Which statement is incorrect for the following reaction profile? A) The reaction is exothermic. 50 B) The activation energy is 50 kJ/mol. 37.5 C) AH = -25.0 kJ/mol. +25 D) Point 2 is an activated complex.

Q: the liquid 2,3 butanedione has a density of 0.981 g/ml at 18.0 degree celcius.If a 103 gram sample…

A: The density of a substance is defined as a mass of a unit volume of the substance. The density of…

Q: Complete the following conversion. 55 cL = ? nL

A: We have to convert 55 cL to nL  "c" denotes "centi" which is 1/100th part or 10-2 part  Hence the…

Q: physical changes Protein hydrolysis                                                    wax melting…

A: Classify the following as chemical or physical changes. Protein hydrolysis…

Q: A student determines the density of a metal to be 8.55g/cm3. If the theoretical value is 8.91g/cm3,…

A:

Q: sciences, sprang originally from delusions and superstitions, and was at its commencement exactly on…

A: Chemistry is the scientific study of the properties and behavior of matter. It is a natural science…

Q: <ey

A: The question is based on the concept of organic synthesis.We need to synthesize the product using…

Q: How many nL are there in (3.67x10^3) cL

A:

Q: Tracy is receiving lanoxin every 8 hours. She weighs 63 kg. The dose range for this drug is 0.030 to…

A: Given weight of Tracy is 63 kg.  Dose range of lanoxin is 0.030 to 0.060 mg/kg every day. The…

Q: Classify each of the following as an element (E), a compound (C), or a Mixture (M).   14K gold pure…

A: Answer  Classify each of the o following as an element(E) a…

Q: Choose the pure substance from the list below. O tea O a casserole O mercury O sugar water O…

A: To identify: Pure substance among the given options.

Q: Carbon tetrachloride has a specific gravity of 1.590. How much would 45 gal of carbon tetrachloride…

A: Density = mass / Volume  We know that, Specific Gravity (S.G) = Density of compound / Density of…

Q: An electric current of 52.0 mA flows for 6,0 seconds. Calculate the amount of electric charge…

A:

Q: How do I know the number of significant figures if the decimal notation is 8,725 km and the scientic…

A:

Q: Given the structure below, what is the number of relevant resonance structures in which a negative…

A: The Lewis structure or molecular skeleton is also known as the electron dot structure. It is the…

Q: Ozone is a pollutant in the lower atmosphere, but part of the protective shield against UV light in…

A: We have to classify the following properties of ozone as chemical or physical 1) Bluish color 2)…

Q: Which of the following is an element: Brass Zinc Steel             D, Bronze

A: An element is the simplest form of pure substance. On the other hand, a mixture is made up of…

Q: Convert 1134 micrograms/cubic meter to ppm

A: The question is based on the concept of dimension analysis.We need to convert given concentration in…

Q: Which of these are key factors in a scientific community? O age O nationality O collaboration and…

A: Key factors in a scientific community.

Q: A prescription of antibiotics for a 30lb child says to give 100mg three time daily. Is the dosage…

A: Here we need to find out Is it safe for a child of weight 30 lb to take 100 mg antibiotics three…

Introduction to chemistry

Chemistry is a branch of science that deals with the analysis of material and the substances that comprise it. It also manages the properties of these substances and their reactions to form new substances. It is basically centered on particles and atoms that make up components and mixtures. These chemical species will in general connect using bonds.