Answer:
down below
Explanation:
The police's influence can happen based on a response to a problem. An example is when the police are called because of a thief child. If the police handles the situation correctly-using reasonable force, if necessary, and reading them their rights- the public will perceive the police in a good light or way. If the police use gross misconduct and do not go by the book, then they will be perceived as an enemy or in a bad light or way.
Determine the number of protons, neutrons, and electrons present in each of the atoms.
53 Cr
protons:
neutrons:
electrons:
Answer:
protons: 24
neutrons: 29
electrons: 24
Explanation:
A certain chemical reaction releases 27.4 kJ/g of heat for each gram of reactant consumed. How can you calculate what mass of reactant will produce 880. J of
heat?
Set the math up. But don't do any of it. Just leave your answer as amath expression.
A chemical reaction of exothermic kind releases energy in the form of heat and light.
We are given that reactant releases 27.4kJ/g for every gram of reactant consumed.
We are required to find number of grams of reactant that has been consumed
It is also given that 880J of energy is released
Hence, grams of reactants consumed is 880/27.4gm
Disclaimer:
It has been asked by the student to leave the question as mathematical expression.
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How do you draw this bond-line structure?
explain how the line spectrum of hydrogen atom in Lyman series is formed
Line spectrum of hydrogen atom in Lyman series is formed 'absorbs energy and gets excited'
The electron in a hydrogen atom absorbs energy and gets excited and the electron jumps from a lower energy level to a higher energy level and when it comes back to its original state, it gives out energy which forms a hydrogen spectrum and the line in Lyman series is formed by electronic transition and all the wavelengths in the Lyman series are in the ultraviolet band and this are seen in ultraviolet emission lines of the hydrogen atom as an electron goes from n ≥ 2 to n = 1 where n is the principal quantum number and the lowest energy level of the electron.
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A typical aspirin tablet contains 321 mg of the active ingredient acetylsalicylic acid. convert to grams
A typical aspirin tablet contains 321 mg of the active ingredient acetylsalicylic acid and 321 mg makes 0.321 g.
Define Aspirin.The nonsteroidal anti-inflammatory medicine (NSAID) aspirin, often referred to as acetylsalicylic acid (ASA), is used to treat a variety of inflammatory disorders by lowering pain, fever, and/or inflammation. These conditions include Kawasaki disease, pericarditis, and rheumatic fever.
Long-term usage of aspirin is also used to help those at high risk avoid further heart attacks, ischemic strokes, and blood clots. Effects of pain or fever often start within 30 minutes. Aspirin functions similarly to other NSAIDs but also inhibits platelet function.
What risks does aspirin pose?Your doctor should be consulted when deciding whether or not to take aspirin because it depends on your cardiovascular risk, according to Wong. While aspirin is often taken safely by many people, it can also result in life-threatening stomach, intestinal, and brain bleeding.
convert mg to gram1 mg = 1/1000 g
so,
321 mg = 321/ 1000g
= 0.321g
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A solid object has a mass of 1.62 lb and a volume of 190 mL.
Express your answer using two significant figures.
The density of a solid object that has a mass of 1.62 lb and a volume of 190 mL is 3.87g/mL.
How to calculate density?Density is the measure of the mass of matter contained by a unit volume. It can be calculated by dividing the mass of the substance by its volume.
According to this question, a solid object is said to have a mass of 1.62 lb and a volume of 190 mL.
1 pound = 453.592 grams
1.62 Ibs is equivalent to 734.82 grams
Density of the solid object = 734.82 grams ÷ 190 mL
Density = 3.87g/mL
Therefore, the density of a solid object that has a mass of 1.62 lb and a volume of 190 mL is 3.87g/mL.
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What is the name and function of this laboratory glassware
Answer: Protects your eyes from chemical splashes, Must be worn during all labs, from start to lab checkout, in which chemicals, glass or heating of substances is involved. No exceptions!!
Zootopia movie: Why is Judy Hopps placement at the police academy so unusual?
