s)
12
2
3
6
6
General Formulas and Concepts:Math
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightChemistry
Stoichiometry
Analyzing Reactions RxNExplanation:Step 1: Define
[RxN - Balanced] 2AgNO₃ (aq) + Cu (s) → Cu(NO₃)₂ (aq) + 2Ag (s)
Step 2: Identify
Reactants: 2AgNO₃ (aq) + Cu (s)
# of O atoms: 2(O₃) = 6 O
Which of these pairs of elements have the same number of valence electrons?
I have these orgo problems for homework and I have no idea where to even begin. We have to find missing reagents and products based on regioselectivity and stereoselectivity. Any help or explanations would be greatly appreciated!!
Answer:
Honestly makes no sense sorry :(
Explanation:
I can try though.. There are three types of selectivity possible for any synthesis: (i) Chemoselectivity is deciding which group reacts. (ii) Regioselectivity is where the reaction takes place in that group. (iii) Stereoselectivity is how the group reacts with respect to the stereochemistry of the product.
A stereospecific mechanism specifies the stereochemical outcome of a given reactant, whereas a stereoselective reaction selects products from those made available by the same, non-specific mechanism acting on a given reactant. Of stereoisomeric reactants, each behaves in its own specific way.
I tried to explain it the best I could.
Hopefully this helps you :)
Feel free to correct me If it was wrong
What is the density of a brick with a mass of 150gm and the sides are 2cm long 5cm high and
5cm wide?
Is salt water considered a mixture or a solution?
Answer: Salt water is a solution because it has these two characteristics: it has the same concentration of each of its parts throughout the solution, and it can be separated by some physical process.
Explanation: Literally learning about this in my science class XD
A 57 g g sample of iron reacts with 24 g g of oxygen to form how many grams of iron oxide?
A 57 grams sample of iron reacts with 24 grams of oxygen to form 81 grams of iron oxide.
What is iron oxide?
Iron oxide is a chemical compound that is made by the addition of iron and oxygen can also be known as ferrous oxide if react with two oxygen molecules then ferric oxide.
In the sample, the iron is 57 grams and the oxygen is 24 grams,
Fe + O -------------> FeO
Iron oxygen iron oxide
By adding the mass of iron and oxygen,
57 + 24 = 81 grams of iron oxide.
Therefore, the mass of iron oxide is 81 grams if 57 grams sample of iron reacts with 24 grams of oxygen.
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Calculate the volume of 2.408x1024 molecules of water vapor at STP.
89.00 L
90.00L
89.61 L
89.60 L
Answer:
B
Explanation: im not rlly sure you can go with what i said or you dont
A hot air ballon will rise in air because:
Answer: C
Explanation:
Hot air is a lot less dense for a few reasons. Hot air essentially means the particles have more kinetic energy, and move around a lot more. Cold air is dense because the particles move a lot less, have less energy, and are closer together.
Answer:
A
Explanation:
Since the balloon itself is heavier than air, it must be filled with a large volume of something much lighter—either hot air or a very light gas, such as helium. Because the combined weight of the balloon and the gas is less than the weight of an equal volume of surrounding air, the balloon rises.
how does bases taste?
Answer:
bases taste bitter, feel slippery, and conduct electricity when dissolved in water
Explanation:
Answer:
like peas
Explanation:
The absolute temperature of a gas is increased four times while maintaining a constant volume. What happens to the
pressure of the gas?
O It decreases by a factor of four.
O It increases by a factor of four.
O It decreases by a factor of eight.
O It increases by a factor of eight.
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What is the molecular polarity of calcium hydroxide
Answer:Calcium hydroxide is a polar compound. 2. Carbonates are insoluble in water unless it is combined with NH4+ or any group 1A ion. It is a colorless crystal or white powder and is produced when quicklime (calcium oxide) is mixed, or slaked with water.Ca(OH)2 is an ionic compound, in which Ca is the cation and OH is the anion. Ca (calcium) has a charge of 2+, since it is in group 2 on the periodic table.
Explanation: hope this helps and have a great night
Most of Earth's major earthquakes are caused by
x
seasonal heating and cooling of Earth's surface
B
x
weathering of rock at Earth's surface
C
x
earth's gravitational attraction to the Moon
D
x
faulting of rock in earth's crust
Answer:
d
When the stress on the edge overcomes the friction, there is an earthquake that releases energy in waves that travel through the earth's crust and cause the shaking that we feel.
Balance the following equation. ___MgCI2+ ___ AgNO3-->___Mg(NO3)2
Answer:
MgCI2+ ___ AgNO3-->___Mg(NO3)2
i think u put 2 before NO3
Explanation:
As you are standing on the beach, the waves appear to be coming towards you. What is actually moving forward and why? A Water is moving towards you replacing the old water because of the winds B Water is moving towards you replacing the old water because of currents C Energy created by currents is moving towards you, and not the water itself. D Energy created by the wind is moving towards you, and not the water itself.
Answer:
B
Explanation:
Because unless you are walking towards it and the ocean is not moving then only you are moving
lobal wind patterns have less to do with air temperature than local winds. A True B False
Answer:
False
Explanation:
Depends mostly on heating of the earths surface being uneven
It is false that global wind patterns have less to do with air temperature than local winds.
What is global wind?Local winds are those that blow over a small area. Local geography, such as proximity to an ocean, has an impact on them.
Monsoons and land and sea breezes are among them. Global winds occur in belts all over the world.
