A certain primary cell has a terminal voltage
A certain primary cell has a terminal voltage of 1.24 volts when supplying a current of 2A. Immediately after the load was disconnected the terminal voltage increase to 1.28 volts what is the internal resistance of the cell.
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How much heat (in {rm kJ}) is evolved in converting 1.00 {rm mol} of steam at 160.0^circ C to ice at -55.0^circ C?
A hypothetical metal has a face-centered cubic unit cell and a density of 6.12 g/cm3. The molar mass of the metal is 143.2 g/mol. What is the atomic radius of this metal?
In a tempering process, glass plate, which is initially at a uniform temperature Ti, is cooled by suddenly reducing the temperature of both surfaces to Ts.
Find the mass of the sugar (C6H12O6) required to produce 1.82 L of carbon dioxide gas at STP from the reaction?
A piece of lead is placed into a graduated cylinder. The level of the liquid rises from 235 to 305 mL. What is the mass in grams of the lead if the density of lead is 11.3g/cm3?
A truck is traveling at v0 = 60mph when the driver applies the brakes to come to a stop. The deceleration of the truck is constant and the truck comes to a complete stop after braking for a distance of 350ft.
What is the simplest formula for Chalcocite if a sample of this ore contains 8.274 g copper and 2.088 g sulfur?
The atomic mass of element X is 33.42 amu. A 21.83-g sample of X combines with 80.32 g of another element Y to form a compound XY. Calculate the atomic mass of Y.
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A client has a habit of mouthbreathing involving teeth 13-23. The tissue is red, swollen with a loss of stippling in that area and the radiographs reveal
Is training for first responders (law enforcement) an adequate enough response to treat with cognitive impairments and other brain disorder
Question: What is the BEST indicator for diagnosis of implant failure? Question options: presence of mobility pain around the implant plaque
Home irrigation devices designed for targeting direct subgingival delivery have a positive effect on subgingival microorganisms at probing
A client presents with a lateral radiolucency on the mesial root of tooth 46. There is a 6 mm pocket in that location and bleeding on probing
The dental hygienist uses a handheld syringe to irrigate the posterior molars following a deep debridement of 6 mm pockets.
Question: A client is using a toothpaste with postassium nitrate. What is the role of the potassium nitrate in this toothpaste?