Answer:
down below
Explanation:
Judy Hopps was one of the smaller prey animal while the others were predators or bigger prey animals. Meaning, she was tiny and in some minds, was easier to take down or may not be able to do the job as well as the bigger animals. Also, she was, less noticeably, the only female prey animal.
why is the potassium atom larger than the kypton atom
A chemist records the amount of liquid dispensed by a machine and obtains the following values: 283.2 mL, 284.1 mL, 283.9 mL, 284.0 mL, 284.1 mL. The machine is supposed to dispense 296 mL of liquid. Which of the following describes the accuracy and precision of the machine?
precise but not accurate
accurate but not precise
neither accurate nor precise
accurate and precise
The machine is accurate and precise
Hence , option D is correct one .
Accuracy is the capacity of an instrument to measure the precise value. In other words, it refers to how closely the measured value resembles a reference or genuine value. Small readings can be taken to increase accuracy. The calculation's inaccuracy is decreased by the little reading.
The precision of a substance is defined as the degree to which two or more measurements agree with one another. It is incredibly precise but not always accurate to measure something if you weigh it five times and get 3.2 kg each time. Accuracy is not necessary for precision.
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Maalox is the trade name for an antacid and antigas medication used for relief of heartburn, bloating, and acid indigestion. Each 4−mL portion of Maalox contains 320 mg of aluminum hydroxide, 320 mg of magnesium hydroxide, and 32 mg of simethicone. If the recommended dose is two teaspoons four times a day, how many grams of each substance would an individual take in a 12−hour period. (1 teaspoon = 5 mL.)
Maalox is the trade name for an antacid and antigas medication used for relief of heartburn, bloating, and acid indigestion in which
4 ml contains
= 320mg of aluminum hydroxide
= 320mg of magnesium hydroxide
= 32mg of simethicone
recommended doses = 4 times * 2 tea spoon = 8 tea spoon/ day
given = 1 tea spoon = 5 ml
8 tea spoon = 40 ml
hence,
amount of aluminum hydroxide = 320/4 * 40 = 3200mg = 3.2 g
amount of magnesium hydroxide = 320/4 * 40 = 3.2 g
amount of simethicone = 32/4 * 40 = 320 mg = 0.32g
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The partial electron configuration of an atom with 11 electrons is shown.
1s²2s²2p6x
Which of the following does X represent?
A. 3s¹
B. 2d¹
C. 3p¹
D. 4s¹
Answer:
This would be 3S^1.
Explanation:
It would be 3s^1 because that is how the orbitals are formed.
It would be form lowest to highest: s,p,d,f.
Then it would go to highest, 2 =s, 6=p, d =10, f= 14.
So, it would be: 1s2, 2s2, 2p6, 3s2.
Since 3s2 isn't on here, then 3s1 would become the answer.
DHMO can be lethal (deadly) to humans in small doses.
O True
O False
Yes, DHMO (Dihydrogen monoxide) can be lethal (deadly) to humans in small doses. It's true.
Briefing :Dihydrogen monoxide is a known cause of thousands of deaths each year and contributes significantly to the millions of dollars in environmental and property damage. Dihydrogen monoxide is known to pose several risks, including:
Death from accidental DHMO inhalation, even in small amounts.Solid DHMO exposure over an extended period of time harms tissues severely.A number of unpleasant, but typically not life-threatening, side effects result from excessive ingestion.Acid rain primarily consists of DHMO.Severe burns can result from DHMO gas.Causes soil erosion to occur.To know more about soil erosion :
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18. What is the mass of an object with a density of 2.44g/ml and a volume of
25ml?
a. 61g
b. 61.0g
c. 10.2g
d. 0.098g
The mass of the object with a density of 2.44g/ml and a volume of
25ml is 61g
Density is mass per unit volume.The mass is as follows;d=m/vm=dvm= 2.44 g/ml ×25 ml=61gThe measure of how densely a substance is packed together is called density. It is defined as the mass per unit volume.A measurement of density contrasts the mass of an object with its volume. The amount of matter in a certain volume of an object is referred to as high density. A substance's density describes how thick it is in a given space. Density is essentially a measurement of how tightly things are packed. It is a particular physical trait of that thing.To learn more about density visit:
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A nugget of gold occupies 5.64 mL of water and weighs 108.8521g. Its density is
The density of a nugget of gold which occupies 5.64 ml of water and weighs 108.85 g is 19.29 g/cm^3.