Temperature differences, particularly the difference in heating at the equator and poles, and the Earth's rotation determine the global atmospheric circulation pattern.
By transporting heat and water, winds shape regional climate and influence daily weather.
Global winds are winds that occur in belts that circle the globe. Global winds, like local winds, are caused by uneven heating of the atmosphere.
Because of the Coriolis effect, winds blow diagonally across the surface.
Thus, the given statement is false.
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Experimental value of acceleration due to gravity is found to be
9.842 m/s2. The accepted value of acceleration due to
gravity is 9.81 m/s2. What is the percent error in calculation?
Answer:
0.33%
Explanation:
From the question given above, the following data were obtained:
Experimental value = 9.842 m/s²
Accepted value = 9.81 m/s²
Percentage error =?
The percentage error in the calculation can be obtained as follow:
Percentage error = |Experimental – Accepted| / Accepted value × 100
Percentage error = |9.842 – 9.81| / 9.81 × 100
Percentage error = 0.032 / 9.81 × 100
Percentage error = 0.33%
Therefore, the error in the calculation is 0.33%
What is the Noble gas electron configuration of lead (Pb)?
Which fuel does not produce air pollution when it burns
Answer:
Natural gas
Explanation:
Natural gas is pretty clean when it burns compared to other gases.
Pls help I’ll mark brainliest pls pls pls
Answer:
the tea was not hot sugar dissolves quickly and hot water than cold
Which one of the following ionic solids would have the largest lattice energy?
CaBr2
CsI
CaCl2
NaCl
NaF
Answer:
CaCl2
Explanation:
The ionic solid CaCl₂ would have the largest lattice energy. Therefore, option (c) is correct.
What is the lattice energy?Lattice energy is the heat of formation when one mole of crystalline ionic solid is generated from its constituent ions in their gaseous state.
For example, the lattice energy of sodium chloride crystal is the energy change of reaction when Na⁺ and Cl⁻ ions react to produce a NaCl crystal, which is equal to -786 kJ/mol.
The relation between lattice energy and lattice enthalpy at constant pressure is given by:
ΔU (lattice) = ΔH (lattice) - PΔV
Lattice energy is directly proportional to the charge on ions and inversely proportional to the interionic distance between ions.
For NaCl and NaF the charge on the ions is +1 and -1 while the size of the ions is small. So they have less lattice energy.
CsI ionic solid have a larger size of ions Cs⁺ and I⁻. So CsI will have less lattice energy. CsBr₂ has +2 charge on calcium but the size of both ios is larger. So, CsBr₂ will have less lattice energy.
CaCl₂ has + 2 charge on calcium as well as the ionic radius is also samll. Therefore, CaCl₂ would have the largest lattice energy.
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Help!!
Which set of Earth components is arranged in order from solid to liquid to gas?
hydrosphere, atmosphere, lithosphere
hydrosphere, lithosphere, atmosphere
lithosphere, atmosphere, hydrosphere
lithosphere, hydrosphere, atmosphere
Answer:
Lithosphere, Hydrosphere, atmosphere
The set of Earth components that is arranged in order from solid to liquid to gas is D. lithosphere, hydrosphere, atmosphere
Lithosphere refers to the solid, outer part of the Earth. It is also known as the Rocky part of the Earth. It consists of the top part of the upper mantle and the brittle crust.Hydrosphere simply refers to the water on the Earth, underground and those that are in the air. This can be seen in ocean, seas, rivers, etc.Atmosphere refers to the layers of gases that can be found on Earth.ut contains gases like nitrogen, oxygen, etc.Read related link on:
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1.24 mole of Cl2= ?molecules
1.24 mol Cl2 x 6.022*10^23
= 7.47 Cl2 molecules
Hope that helps!
Answer:
1 mole of c12=6.022×10^23
so
1.24 mole of c12=1.24×10^23
Explanation:
according to the mole concept
no of mole is very important
if u have that given its very easy to do the solving
if not given go for the no of mole in mole concept for first
and always remember the constant (6.022×10^23) and formulae
An object has a mass of 15.2 g and a volume of 8.9 mL.
What is the density of the object?
Answer:
recordando también que ** 1mL = 1cm ^ 3 **
(como ** 1 dm ^ 3 = 1 L **)
An artificial reef is intended to affect the ocean ecosystem by — А A removing pollution from the water B В providing shelter for marine organisms causing sediment to erode into deeper waters D preventing people from overfishing along the shore
Answer:
B
Explanation:
just answered
An artificial reef is intended to affect the ocean ecosystem by providing shelter and habitat for marine organisms causing sediment to erode into deeper waters. Hence, option C is correct.
What is artificial reef ?An artificial reef is a human-made underwater structure, typically constructed with the purpose of enhancing marine biodiversity, providing habitat for marine organisms, and promoting recreational activities like fishing, diving, and snorkeling.
Artificial reefs can be created from a variety of materials, such as concrete, metal, tires, and sunken ships. The reef structure can also increase the overall biodiversity of an area by creating a new habitat for species that may not have been present before.
Additionally, the presence of an artificial reef can help to reduce pressure on natural reefs by providing an alternative location for fishing and other activities. However, artificial reefs are not typically used as a means of removing pollution from the water or preventing erosion.
Therefore, option C is correct.
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Balance each of the following equations by placing coefficients in front of the formulas as needed MgO(s) Mg(s) + 02(8) ZnCI.(ag)
Is the equation wrong. Such a equation cannot be formed. pls enter the write equation i will help you