What is an "untreated striking surface" and will it light if you slide a safety match across it?
Reactants of KClO3(Being the match head) and P4 (Being the striking surface) makes the safety match to light up.
Untreated striking surface means a surface of packing lacking P4. Without the P4, the chemical reaction cannot take place to make fire.
So, overall we can say that , If you slide a safety match across an untreated striking surface, it will not light because there is no counter reactant.
What is an "untreated striking surface" and will it light if you slide a safety match...
Light striking a metal surface causes electrons to be emitted from the metal via the photoelectric effect.In a particular experiment to study the photoelectric effect, the frequency of the incident light and the temperature of the metal are held constant. Assuming that the light incident on the metal surface causes electrons to be ejected from the metal, what happens if the intensity of the incident light is increased?Check all that apply.The work function of the metal decreases.The number of electrons...
You slide a chair across a rough, horizontal surface. The chair's mass is 18.8 kg. The force you exert on the chair is 165 NN directed 26 degrees below the horizontal. While you slide the chair a distance of 4.70 mm , the chair's speed changes from 1.50 m/sm/s to 2.60 m/sm/s . Find the work done by friction on the chair.
Example 7. A current of 1 μΑ is generated by light striking a phototube. If this current is made to flow through a 1 MJ2 resistor, what is the voltage across the resistor? Phototube 1 Meg 180 V Example 8. What are the values of i, i2, i, and i4 in the circuit shown below? Kirchhoff's current law applied to the two junctions gives the following information. The currents can be calculated if ii and i2 are determined, which can...
Employee Involvement and Safety and Health Inspections Create a 7- to 10-slide presentation on the topic of Employee Involvement and Safety and Health Inspections. You may use various sources, including your textbook. Be sure to cite any sources used in a reference slide with proper APA formatting. (Cover and reference slides do not count in the total.) You may also use the slide notes function to explain slide contents as necessary. Be sure to include the following in your presentation:...
A 53 N force is needed to slide a 50.0kg box across a flate surface at a constant velocity. What is the coefficient of kinetic friction between the box and the floor? 0.10, 0.13, 0.09, 0.11
What colour of the visible light spectrum striking your solar cell are being absorbed by it? What would happen to its power efficiency if a filter of the same color as the anthocyanin was placed over your cell? The solar cell is a TiO2 solar cell which utilizes raspberries.
Objective lens Refracted (lost) light rays, VY Immersion oil Slide Condenser - ( Light source Figure 2 Refractive index in air and in mineral oil Carrera attachment Eyeplece focular lens) Light pathway LU Arm Body tube Objective Coarse and fine focusing adjustment knob Stage Light source Spircimen Condenser Illuminator Figure 3 Pathway of light in a compound scope Microscopy/Microscopic Examination of Stained Cell Preparations Q8 Use Figure 2 and 3 in the lab info to answer the following question. Which...
When monochromatic light is incident on a metal surface, the maximum kinetic energy of the photoelectrons emitted is 3.10 eV. a. Find the wavelength of the photons striking the metal. b. In what region of the electromagnetic spectrum does this wavelength occur? c. Find the maximum velocity of the photoelectrons.
1. When light is refracted across a surface, what are the incident and refracted angles measured with respect to? a) A line perpendicular to the surface the light is refracted through b) A line in the plane of the surface the light is refracted through. c) The plane containing both the incident and refracted light rays d) The plane of the surface the light is refracted through. 2. Which of the following conditions are required to observe light dispersion through...
1. White light passes through two perfect cyan filters in a row before striking a wall painted magenta. What color does the light appear to be where it strikes the wall?