A substance that increases the rate of a chemical reaction but is not consumed in the reaction is called

a. an oxidizing agent.
b. a catalyst.
c. an activation agent.
d. a reducing agent.


b

Physics & Space Science

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T Tauri stars are believed to be young, high-mass main-sequence stars

a. True b. False Indicate whether the statement is true or false

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When there is a 5.00 A current through an 10.0-? device, how much power is being dissipated in the device?

A) 50.0 W B) 250 W C) 500 W D) 2.50 kW

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A(n) ______________ consists of many narrow parallel slits very close together

Fill in the blank(s) with correct word

Physics & Space Science

Kepler's first law is about planets orbiting a host star in the shape of an ellipse with the host star at the center of the ellipse

a. True b. False Indicate whether the statement is true or false

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