Chemistry High School
Answers
Answer 1
- Long term effects
Chronic drug use can alter a person’s brain structure and function, resulting in long-term psychological effects, such as: depression, anxiety, panic disorders, increased aggression, paranoia, hallucinations.
- Cardiovascular disease
Stimulants, such as cocaine and methamphetamines, can damage the heart and blood vessels. The long-term use of these drugs can lead to coronary artery disease, arrhythmia, and heart attack.
- Respiratory problems
Drugs that people smoke or inhale can damage the respiratory system and lead to chronic respiratory infections and diseases. Opioids slow a person’s breathing by binding to specific receptors in the central nervous system that regulate respiration. By depressing a person’s respiration, these drugs can lead to slow breathing or heavy snoring.
- Kidney damage
The kidneys filter excess minerals and waste products from the blood. Heroin, ketamine, and synthetic cannabinoids can cause kidney damage or kidney failure.
- Liver disease
Chronic drug and alcohol use can damage the liver cells, leading to inflammation, scarring, and even liver failure.
- Overdose
Taking too much of a drug or taking multiple drugs together can result in an overdose. According to the Centers for Disease Control and Prevention (CDC), drug overdose caused 67,367 deathsTrusted Source in the United States in 2018. Opioids contributed to nearly 70% of these deaths.
How to get help:
Finding the right treatment program can be a daunting task. Here are a few things to think about when seeking treatment for drug abuse, misuse, or addiction:
consider whether inpatient or outpatient services would be the best fit
find local treatment centers using this resource from the Substance Abuse and Mental Health Services Administration
note that state-run treatment centers and programs can be free of charge
look for programs that use evidence-based treatment strategies
Related Questions
calculate the mass in 0.0040 moles of potassium permanganate
Answers
Take .0040 moles x ( 158.034g KMnO4/1 mole) = .632136g. The moles cancel out and you are left with the mass in grams.
Convert 2.3 atm to psi
Answers
Answer:=33.8 psi
Explanation:
Answer:
33.8007 (i think)
Explanation:
Percent yield is the quantity of product actually produced compared to the quantity _______.
a. the limiting reactant
b. volatile materials
c. of expected product
d. the excess reactant
Answers
Answer:
Of expected product
Explanation:
Percent yield is the quantity of product actually produced compared to the quantity of expected product and the correct option is option C.
What is the percent yield?
Percent yield is the ratio of actual yield divided by theoretical yield multiplied by 100. It gives information regarding the percentage of products formed in the reaction.
Percentage yield = Actual yield / Theoretical yield × 100
Percent yield is very important in the manufacture of products.
Percent yields are understandably less than 100%, however, percent yields greater than 100% are possible if the measured product of the reaction contains impurities that cause its mass to be greater than it actually would be if the product was pure.
Theoretical yield is the expected amount of products formed in the reaction.
Therefore, percent yield is the quantity of product actually produced compared to the quantity of expected product and the correct option is option C.
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When a solution reaches the equivalence point in a titration, which of the following is NOT true?
A). [H+] is equal to [OH-]
B). pH is close to 7
C). The volume of the titrant will be equal to the volume of the analyte
D). The moles of H+ ions will be equal to the moles of OH- ions
Answers
Answer:
I think it's B). pH is close to 7
Which gas would you expect to have the fastest diffusion rate?
A. Ammonia (NH3)
B. Oxygen (O2)
C. Nitrogen (N2)
Answers
A ammonia as it has the least molar mass
What is the relationship between wavelength and energy in electromagnetic waves?
Answers
Answer:
The varying frequencies of solar energy are explained by the electromagnetic spectrum, which organizes the frequency types based on wavelength, which are measured in nanometers. The longer the wavelength the less energy the wave carries, the shorter the wavelength the higher the energy. The electromagnetic spectrum is displayed in the chart below.
Hope this helps. :)
A lead mass is heated and placed in a foam cup caloriemeter containing 40.0mL of water at 17.0 C. The water reaches a temperature of 20.0 C. How many joules of heat were released by the lead?
