Which of the following statements about batteries is false? Lithium–iodine batteries have low current, but extremely...

Which of the following statements about batteries is false? Lithium–iodine batteries have low current, but extremely long life. Lead storage batteries contain lead at the anode and lead coated with lead dioxide at the cathode. It is not safe to recharge a nickel–cadmium battery. A fuel cell is a galvanic cell for which the reactants are continuously supplied. Dry cell batteries are used in flashlights and portable radios.

Solutions

Expert Solution

Which of the following statements about batteries is false?

Lithium–iodine batteries have low current, but extremely long life.

Lead storage batteries contain lead at the anode and lead coated with lead dioxide at the cathode. -------CORRECT

It is not safe to recharge a nickel–cadmium battery.-FALSE

A fuel cell is a galvanic cell for which the reactants are continuously supplied. ----------CORRECT

Dry cell batteries are used in flashlights and portable radios.---------CORRECT

================

A battery contains electrochemical cells that can store synthetic vitality to be changed over to electrical vitality. A dry-cell battery stores vitality in an immobilized electrolyte glue, which limits the requirement for water. Basic cases of dry-cell batteries incorporate zinc-carbon batteries and soluble batteries.

queen_honey_blossom answered 2 years ago

Next > < Previous

Related Solutions

Which of the following statements about receptor potentials is FALSE?

Which of the following statements about receptor potentials is FALSE? A. They are changes in the resting membrane potential of a sensory cell in response to a stimulus. B. The receptor potential spreads from the cell body of a sensory cell to the axon hillock, where action potentials can be generated C. One receptor potential always prompts the release of a neurotransmitter that induces an associated neuron to generate an action potential. D. They must be converted into action potentials...

Which of the following statements about the nuclear envelope is FALSE?

Which of the following statements about the nuclear envelope is FALSE? A. It is composed of two membranes (a double membrane) B. Unlike other membranes in the cell, it primarily consists of complex polysacchrides such as cellulose C. It is supported by a cytoskeletal network known as nuclear lamina D. It contains pores for the passage of large molecules E. It contains the chromosomal DNA of eukaryotic cells

Which of the following statements about codes of conduct is false? -They are formal statements of...

Which of the following statements about codes of conduct is false? -They are formal statements of what an organization expects of its employees. -They guarantee an ethical business climate. -They help employees determine what behaviors are acceptable. -They provide rules and guidelines for employees to follow. -They should be specific enough to be reasonably capable of preventing misconduct. ____________________________________________________________________________________________________ While ideally the board of directors financial audit committee conducts ethics audits, in most firms they are conducted by: -managers or...

19. Which of the following statements is false? a. certain vegetarian diets may be low...

19. Which of the following statements is false? a. certain vegetarian diets may be low in some vitamins and minerals b. all food allergies are the consequence of additives to foods c. antioxidants react with free radicals d. fiber may be considered soluble or insoluble 20. A type of fat which tends to be found in animal fat, and to be solid at room temperature is a. saturated b. monounsaturated c. polyunsaturated ...

Which of the following statements about perfect price discrimination is false?

Which of the following statements about perfect price discrimination is false?A condition for perfect price discrimination is that it must be costlier to service some customers than others.There is no consumer surplus if a firm engages in perfect price discrimination.For the price-discriminating firm, its marginal revenue curve coincides with its demand curve.Perfect price discrimination occurs when the seller charges the highest price each consumer would be willing to pay for the product.

Which of the following statements about neural signaling is FALSE? Action potentials have a refractory period....

Which of the following statements about neural signaling is FALSE? Action potentials have a refractory period. The ability to generate action potentials allows one end of a long axon (e.g., 2 meters in length) to receive signals from the other end despite other despite the very short distances (<5 mm) that signals can travel passively along the axon. The intensity of a signal activating a neuron is coded by the amplitude of the action potentials its axon conducts. Axons must...

Are the following statements true or false? (a) Only about 80% of the current revenues flowing...

Are the following statements true or false? (a) Only about 80% of the current revenues flowing into the Social Security system are needed for benefit payments to current retirees. (b) Between 1980 and 2010, most of the social security surplus was used to reduce the national debt. (c) Changes in demographic conditions during the next two decades will be favorable to the Social Security system.

Decide which of the following statements are True and which are False about equilibrium systems: If...

Decide which of the following statements are True and which are False about equilibrium systems: If K = 8 for the reaction A + B ⇌ C + D, K will equal -8 for the reaction C + D ⇌ A + B For a reaction with K >> 1, the rate of the forward reaction is less than the rate of the reverse reaction at equilibrium. The value of K at constant temperature does not depend on the amounts...

Decide which of the following statements are True and which are False about equilibrium systems: The...

Decide which of the following statements are True and which are False about equilibrium systems: The value of K at constant temperature depends on the amounts of reactants and products that are mixed together initially. For a reaction with K >> 1, the rate of the forward reaction is less than the rate of the reverse reaction at equilibrium. A large value of K means the equilibrium position lies far to the left. For the following reaction: CaCO3(s) ⇌ CaO(s)...

Which of the following statements about responsibility centers is FALSE? 1. Responsibility centers usually have one...

Which of the following statements about responsibility centers is FALSE? 1. Responsibility centers usually have one goal. 2. Management control systems monitor responsibility center goals. 3. Responsibility centers are usually classified according to their managers' primary financial responsibility. 4. Cost centers, profit centers and investment centers are all examples of responsibility centers.

Subjects