The density of a gold nugget can be calculated by using the following formula:
Density of nugget = Mass of gold nugget/Volume occupied by gold nugget
Here,
the mass of gold is given to be 108.85 grams and the volume occupied by gold is given to be 5.64 ml or 5.64 cm^3.
Putting these values in the above equation
Density = 108.85 g / 5.64 cm^3
Density = 19.29 g/cm^3
Thus, the density of a nugget of gold which occupies 5.64 ml of water and weighs 108.85 g is 19.29 g/cm^3.
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how many moles of nickel are in atoms are there in 9.00 X 10^9 Ni atoms
Answer:
1.49 x 10⁻¹⁴ moles Ni
Explanation:
To find the amount of moles in the sample, you need to multiply the amount of atoms by Avogadro's Number. This conversion is a ratio that describes how many atoms there are per every 1 mole. It is important to arrange the ratio in a way that allows for the cancellation of units (atoms should be in the denominator). The final answer should have 3 sig figs like the given value.
Avogadro's Number:
6.022 x 10²³ atoms = 1 mole
9.00 x 10⁹ atoms Ni 1 mole
--------------------------------- x -------------------------------- = 1.49 x 10⁻¹⁴ moles Ni
6.022 x 10²³ atoms
Name 3 Rectangular Items that are something you can hold. And then name those items' Length, Width, Height, Area, or Volume.
Name 2 Triangular Items that are something you can hold. And then name those items' Length, Width, Height, Area, or Volume.
Name 3-Dimensional Rectangular Items that are something you can hold. And then name those items' Length, Width, Height, Area, or Volume.
Answer:To find the volume of a rectangular prism, we multiply the length of the prism by the width of the prism by the height of the prism.
honeslty
Explanation:
This is an impossible formula. Pretend it is real.
If you had 1 mol of Mn4(ClO4)3 how many moles of Cl would there be?
Remember that you should never include a 1 as a subscript but for the sake of clarity for this problem you may see a 1 as a subscript.
Make sure your answer includes TWO decimal places.
The number of mole of Cl in 1 mole of Mn₄(ClO₄)₃ is 3.00 moles
Description of Mn₄(ClO₄)₃From the formula of the compound, Mn₄(ClO₄)₃ the following were obtained:
4 moles of Mn3 moles of Cl12 moles of OHow to determine the number of mole of Cl in 1 mole of Mn₄(ClO₄)₃From the formula, we can see that 3 moles of Cl are present.
Thus, 1 mole of Mn₄(ClO₄)₃ will contain = 1 × 3 = 3.00 moles of Cl
Therefore, we can conclude that 1 mole of Mn₄(ClO₄)₃ contains 3.00 moles of Cl
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How many moles of Ne are contained in a 5.00 L tank at 155°C and 2.80 atm?
There will be 0.39 moles
Take a look at the He gas in the tank:
P = 2.80 atm, or pressure
Volume = 5.00 liters.
T = (273 + 155) is the temperature. K = 428 K
R = 0.08206 L atm/L of gas (mol K)
Charle's law, Boyle's law, and Gay-Lussac law are the three gas laws that make up the combined gas law, commonly referred to as a general gas equation. For a certain amount of gas, the law illustrates the relationship between temperature, volume, and pressure.
Gas law PV = nRT
So, n = PV/. (RT)
He gasses number = 2.80 x 5.00 / (0.08206 x 428) mol equals 0.39 mol.
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PLS HELP ME WITH MY CHEMISTRY
Answer:
[tex] \boxed{8.9 \: g /cm^3}[/tex]
Explanation:
Given:
Mass of sample= 39.2 g
Volume occupied= 4.4 cm³
To find:
Density=?
