What is the pH of a buffer made from 0.350 mol of HBrO (Ka = 2.5 × 10-9) and 0.150 mol of KBrO in 2.0 L of solution?

Q: (a) Study the picture below very carefully: Love Pik lovepik com (i) Write down anything WRONG which…

A: In chemistry, there are many ways to check the deviation of experimental data from the accurate…

Q: Give picture of example of particulate matter in ocean.

A: Particulate matter is a mix of solids and liquids, including carbon, complex organic chemicals,…

Q: Please Help!     1) Identify each box as an element, compound or mixture of compounds. 2)…

A: Elements - In chemistry, element is a pure substance consisting only only one kind of atom that all…

Q: chocolate candy compound and contituent elemen

A: chocolate is a food product which is made from roasted  and ground cocoa pods

Q: Questions 1. What term is used to describe the phase change observed when iodine crystals are heated…

A:

Q: chemical and physical changes

A: The difference between physical and chemical changes in a reaction is as follows.

Q: Scientific_Method_PPT_questions References Mailings Review View Tell me what you want to do..…

A: Given : Scientific method  To find : Steps in scientific method  Solution : Scientific method is a…

Q: Classify each substance as an element, a compound, a homogeneous mixture, or a heterogeneous…

A: Given substances :

Q: Petrochemicals are derived from which of the following resources? (Sec. 1.2) (a) atmosphere (b)…

A: Petrochemicals are derived from which of the following resources has to be given,

Q: Which state of matter has indefinite shape but constant volume?    Group of answer choices   Solid…

A: The three States of matter are solid , liquid and gases. Plasma is also one of the state of matter.

Q: Wind mill is a simple device for converting Kinetic Energy to Electrical Energy. Select one: True…

A: Statement : Wind mill is a simple device for converting Kinetic Energy to Electrical Energy.

Q: Choose Physical or Chemical Change to describe the changed described. A copper statue, over time,…

A:

Q: Heat cannot be measured directly with a device. Select the correct response: True False

A:

Q: Question attached

A: External standard method: An external standard is like the internal standard (known behaviour), but…

Q: Which of the following is considered a current asset? A) Land B) Machinery C) Accounts receivable D)…

A: Step 1:Step 2: Step 3: Step 4:

Q: HOW CHEMISTRY SUBJECT CHANGE YOU

A: Chemistry is a very fascinating field of study. Because it is so fundamental to our world, chemistry…

Q: Circle any of the following that are most likely a pure substances? A) T-shirt C) air E) tap water…

A: Pure substance: A pure substance (element or compound) always has a definite composition by mass.…

Q: Chemistry is a science because:Unique option.   A) is a set of knowledge   B) use the scientific…

A: What is chemistry?

Q: Heat cannot be measured directly with a device.

A: Device that can be used to measure the heat of a system is calorimeter.

Q: question. The melting point of an unknown solid is determined to be 40°C. What is this temperature…

A: Celcius, Fahrenheit and Kelvin are all units of temperature and can be converted from one unit to…

Q: Select all of the following answers that are true about describing matter. A)matter cannot be…

A: Anything that occupies space is known as matter. There are three forms of matter broadly that is…

Q: Question 3 Gold is an example of O a compound. an element. a heterogeneous mixture. a homogeneous…

A:

Q: 1. 2. What is a mixture? What is a molecule? 3. What is an atom? 4. How are mixtures and molecules…

A: Chemistry is a combination of various components including atoms, molecules, elements, compounds and…

Q: If 46 students take chemistry exam and 85% of them pass them exam how many students do not pass the…

A: To solve this problem first we have to calculate the percentage of students who do not pass the…

Q: Students are given samples of unknown chemical compounds. The samples could be ionic, molecular,…

A: Experiment -1 Solubility in water: Ionic compound are soluble and molecular compounds are insoluble.…

Q: Course name: College Chemistry You need to solve this problem based on Problem, Data, Hypothesis…

A: The objective of the question is to apply the scientific method to the scenario of determining the…

Q: Mixture Compound Element Answer Bank propane table salt carbon dioxide milk vinegar охудen aluminum…

A: Mixture have no definite proportion of their constituents whereas compounds consist a definite…

Q: 4 A hydrogen peroxide molecule contains 2 hydrogen atoms and 2 oxygen atoms. This molecule is_____…

A: A monoatomic species is formed by a single atom. A diatomic molecule is formed by two atoms and a…

Q: What is the mass of a solution if 25.0 ml of NaOH was added to a 35.0 ml of water? Assume a density…

A: Given that -  Volume of NaOH = 25.0 mL  Volume of water = 35.0 mL  And, density= 1.00 g/mL    Now,…

Q: Question is in photos,

A: 1) Since for the 0th order reaction, the graph between the [AB] v/s t should be linear for the 1st…

Q: Question 1 of 30 Convert 0.386 to milligrams . Use only the metric system. 386 mg II

A:

Q: Select the best statement: Physical changes may be reversed by changing the temperature Physical…

A: Physical change: Change in the physical properties of the substance is called as physical change.It…

Q: When nature behaves in a certain way over and over again, under all sorts of different conditions,…

A: Please find your solution below : Law is a relationship between variables in a group of data that…

Q: D Question 2 Classify each property as physical or chemical. a) the explosiveness of hydrogen gas…

A:

Q: I need answer for that question you can give the question because it's laboratory experience of…

A: 3)SDS polyacrylamide gel eletrohoresis is a technique used for protein molecule seperation based on…

Q: Why is it important to learn chemistry?

A:

Q: Using an example, explain the difference between a physical property and a chemical property

A:

Q: list five physical properties

A: Physical properties are: 1. Boiling point 2. Melting point 3. Colour 4. Odour 5. Density 6.…

Q: Write each of the following numbers in exponential or scientific notation. Write each number to two…

A: Scientific notation: Scientific notation is a way of expressing numbers in decimal form with a…

Q: Complete the following table Material Mass of Displaced Water (g) Mass of Sample (g) Volume of…

A: Given data: Material Mass of Displaced water (g) Mass of sample (g) Volume of Sample (mL) Density…

Q: What is could be the calculated lambda max of this compound? O 275 280 285

A:

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.