At what temperature, in °C, is a certain reaction at equilibrium if AH = +85.5 kJ/mol and AS = +170.2 J/mol · K?

Q: Explain the difference between a pure chemistry and an applied chemistry.

A: Chemistry can be defined as branch of science  that deals with chemical composition of…

Q: difference between physics and chemistry

A: Physics looks for unifying principles; chemistry often focuses on the particulars. Chemist has an…

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: To the correct number of significant figures, what are the average and standard deviation of the…

A: The four given numbers are 7.159, 7.024, 7.183 and 7.005The average value is calculated as follows,

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: 1/0.299=0.00495 * 440 + 1/b

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

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Q: An electric current of 0.650 A flows for 50.0 seconds. Calculate the amount of electric charge…

A: Given that, Current i=0.650 A time t= 50.0 seconds charge q= ?

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

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Q: how did you get 37.96%? i put the calculations on my calculator 30.43 / 14.01 / 80.04 * 100 and it…

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Q: write a one-sentence definition for each of the following chemistry and chemical

A: Chemistry is a branch of science that concerned with the substances of which matter is composed,…

Q: Complete the following table. Be sure each of your answer entries has the correct number of…

A: a). Energy content in calories for a chocolate chip cookie is given as .We have to determine 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: An electric current of 52.0 mA flows for 6,0 seconds. Calculate the amount of electric charge…

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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: 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: 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…

Q: IS chemistry going to be fun

A: Chemistry is branch of science which deal with inorganic, physical and organic chemistry.

Q: 4.05 kg + 567.95 g + 100.1 g

A: Given-> 4.05 kg + 567.95 g + 100.1 g  ->In addition and subtraction answer contains least…

Q: A mass of mercury occupies 0.850 L. What volume would an equal mass of ethanol occupy? The density…

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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.