Answers created by Al E.

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• Are enzymes tertiary proteins?
  
• A point mutation in the beta-globin gene changing the codon from glutamate to Lysine will likely cause what disease?
  
• What is glucose and why is it important to all life on earth?
  
• What do organic molecules always contain?
  
• What are the 3 lewis dot structures for #C_2H_2Cl_2#?
  
• How much heat is absorbed by a 2000 kg granite boulder as energy from the sun causes its temperature to change from 9°C to 23°C?
  
• What is expected to be more common in male offspring than female?
  
• Why are steroids and some vitamins classified as lipids?
  
• What is the cytoskeleton made of?
  
• Define dispersion force? How does this dispersion force result in an attractive intermolecular force?
  
• A solution containing 7g of a non-volatile solute in 250g of water boils at 373.26K. Find the molecular mass of solute?
  
• When does the reaction shift, and how do you know when? For Le Chatelier's Principle
  
• Why are the intermolecular bonds important in enzymes?
  
• What is the structural formula of #C_3H_8O#?
  
• During transcription of mRNA, its adenine would always be paired with? Also give the reason. A: Thymine B: uracil
  
• Chemistry problem?
  
• ZnSo4(s) ➡️ ZnO(s) + SO3(g) - Identify the reactants and products? - identify an easily observable sign that a chemical reaction has taken place?
  
• Is carbonic acid and bicarbonate ions one and the same thing? If not what's the difference.
  
• If 226 kJ of heat increases the temperature of 47.0 kg of copper by 12.5 degree celcius, what is the molar heat capacity of copper?
  
• Curium has a half life of 1.5 hours, how much of a 1000g sample remains after: 1.5 hrs? 3hrs? 4.5 hrs? 6hrs?
  
• What is pH of the solution when 100 ml of 0.1 molarity HCL is mixed with 100 ml of 0.1 molarity CH3cooh? (A)1 (B)2 (C)1.3 (D)2.3
  
• What will be the ph value of buffer solution having 400ml of 0.5MCH3COOH and 800ml of 0.1M CH3COONa which is 1.3% ionised in solution?
  
• Which portion of the cerebellum connects the right and left cerebellar hemispheres?
  
• What volume of #H_2(g)# is produced when 2.00 g of #Al(s)# reacts at STP?
  
• Hemophillia is a sex linked recessive trait in humans. If a father and a son are both hemophilliacs,but the mother is normal,her genotype must be?
  
• What are two functions of the protein molecules in the cell membrane?
  
• What relationship exists between concentration of solution and its density? How would you explain such relationship?
  
• What volume in mL of 0.875 M NaCl(aq) should measure to make 225 mL of a 0.500 M NaCl (aq)?
  
• Find the Keq for this reaction using ICE table?
  
• How many isomers does C4H8O have??
  
• How can the central nervous system be calmed?
  
• What are small cell structures within green plant cells that contain chlorophyll?
  
• Why does RNA translation occur?
  
• How does the Ideal gas law relate to hot air balloons?
  
• #3.0 dm^3# of sulfur dioxide is reacted with #2.0 dm3# of oxygen according to the equation below. #(2SO_2)_(g) + (O_2)_(g) → (2SO_3)_(g)# What volume of sulfur trioxide (in #dm^3# ) is formed?
  
• What is the cerebral cortex?
  
• Whats the difference between the central nervous system & the peripheral nervous system?
  
• How many axons does a neuron have?
  
• What two compound groups are always the same in a nucleotide?
  
• The complete structures of the IMQDK peptides?
  
• How are microfilaments and microtubules different?
  
• How are lysosomes programmed for cell death?
  
• What radicals are most stable?
  
• How are electrophiles ranked?
  
• What are the advantages and disadvantages of infrared spectroscopy?
  
• A sample of hydrogen gas occupies a volume of 13.7 L when measured at 512°C and 134 torr. What is the volume of the gas in milliliters if the temperature is decreased to 328°C and the pressure remains constant?
  
• Methyl amine has higher point or ethyl amine has higher boiling point?
  
• How many grams of #NH_4OH# must be dissolved in 75 g of water to lower the freezing point -3.0°C?
  
• How is operant conditioning applied in behavior modification?
  
• How the proteins are classified?
  
• What is the structural difference between ATP and ADP?
  
• What is the function of cilia in the respiratory system?
  
• What does the conus arteriosus of a frog('s) (heart) look like?
  
• What is the pH of a solution prepared by mixing 55.0 mL of 0.183 M #KOH# and 70.0 mL of 0.145 M #HC_2H_3O_2#?
  
• Which pairs are enantiomers?
  
• The mass of cobalt-60 in a sample is found to have decreased from 0.800g to 0.200g in a period of 10.5 years. From this information, what is the half-life of cobalt?
  
• The H+ of vinegar that has a pH of 3.2 is what?
  
