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Which of the following an ionic bond like what holds Na+ and Cl- together in NaCl?
(Hint: Ionic bonds form between metals & non-metals.)
a
The chemical bond that holds H+ and N3- together in NH3
b
The chemical bond that holds Be2+ and Cl- together in BeCl2
c
The chemical bond that holds B3+ and Cl- together in BCl3
d
The chemical bond that holds H+ and Cl- together in HCl
Answer:
Rb
Explanation:
Rb look closely
What is the salt called when it is mixed with water?
Answer:
NaCI (salt) in water
Explanation:
After the salt compounds are pulled away apart the sodium chloride atoms are surrounded by water molecules. Once this happens we know that the salt is dissolved resulting in a homogeneous solution!
HOPE THIS HELPED!
Answer:
NaCI (salt) in water
Explanation:
took the quiz
Based on information from the periodic table, which statement is true for the
element cobalt?
Answer: (A) a cobalt atom contains 27 protons, and most cobalt atoms contain 32 neutrons.
Explanation: just answered the question and that was the correct answer
Answer: The answer is : A cobalt atom contains 27 protons and MOST neutral cobalt atoms contain 32 electrons
Explanation: I took the test
which wavelength of the band on the hydrogen emission line spectrum that has the most energy ? a. 410nm b.434nm c.486nm d.656nm
Answer: 410 nm
Explanation: Energy of a photon is E = hf = hc/λ. The smaller wavelength λ, the greater energy
Why are nonnative species a threat to biodiversity?
A. They often use up resources that other organisms need
B. They are not able to successfully breed in the wild
C. They release pollution into many environments
D. They easily contract and spread diseases to other organisms
Answer:
A. They often use up resources that other organisms need.
Explanation:
Invasive alien species are animals, plants, fungi and microorganisms entered and established in the environment from outside of their natural habitat. T
hey reproduce rapidly, out-compete native species for food, water and space, and are one of the main causes of global biodiversity loss.
Where do climate conditions cause hurricanes to become
larger and more powerful
When the surface water is warm, the storm sucks up heat energy from the water, just like a straw sucks up a liquid. This creates moisture in the air. ... And the warmer the water, the more moisture is in the air. And that could mean bigger and stronger hurricanes.
In some ocean basins, the intensification of hurricanes over time has been linked to rising ocean temperatures. Since 1970, sea surface temperatures worldwide have warmed by about an average of 0.1°C per decade. This warming is especially pronounced in the North Atlantic basin.
Stay seggsy.
can you please help me with this
Explanation:
TUU-PQVH-MFG LINK for them who truely interested in Paranormal and have any doubt on Paranormal
Someone please help me
Answer:
Newton's first law.
Explanation:
It is the same as law of inertia.
Proponer una propuesta de acción contra la degradación del suelo basándose en tres tipos de argumentos de fuentes confiables
Answer:
Cobertura vegetal, mantillo y piedra triturada.
Explicación:
Para evitar la degradación del suelo, debemos plantar una cubierta vegetal perenne que proteja el suelo de la erosión del viento y el agua sujetándolo firmemente con sus raíces. El mantillo también se usa para prevenir la erosión del suelo. En aquellas zonas donde la cobertura vegetal no es posible, tenemos que utilizar piedras trituradas para cubrir el suelo con el fin de evitar el contacto directo con el viento. Entonces, estas acciones pueden prevenir la degradación del suelo y mantener el suelo en su estado original.
What is the solar process that results in the production of energy?
nuclear fission
nuclear fusion
convection
radiation
Answer:
nuclear fusion
Explanation:
mark me brainliest please.
Answer:
B.) Nuclear fusion
Explanation:
Which of the following would you expect to happen to a sample of water with the salt potassium iodide (KI) added to it?
A. Vapor pressure lowering
B. All of these
C. Freezing point elevation
D. Boiling point depression
Answer: d
Explanation:
The correct answer is A: Vapor pressure lowering.
Certain properties in chemistry are called colligative properties. These colligative properties depends on the amount of solute present.
Examples of colligative properties include;
Vapor pressure loweringFreezing point depressionBoiling point elevationOsmotic pressureWhen a solute is introduced into water, the vapour pressure of water is lowered.
Hence, when KI is added to a sample of water, vapor pressure lowering occurs.
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Four satellites are in orbit around the Earth. The heights of their four orbits
are identical. The masses of the four satellites are given in the table. For
which satellite is the gravitational pull of Earth the strongest?
Past due! Help please I choose the middle picture for my hypothesis being inclusive can you help explain why and how it shows it’s being inclusive?
Answer:
Explanation:
its supposed to be not supported not inclusive because you said mix
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The equation below represents the main ingredients a vendor uses to make the double cheeseburgers he sells.
1 bun + 2 hamburger patties + 2 slices of cheese à 1 double cheeseburger
The double cheeseburgers sell for $2 each. The vendor has 1326 buns, 2624 hamburger patties and 2004 slices of cheese. How much money will the vendor make selling the double cheeseburgers
Answer:______ dollars
Answer:
1326
2624÷2=1312
2004÷2=1002
1002*2=$2004
Explanation:
2004 dollars
Answer:
.-.
Explanation:
Students studying solid-state
physics are discussing the
microscopic structure of
materials.
Which student's statement
correctly identifies the nature
of these materials?
Answer:Material X would be classified as a crystalline solid because atoms are in a highly ordered three-dimensional arrangement.
Explanation: it makes sense I'm sorry if its wrong
what do mars, pluto, and Jupiter have in common (science) in 8th grade.
