Chemistry

Which statement defines enzymatic activity? Enzymes are required to slow down biological reactions within cells. Specific enzymes can catalyze a wide variety of chemical reactions. Enzymes regulate cellular functions through feedback mechanisms. Enzymes bind substrates so that reactive groups have many different orientations.
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True or False: Only animals can move pollen from plant to plant.A. TrueB. False
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Help me! Who ever gets to answer and has the best answer gets brainliest
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can anybody help me with this
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Chlorofluorocarbons may be harming the ozone layer by ____.a.adding more ozone moleculesc.destroying ozone moleculesb.blocking ultraviolet radiationd.adding carbon dioxide moleculesPlease select the best answer from the choices provided
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The gases are contained in a reaction vessel and are in equilibrium at 298 K X2Zi 2XZ2(g)a. Activation energy b. Total mass of the system c. Molar concentration of XZ4(g) d. Number of molecules present e. Equilibrium constant 1. Is decreased by the addition of a catalyst? 2. Is decreased when the volume of the reaction vessel is increased and equilibrium is reestablished at 298 K?
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An object has balanced forces acting on it. Which of the following describes the result these balanced forces have on the object? A. It remains at rest or speeds up in the same direction. B. It speeds up in the same direction or moves at constant speed. C. It speeds up in the same direction or slows down. D. It remains at rest or moves at constant speed in the same direction.
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If you want to change the type of element your atom is, you can either (2 RIGHT CHOICES)add a protonadd a neutronadd an electron
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i have six protons and six neutrons. i need help whats the answerrrrrr
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does anyone know this please?
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Q3. When copper (II) chloride reacts with silvernitrate, copper (II) nitrate and silverchloride are formed.Write the balanced equation for the reaction given above:A.CuCl2(aq) + 2 AgNO3(aq) Cu (NO3)2(aq) + 2 AgCl(s)B.CuCl2(aq) + NaNO3(aq) Cu (NO3)2(aq) + AgCl(s)C.CuCl2(aq) + 2 NaNO2(aq) Cu (NO2)2(aq) + 2 AgCl(s)D.CuCl(aq) + NaNO3(aq) Cu NO3(aq) + AgCl(aq
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which system does the endocrine gland influence to fight infections
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help pleaseeee. over dilutions in chemistry
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6. Menthol is a member of the terpene family of natural products. It exists in a (1R, 2S, 5R) form and a (IS, 2R, 5S) form. Are these two compounds enantiomers or diastereomers?
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What evidence from the experiment shows that conduction occurred? In your answer, be sure to include the materials involved in the transfer of heat through conduction.Answer:Sample Response: The melting of the chocolate pieces one by one showed that it was caused by heat flowing through the foil bridge. The transfer of heat happened between the foil bridge and the chocolate pieces because they were touching each other.
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Freshwater leeches attach to fish and suck blood from the fish for extended periods of time. This results in sores on the fish that often become infected.This relationship is best described as .
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A student is heating a crystal of alum todetermine the hydrate formula. If she removesit from the heat before all the water has beenremoved, what will happen to the calculatedhydrate formula?A. It will not be affected by the error.B. The mole ratio will indicate less water than wasactually present.C. The mole ratio Will indicate less alum than wasactually present.
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2. A chemical's flash point is the
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omg pls help i dunno what the frick frack this is
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In what form metals are found in nature
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The substances below are listed by increasing specific heat capacity value. Starting at 30.0 C, they each absorb 100 kJ of thermal energy. Which one do you expect to increase in temperature the most? (3 points) a Silver, 0.239 J/(g C) b Aluminum, 0.921 J/(g C) c Lithium, 3.56 J/(g C) d Water, 4.184 J/(g C)
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Type the correct answer in the box. Express your answer to two significant figures.A reaction between 1.7 moles of zinc Ipdide and excess sodium carbonate ylelds 12.6 grams of zinc carbonate. This is the equation for thereaction:Na2CO3 + Zniz - 2Nal + ZnCoz.What is the percent yield of zinc carbonate?The percent yield of zinc carbonate is5.911X.
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A reaction has a theoretical yield of 27.6 g. When the reaction is carried out, 13.4 g of the product is obtained. What is the percent yield?A) 48.6 %B) 206 %C) 370 %D) 64.7 %
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A gas has a volume of 15.0 ml at 25 degree Celsius. What is the volume of the gas at 50 degree Celsius.
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