• You are making Phở, a Vietnamese soup, and have discovered that a concentration of #5.84 xx 10^(-6) "M"# anethole will give the soup just the right flavor. How much of a #4.93 xx 10^(-6) "M"# solution of anethole do you need to make 2.36 liters of Phở?
  
• How many grams of glucose, #C_6H_12O_6#, are needed to make 1500 mL of an intravenous D5W solution (5.0% (w/v) glucose solution)?
  
• Pure water freezes at 0°C and boils at 100°C. Would tap water likely freeze and boil at those exact temperatures? Why or why not?
  
• In the following chemical reaction, hoe many grams of SO3 will be produced from 5 moles of sulfur? 2S(s) + 3O2(g) = 2SO3(g)
  
• Are dark bands formed because of the accumulation of myofilaments there?
  
• What happens to the pupil in both bright an dim light?
  
• Question is down below some help please ?
  
• Some help please question below ?
  
• Use standard reduction tables to determine which of the following species will convert Cd2+ to Cd?
  
• HELP, Reaction Rate?
  
• How much gram of urea dissolved in 100 gm of water to create a difference of 105°C between freezing point and boiling point?
  
• How would you make 500 mL of a 1.5M buffer of benzoic acid/sodium benzoate that effectively buffers to a pH of 4.40?
  
• What volume of 0.250 mol/L (aq) solution contains 12.8g of Na2CO3? (I dont know how to use the gas laws, the answer is 483 mL, but I dont know how to get that)
  
• How many chain isomers are possible for hexane?
  
• How does organic chemistry differ from inorganic chemistry?
  
• Please Someone?
  
• How do the sclera and cornea differ?
  
• What is the meaning of ENDOCYTOSIS ??
  
• Number of HCL molecules present in 10ml of 0.1N HCL solution is?
  
• What is the difference between enantiomers and chirals?
  
• Chemistry Acid and Bases Help?
  
• Why is Ka important in chemistry?
  
• If I have a 254 mL bag at a temperature of 19.3 degrees C and I leave it in my car which has a temperature of 62.2 degrees C, what will the new volume of the bag be?
  
• Working on a lab for Chem- my tutor is stuck so thought I'd ask here. NaN3 + KNO3 gives a reaction of N2 gas. We got a 2:1 ratio but the other data given to us doesn't have a volume for the gas (pv=nrt). Any ideas? Thank you.
  
• If 20 mL of 0.10 M KOH is added to 40 mL of 0.050 M HCOOH, what is the pH of the mixed solution at 25°C? Ka for HCOOH is 1.8 × 10^–4 at 25°C.
  
• Convert 1400 mmHg into atmospheres. Enter answer as a number with units rounded to the proper number of significant digits?
  
• At 25oC, the value of Kc for the following reaction is 82. 𝐼2(𝑔) + 𝐶𝑙2(𝑔) ⇌ 2𝐼𝐶𝑙(𝑔) 0.83 mol of I2(g) and 0.83 mol of Cl2(g) are placed in a 10 L container at 25oC. What is the concentration of the three gases at equilibrium?
  
• What is the difference between organic chemistry and analytical chemistry?
  
• What are enzymes in chemistry?
  
• The rate constant for the reaction 2 C (g) -> D (g) is #0.231 s^-1# at 2°C and #11.6 s^-1# at 77°C. What is the the value of A in the Arrhenius equation?
  
• What is a functional group?
  
• Why is a noncarbocation intermediate necessary for an antimarkovnikov halogenation to happen?
  
• Q2/ Calculate the degree of dissociation and pH of a 0.15 moldm-3 solution of weak acid for which Ka = 3×10-5 ?
  
• Why is it important for neurotransmitters to be deactivated?
  
• The weather in Nome is -15.1 degrees C.If Jane is on her morning jog alone the streets of Nome and fully exhales 4.98 L of air from her lungs, what will the new volume of this air be? The air while in Jane's lungs is at her body temperature, 38 degrees C.
  
• How many moles of Ag contain #4.49 * 10^23# atoms Ag?
  
• Explain if H2O2 is likely to disproportionate into H2O and O2 ?
  
• Chemistry problem?
  
• A 53-g piece of an unknown metal is heated to 119°c and then placed into a calorimeter containing 165g of water at a temperature of 19.0°c.The final temperature of both is 32.0°c. What is the specific heat of the unknown metal?
  
• Which is a more stable conjugated compound: the cis form or the trans form and why?
  
• For the following reaction, 0.308 grams of hydrogen gas are allowed to react with 43.2 grams of iodine. hydrogen(g)+ iodine(s) yields hydrogen iodide(g) What is the maximum mass of hydrogen iodide that can be formed? ______? What is the formula for limiti
  
• Calculate the pH of 0.02 mol dm-3 of Calcium hydroxide?
  
• How many sigma and pi bonds are present in buta-1-3-di-ene ?
  
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