Answers
the Answer is 502 Joules
What are the six atmospheric conditions that make weather?
Answers
Temperature, humidity, precipitation, air pressure, wind speed, and wind direction.
A student walks 20.0 m [S] in 10.0 s. Then she walks another 10.0 m [S] in 8.50 s.
What is the average velocity of the student?
Answers
1.62 m/s
Velocity is the rate of change in position over the change in time.
The total change in position is 20 + 10 = 30m, and the total change in time is 10.0 + 8.50 = 18.5s.
Thus, 30.0m/18.5s = 1.62 m/s
A sample of a compound contains 0.300 mol of carbon and 1.20 mol of hydrogen. What is the empirical formula of the compound?
Answers
Answer:
CH4
Explanation:
The number of moles of carbon and hydrogen has been given as follows:
C = 0.300 mol
H = 1.20 mol
Next, we divide each mole value by the smallest (0.300)
C = 0.300 ÷ 0.300 = 1
H = 1.20 ÷ 0.300 = 4
The empirical ratio of Carbon and Hydrogen is 1:4, hence, the empirical formula is CH4
Which Ionic Chemical Formula below is INCORRECT? NaCl MgO Ba2Cl Li2S
Answers
Answer:
Li2S
Explanation:
Helpp plssssss :)
.....
Answers
b is right yuh yuh yuh yuh
A sample of a compound is added to distilled water in a clean beaker. A reaction occurs
and the water temperature drops rapidly. Which of the following statments best supports this
observation?
A. An endothermic reaction occurred
B. The water was originally warmer than the compound
C. An exothermic reaction occurred
D. The beaker was contaminated by another compound
Answers
Answer: An endothermic reaction occurred
Explanation:
A sample of a compound is added to distilled water in a clean beaker. A reaction occurs and the water temperature drops rapidly which indicates that an endothermic reaction occurred. Hence, option A is correct.
What is an endothermic reaction?
Endothermic reactions are chemical reactions in which the reactants absorb heat energy from the surroundings to form products.
An endothermic reaction means that heat is absorbed during this reaction (enthalpy change value has a positive sign).
During the endothermic reaction heat is absorbed from the surroundings (here, water) and hence the temperature of the water in which the reaction is taking place decreases.
Hence, option A is correct.
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How many hydrogens are in 4H207?
Answers
4 I think
Hope that helped
8
It’s 8 because you mulitiply 4x2 so if you had to do oxide(oxygen) it would be 4x7 cuss you multiply the number added before H2O7 and the small numbers already there (deside it) is multiplied
Hope this helps you
You start at (8, 1). You move right 2 units. Where do you end
Answers
Answer:
(10,1) I Believe this is the correct response, if not I apologize. Hope it helps! (^^)
Necesito la respuesta
Answers
Answer:
la tercera caja (3rd box)
Explanation:
usa desmos para obtener más ayuda
On the basis of electronegativity differences between atoms, which of the following scientific claims is the most accurate regarding the bonding in Mg(NO3)2(8) ?
A) There is polar covalent bonding between Mg atoms and N atoms.
B) There is polar covalent bonding between Mg atoms and O atoms.
C) There is ionic bonding between N5+ ions and O2- ions.
D) There is ionic bonding between Mg2+ ions and NO3- ions.
Answers
Yes just got a quiz c
There is ionic bonding between Mg²⁺ ions and NO₃⁻ ions. A Further explanation is below.
Ionic bonding seems to be a form of interaction wherein the cationic as well as unpaired electrons are powerfully electrostatically connected.
Throughout the general view, the ionic bonding occurs between someone metal/nonmetal owing to their large electro(-) discrepancy, while bond formation occurs between nonmetals due to the relatively low electro(-) gap.Even though there are metals as well as non-metals, the relative electronegativity differential between (Mg²⁺) and (NO₃⁻) however is large.
Thus the above response i.e., option D) is correct.