Solution:
Formula to be used,
[tex]\sf Density = \frac{mass}{volume} [/tex]
[tex]\sf Density = \cancel{ \frac{39.2}{4.4} } = 8.9 \bar{0} \bar{9} \: g /cm^3[/tex]
The rounder figure answer upto tenths place can be written as 8.9 g/cm³
[tex]\sf \small \pink{Thanks }\: \green{for} \: \blue{joining} \: \orange{brainly } \: \red{community}![/tex]
Name the material sent into slave by a supernova
HELPPP
Ferric chloride combines with water in a reversible reaction to produce ferric hydroxide and hydrochloric acid as shown.
FeCl3 + 3H₂0 Fe(OH)3 + 3HCI
Which reaction must occur at the same time as the formation of ferric hydroxide?
(1 point)
O Fe(OH)3 + 3HCI → FeCl3 + 3H₂O
O FeCl3 + 3HCI → Fe(OH)3 +3H₂O
O FeCl3 Fe + 3Cl
O 2H₂O → H₂ + O₂
Ferric chloride combines with water in a reversible reaction to produce ferric hydroxide and hydrochloric acid as shown.
[tex]FeCl_{3}[/tex] + 3H₂O → [tex]Fe(OH)_{3}[/tex] + 3HCI
The reaction which must occur at the same time as the formation of ferric hydroxide are given below .
[tex]FeCl_{3}[/tex] → Fe · + Cl ·
So , option C is correct one .
The water ionizes to hydrogen and hydroxide ions and the ferric chloride in the water ionizes to iron, or ferric and chloride ions. As a result, the solution becomes more hydrogen ion-rich than it was before the precipitation, which causes the solution to become acidic.
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Answer:
The real answer is Fe(OH)3 + 3HCI - FeCl3 +3H2O
Explanation:
I took the test and this was the correct answer.
PLS HELP!! Animation shows a complete revolution of the Earth around the sun. What happens during this time?
A. Earth experiences a complete day.
B. The moon makes one complete phase change.
C. Four seasons occur on Earth.
D. Day turns to night. Btw this is Science not chemistry!
Answer:
C
Explanation:
it would be a lot more easier if you could show the animation
But nevertheless your answer would be
C Four seasons occur on Earth.
Answer: The answer is letter C.
Explanation:
There are four seasons on our planet Earth . These four seasons are, Spring, Summer, Autumn, And Winter (my personal favorite.)
These four seasons only occur, based on which side of the sun our continent is on. Yes we could literally be facing the sun, but the sun isn’t really directing heat now. (Don’t fact check that.) but anyways, hopefully this helps. And remember, the earth take 365 days to orbit the sun. Which is 12 months, and each season has 3 months each to roam the earth.
Haaaaaaaalllllllpppppp
Name 2 Triangular Items that are something you can hold. And then name those items' Length, Width, Height, Area, or Volume.
Answer:
ice creem cone candy
Explanation
convert 1295 cm2 to m2
Answer:
0.1295 m^2
Explanation:
just divide 1295 by 10000
If the oxide contains 22.24 % O by mass, what is the identity of the metal?
Express your answer as a chemical symbol.
The oxide contains 22.24% O by mass, so the identity of the metal as a chemical symbol is lead (Pb).
What is metal?A substance with high electrical conductivity, luster, and malleability, which readily loses electrons to form positive ions (cations) are called metals.
Mass percentage of oxygen in the oxide, i.e.,
ω(O) divided by 100 ω(O)
=22.24% ÷ 100%.
Mass percentage of oxygen in the oxide, i.e .ω(O) = 0.2224
Now the mass percentage of oxygen in the oxide multiplied by 100 ten we get the mass of oxygen in the oxide. If we take 100 grams of compound:
1) m(O) = ω(O) * 100 g.
Mass of oxygen in the oxide, i.e. m(O) = 0.2224 * 100 g.