Answer:
they are all planets
Explanation:
Which intermolecular attractive force results in the highest vapor pressure?
es )
A)
hydrogen bonding
B)
interionic force
dipole-dipole atraction
D)
London dispersion force
Answer:
D)
London dispersion force
Explanation:
The relatively weak dipole-dipole forces and London dispersion forces between molecules results in a much higher vapor pressure compared to ethyl alcohol.
What is the correct unit for M1 and M2?
Answer:
M1 and M2 are the masses of two. objects exerting the force on each other, and R is the distance. between their centers.
Explanation:
M1 and M2 are the masses of two. objects exerting the force on each other, and R is the distance. between their centers.
Help ASAP brainly if you get it right for me please …
Answer:
Explanation:
The answer would be d
B. What do you notice about the density of the sinking objects? Dense objects feel very heavy for their size
Answer:
The answer is below
Explanation:
The density of an object is its mass per unit of volume. Dense objects feel very heavy for their size, while for objects with low density they are very light for their size.
Density is the ratio of mass to volume; it is given by:
Density (D) = mass (m) / volume (V)
An object sinks in water if the density of the object is greater than the density of water. While an objects floats on water if the density of the object is les than the density of water
Name of compound 6T ?
Answer:
Explanation:
I serched for it i found name is :sexithiophene
What would be the volume, in liters measured at STP, of 9.75 moles of carbon monoxide?
I
Explain why pentane has a higher boiling point than butane
Answer: Larger molecules have stronger London forces.
Explanation:
Pentane therefore has a stronger force than butane.
What’s a element that is a metal, contains 1 valance electron, 3 energy levels?
Explanation:
Sodium is the element having one valance electron and 3 energy level and is a metal.Its atomic number is 11 .So in first energy level ,there is 2 electrons ,in second energy level,there is 8 electrons and in third energy level,there is one electron.The one electron in the third energy level is called valance electron and it is a metal in the sence it has only one valance electron and it can easily loose it and gain +ve charge.
Low-beam headlights must show objects _______ feet ahead.
Answer:
150 feet
Explanation:
Reaction B: 2 H2O2 (aq) + 2 H20 (L) + O2 (g)
10. Identify the reactants in Reaction B.
11. Identify the products in Reaction B.
12. How many molecules are present on the reactant side of the equation?
13. How many molecules are present on the product side of the equation?
Answer: 10. The reactant in Reaction B is [tex]H_{2}O_{2}[/tex].
11. The products in Reaction B are [tex]H_{2}O[/tex] and [tex]O_{2}[/tex].
12. There are 2 molecules present on the reactant side of the equation.
13. There are 3 molecules present on the product side of the equation.
Explanation:
The given reaction equation is as follows.
[tex]Reaction B: 2H_{2}O_{2}(aq) \rightarrow 2H_{2}O(l) + O_{2}(g)[/tex]
Reactants are the species present on the left side of a chemical equation.
Products are the species present on the right side of a chemical equation.
Therefore, the reactant in Reaction B is [tex]H_{2}O_{2}[/tex]. As 2 is coefficient of [tex]H_{2}O_{2}[/tex] so, 2 molecules are present on the reactant side of the equation.
The the products in Reaction B are [tex]H_{2}O[/tex] and [tex]O_{2}[/tex]. The coefficient of [tex]H_{2}O[/tex] is 2 and coefficient of [tex]O_{2}[/tex] is 1. Hence, there are total (2 + 1) equals to 3 molecules present on the product side of the equation.
Thus, we can conclude that:
The reactant in Reaction B is [tex]H_{2}O_{2}[/tex].
The products in Reaction B are [tex]H_{2}O[/tex] and [tex]O_{2}[/tex].
There are 2 molecules present on the reactant side of the equation.
There are 3 molecules present on the product side of the equation.
A student determines that the theoretical yield of CaCO3 from a precipitation reaction is 21.5 grams. However, this student only recovers 19.9 grams of precipitate through filtration of the solution. What would be this student’s percent yield?
Answer:
Explanation:
jn
The student’s percent yield is 92.55 % where theoretical yield is 21.5 grams.
What is percent yield?Percent yield is defined as the ratio of actual yield to the theoretical yield multiplied by 100. If the actual and theoretical yield are same then the percent yield is 100%.If actual yield is less than the theoretical yield then the percent yield is less than 100%.Reason of this condition arising is the incompletion of reaction or loss of sample during recovery process.
In cases where percent yield is over 100% it indicates that more sample is recovered than the predicted amount.This condition arises when there are other simultaneous reactions taking place leading to the formation of product. It can also arise if there is incomplete removal of impurities from the sample .Percent yield is calculated as per formula, 19.9/21.5×100=92.55%.
Learn more about percent yield,here:
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Help help help I will give brainliest
Answer:
its b alkyne
Explanation:
brinliest po plsss
Answer:
Alkyne so its b
How many grams of sodium chloride could be produced from 41.3 L of chlorine gas?
Answer:
The grams of sodium chloride that will be made is 292.5 g. calculation. 2Na + Cl₂ → 2NaCl. step 1: calculate the moles of Na. moles = mass/molar mass. From periodic table the molar mass of Na = 23 g/mol. moles = 115 g/23 g / mol = 5 moles. Step 2 : use the mole ratio to determine the moles of NaCl. Na:NaCl is 2:2 = 1:1 therefore the moles of NaCl is also = 5 moles.
Explanation:
We know sodium is a very active metal and chlorine is also a very reactive non-metal. Usually, metals like to eliminate electrons and non-metals such as halogens like to accept electrons. Sodium readily eliminate its last shell electrons become Na+ cation and chlorine accepts that electron to form Cl-anion.
Cecilia finds this cell under the microscope:
How does she know it is an animal cell?
A It does not have a cell wall.
B It has a cell membrane.
C It has a nucleus.
D It is round.
Answer:
all of the above options is correct because animal cell have all the mention features.
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