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CH3CH2OH can interact with other like molecules through:
a) dispersion forces
b) dispersion forces and dipole dipole interaction
c) dispersion forces, dipole dipole interaction, and hydrogen bonds
Answers
Answer:
B
Explanation:
All molecules have dispersion forces, and this molecule is polar, so there is dipole dipole interaction, but no where in the molecule is hydrogen bonded to nitrogen, oxygen, or fluorine. This means that there is no hydrogen bonds.
if you have obtainted more than required amount of a solid chemical from a reagent bottle you should
A. dispose of excese as directed
b. save the excuses for the laboratory period
c. throw the excess into the nearest trash question
d. return the excess to the reagent bottle
Answers
Answer:
A dispose of excese as directed
ALUMINUM HAS THREE OUTER ELECTRONS,what charge will the element have
Answers
Answer:
Al3+
Explanation:
aluminum has an atomic number of 13.. So when using the KLMN configuration.. 3 is in its outermost shell being M
'The function of an organism as a whole is organ of the combined activities and interaction of the constituent of the cells.' give reason
Answers
Answer:
Because organism is made up of organs
organs are made up of tissues
tissues are made up of cells
Therefore interaction of cells give outcome to tissue which further show's results in organs and to organ system and then to the body as a whole
Explanation:
ACELLUS HELP ASAP
Name the following alkyne:
CH3CH2C = CCH2CH2CH3
Answers
Answer:
Option B. 3–heptyne
Explanation:
To obtain the name of the compound given above, we must:
I. Determine the functional group of the compound.
II. Determine the longest continuous carbon chain. This gives the parent of the compound.
III. Locate the position of the functional group.
IV. Combine the above to obtain the name of the compound.
Now we shall name the compound as follow:
I. The compound has carbon to carbon triple bond (–C≡C–). Thus, the compound is an alkyne.
II. The longest continuous carbon chain is 7 i.e heptyne
III. The functional group i.e the triple bond (–C≡C–) is located at carbon 3
IV. The name of the compound is
3–heptyne
Option B gives the correct answer to the question.
PLZ HELP!!!!!! IN YOUR OWN WORDS PLZ! :D
Imagine your cell phone rings. Describe how the sound gets transmitted from your phone to your ear, and then, from your ear to your brain. In your response, be sure to mention the type of wave that a sound wave is, the medium the sound is transmitted through before it gets to your ear, and what happens in your ear once the sound reaches it.
Answers
Answer:
SOUND WAVE (carried by thin metal inside the phone) ⇒ELECTRICAL ENERGY (over the wire) ⇒SOUND WAVE (that is heard by someone on the side of the phone)
Explanation:
What is a sound wave?
A wave that is comprised of compression and refraction, by which sound is propagated in an elastic medium such as air.
How does sound get transmitted from phone to ear?
The sound waves are carried to a thin metal disk inside the phone, known as the diaphragm, and are converted into electrical energy. The electrical energy travels over wires to another phone and is converted from electrical energy to sound waves again which can be heard by the one on the other end of the phone.
How does sound get transmitted from ear to brain and what happens when sound reaches the ear?Sound waves enter the outer ear and travel through a small passageway (ear canal), which leads to the eardrum.The eardrum vibrates from the coming sound waves and sends these vibrations to three tiny bones in the middle ear. These bones are known as the malleus, incus, and stapes.The bones present in the middle ear amplify the sound vibrations and send these vibrations to the cochlea (the snail-shaped structure that is filled with fluid present in the inner ear). An elastic separation runs from the beginning to the edge of the cochlea, splitting it into upper and lower parts. This separation is called the basilar membrane as it serves as the base on which key hearing structures sit.Once the vibrations result in the fluid inside the cochlea rippling, a traveling wave appears along the basilar membrane. Hair cells (sensory cells) sitting on top of the basilar membrane ride the wave. Hair cells near the broad end of the cochlea detect higher-pitched sounds. Those closer to the center detect lower-pitched sounds, such as a large dog barking.As the hair cells move up and down, microscopic hair-like projections (known as stereocilia) that perch on the peak of the hair cells crash against an overlying structure and bend down. Bending results in pore-like channels, which are at the tips of the stereocilia, opening up. Then chemicals rush into the cells, producing an electrical signal.The auditory nerve carries this electrical signal to the brain, which in return it into a sound that we recognize and understand.