Mass of oxygen in the oxide. i.e., m(O) =22.24g
Amount of oxygen, i.e.,
n(O) = mass of oxygen in the oxide ÷ molar mass of oxygen.
n(O) = m(O) ÷ M(O) amount of oxygen
n(O) = 22.24g ÷ 16 g/mol,
amount of oxygen i.e. n(O) = 1.39 mol
Mass of metal in the oxide, i.e., m(M) = 100 g - 22.24 g.
Mass of metal in the oxide i.e., m(M) = 77.76g
Now we to find the molar mass of metal oxide,
Molar mass of the metal :
= mass of metal in the oxide ÷ amount of oxygen(M)
= m(M) ÷ n(M). M(M)
= 77.76 g ÷ 1.39 mol.
Molar mass of the metal will be 5.94 g/mol.
Therefore, The identity of the metal is lead (Pb).
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How can some fish change their
depth in the water column?
Answer:
skill
Explanation:
Answer: The more air a fish swim bladder contains, the higher the fish will suspend or float in the war.
Explanation:
Why is the classification species not considered a group? (1 point)
O Each species is a separate type of organism.
O Each species is an individual organism.
O Each species lacks the characteristics of the levels above.
O Each species shares characteristics with other species.
Each species is a separate type of organism.
A species is a group of creatures that share similar traits. The same species of organisms are capable of sexual reproduction as well as interbreeding and producing fertile offspring. It is a fundamental unit of taxonomy and classification.The system is divided into seven categories: Kingdom, Phylum or Division, Class, Order, Family, Genus, and Species. Kingdom is the most inclusive category.In a group, many types of an organism can be included even if they do not share the same traits. But species is a group of organisms that share similar traits.For example, human beings are species as they are all alike in physical features, way of reproduction, etc. But the animal is considered a group because it included a variety of living beings.Therefore, Each species is not considered a group.
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The emission spectrum of cesium contains two lines whose frequencies are (a)
3.45 xx 10¹4 Hz and (b) 6.53 xx 10¹4 Hz. What are the wavelengths and energies per
photon of the two lines? What color are the lines?
The lines are violet and blue respectively.
What is the energy?We know that the energy of the photon could be obtained by the use of the equation;
E = hf
E = energy
h = Plank's constant
f = frequency
For the first line;
E = 6.6 * 10^-34 Js * 3.45 x 10^14 Hz = 2.3 * 10^-19 J
Given that;
E = hc/λ
λ = hc/E
λ = 6.6 * 10^-34 * 3 * 10^8/2.3 * 10^-19
λ = 8.61 * 10^-7 m or 861 nm
The color is violet
For the second line;
E = 6.6 * 10^-34 Js * 6.53 xx 10^14 Hz
E = 4.3 * 10^-19 J
E = hc/λ
λ = hc/E
λ = 6.6 * 10^-34 * 3 * 10^8/4.3 * 10^-19
λ = 4.60 * 10^- 7 m or 460 nm
The color is blue
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what distance in miles can you drive in your new Prius hybrid, if your car gets 56 miles per gallon and you have 15.5 gallons of gas?
Taking into account the rule of three, you can drive your new Prius hybrid a distance of 868 miles.
Rule of threeRule of three is a way of solving problems of proportionality between three known values and an unknown value, establishing a relationship of proportionality between all of them.
If the relationship between the magnitudes is direct, the direct rule of three must be applied as follow, being a, b and c known data and x the variable to be calculated:
a ⇒ b
c ⇒ x
So: x= (c×b) ÷a
Distance in miles in this caseIn this case, you can apply the following rule of three: If the car for 1 gallon of gasoline gets 56 miles, for 15.5 gallons of gasoline it gets how many miles?
1 gallon ⇒ 56 miles
15.5 gallons ⇒ x
So: x= (15.5 gallons ×56 miles) ÷1 gallon
Solving:
x= 868 miles
In summary, you can drive your new Prius hybrid a distance of 868 miles.
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