Endothermic - Guías de estudio, Notas de estudios & Resúmenes

GCSE AQA Triple Chemistry Paper 1 2024/2025 QUESTIONS AND CORRECT ANSWERS ALREADY PASSED C8 1) What is required for a reaction to happen? - answer a successful collisions C8 2) How can you use a graph to calculate the rate of reaction? - answer calculate gradient (on a curve tangent) C8 3) What four things can speed up the rate of reaction? - answer temperature, concentration, surface area and catalyst C8 11) What formula is used to calculate the rate of reaction? - answer amount of ...

What is the mission of the fire service? - Answer- To save lives and protect property What NFPA standard establishes basic training criteria for Firefighter I and Firefighter II? - Answer- 1001 A _______ is a collection of rules enacted by law in a particular jurisdiction. - Answer- Code Which of the following best describes the action first taken after an alert to the station ? - Answer- Dispatching of emergency services responders The use of ten-codes in radio transmissions was rep...

6.1.3 Final Exam: Semester 2 Exam Chemistry Sem 2 Points Possible: 100 Name: Date: 3/4/2023 In this test, you will apply what you have learned in the semester. Answer the questions below. Submit this to your teacher when you are done. Show all your work on this test. Question 1: Energy in Matter (20 points) A. A student put a bottle of water and a can of sugared soda in the freezer to chill them quickly. When she took them out, the bottle of water was frozen but the can of soda was...

Soft Water/ Rain water - Answer- Best for shampooing and allows shampoo to lather freely Hard Water - Answer- Minerals that lessen the ability of the shampoo to lather Purified water/Deionized water - Answer- Main ingredient in shampoo Surfactant - Answer- has two ends the HYDROPHILIC HEAD and LIPOPHILIC TAIL Hydrophilic Head - Answer- Attracted to water Lipophilic Tail - Answer- Attracted to dirts and oils Acid Balanced Shampoo - Answer- pH of 4.5-5.5 Jheri Redding - Answer...

Which of the following terms is used to refer to the process that generates sufficient quantities of burnable vapors to ignite in the presence of oxidizer A- paralysis B-fire coil C- vapor pressure D-flashpoint - D What type of reaction releases energy in the form of sometimes light A- Kinetic B- endothermic C- potential D- exothermic - D What product of combustion causes The most fire deaths A- carbon dioxide B- toxic smoke C- thermal energy D- hydrogen sulfide - ...

NFPA 1035 Exam Prep 2023 with complete solution 1. The transfer of heat by the movement of air or liquid best defines: A. Conduction B. Radiation C. Convection D. Direct flame contact C Heat transfer that takes place in the form of electromagnetic waves is known as: A. Convection B. Radiation C. Conduction D. Direct flame contact B By which of the following methods can heat travel throughout a burning building? A. Conduction, radiation and convection B. Extension, conduction, an...

BICSI - Installer 1 – Exam Review | 120 Questions | 100% Correct Answers B A third 90-degree bend may be permitted in a conduit run if the run does NOT exceed ______? A 5 m (16.5') B 10 m (33') C 15 m (50') D 30 m (100') C Which of the following is a property of an electromagnetic field built around a conductor that opposes any changes in current flow in a circuit? A Impedance B Capacitance C Inductance D Resistance A Which of the following markings is used for no...

Is NFPA 921 a guide or a standard? - It is the Guide for Fire and Explosion Investigations What are the six steps of the scientific method? - Recognize the need Define the problem Collect the data Analyze the data Develop a hypothesis Test the hypothesis What step of the scientific method is inductive reasoning? - Analyze the data What step of the scientific method is deductive reasoning? - Test the hypothesis What are the four parts of the fire tetrahedron? - Fuel (reducing agent) H...

FINAL EXAM CHM 151 RIO SOLADO M.SCHAAB LATEST UPDATE GRADED A+ What is the difference between an ionic bond and a covalent bond? An ionic bond is formed when one atom transfers electrons to another atom, creating ions that attract each other. A covalent bond is formed when two atoms share electrons. How do you determine the number of valence electrons in an element? The number of valence electrons can be determined by looking at the group number of the element in the periodic t...

CEM 142 MSU Final Exam Questions and Answers Already Passed Does aqueous sugar conduct electricity, why or why not No, because there are no ions Does aqueous NaCl conduct electricity? Yes, because this is an ionic compound (metal/nonmetal) What is the only IMF present in non polar molecules London Dispersion Forces How does electronegativity change in the periodic table Electronegativity increases from left to right (with the right being most electronegative), and increases from bo...