In this way, sound reaches our ears.
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A solution is made by dissolving 4.8 moles of salt in 1.6L of solution. What is the molarity
of the solution?
Answers
Answer:
3M
Explanation:
moles ÷ liters = molarity
4.8 ÷ 1.6 = 3M
3.00 L of a gas is collected at 35.0°C and 705.0 mmHg. What is the volume at STP?
Group of answer choices
2.55 L
1.65 L
2.47 L
3.10 L
Answers
Answer:
2.47L
Explanation:
Using the combined gas law equation as follows:
P1V1/T1= P2V2/T2
Where;
P1 = initial pressure (mmHg)
P2 = final pressure (mmHg)
V1 = initial volume (L)
V2 = final volume (L)
T1 = initial temperature (K)
T2 = final temperature (K)
According to the information provided in this question;
P1 = 705mmHg
P2 = 760mmHg (STP)
V1 = 3.00L
V2 = ?
T1 = 35°C = 35 + 273 = 308K
T2 = 273K (STP)
Using P1V1/T1= P2V2/T2
705 × 3/308 = 760 × V2/273
2115/308 = 760V2/273
Cross multiply
308 × 760V2 = 2115 × 273
234,080V2 = 577,395
V2 = 577,395 ÷ 234,080
V2 = 2.47L
A 634.5 g sample of helium absorbs 125.7 calories of heat. The specific heat capacity of helium is 1.241 cal/(g·°C). By how much did the temperature of this sample change, in degrees Celsius?
Answers
Answer:
[tex]\Delta T=0.160\°C[/tex]
Explanation:
Hello there!
In this case, according to the following equation for the calculation of heat in this calorimetry problem:
[tex]Q=mC\Delta T[/tex]
It is possible for us to calculate to calculate the change in temperature for this process by solving for DT in the aforementioned equation:
[tex]\Delta T=\frac{Q}{mC}\\\\ \Delta T=\frac{125.7cal}{634.5g*1.241 cal/(g\°C)} \\\\ \Delta T=0.160\°C[/tex]
Best regards!
What volume will 2.0 moles of nitrogen occupy at 0.947 atm and 20.0 °C?
Answers
Answer:
V = 50.77 L
Explanation:
Given that,
No. of moles, n = 2
Pressure, P = 0.947 atm
Temperature, T = 20°C = 293 K
We need to find the volume occupies by Nitrogen gas. Using gas law,
[tex]PV=nRT\\\\V=\dfrac{nRT}{P}[/tex]
Where
R is gas constant
Put all the values,
[tex]V=\dfrac{2\times 0.08205\times 293}{0.947}\\\\V=50.77\ L[/tex]
So, the volume occupied by the gas is equal to 50.77 L.
What are the requirements needed for a hydrogen bond to form?
Answers
Answer:
Explanation:
it should be more electro-negative
than hydrogen and it should be small sized atom
The molecules who fulfill these needs are
oxygen, nitrogen and fluorine.
What is an Independent Variable (IV)? *
Answers
here's your answer dear friend❤❤
f
A fluorinated organic gas in a cylinder is com-
pressed from an initial volume of 930 ml at
156 Pa to 400 mL at the same temperature.
What is the final pressure?
Answer in units of Pa.
Answers
Answer:
Final pressure = 362.7 Pa
Explanation:
Given that,
Initial volume, V₁ = 930 ml
Initial pressure P₁ = 156 Pa
Final volume, V₂ = 400 mL
We need to find the final pressure. We know that the relation between volume and pressure is inverse i.e.
[tex]V\propto \dfrac{1}{P}\\\\\dfrac{V_1}{V_2}=\dfrac{P_2}{P_1}\\\\P_2=\dfrac{V_1P_1}{V_2}\\\\P_2=\dfrac{930\times 156}{400}\\\\P_2=362.7\ Pa[/tex]
So, the final pressure is equal to 362.7 Pa.
