Bimetallic strip over a flame, the strip was straight. When she placed the bimetallic strip in the flame, the strip started peat and Temperature Question & Answer
l. A teacher was using
an instrument
made of two metals called a bimetallicstrip. Before she held the
to curl. The curl formed because of different expansions of the metals.
Bimetallic
Strip
Metal. A
Metal B
Which best describes the expansion of the metals?
A. Metal A expanded more rapidly than Metal B.
B. Metal B contracted more rapidly than Metal A.
C. The average kinetic energy of Metal B increased more than Metal A.
D. The average potential energy increased more for Metal A than Metal B.

B.

Explanation: Metal B contacted more rapidly then Metal A.

1.consider the following balanced equation and answer parts a through. show calculations for each part.  

3 ag(s) + 4 hno3(aq) → 3 agno3(aq) + no(g) + 2 h2o(l)  

a. calculate the number of moles of agno3 produced by the reaction of 3 moles of ag with excess hno3. if the number to the left of the compound represents the number of moles of the compound which are present, then 3 moles of ag react with 4 moles hno3 to produce 3 moles agno3 (aq).

so the answer to a would be 3 moles.

b. calculate the number of moles of agno3 produced by the reaction of 108 grams of ag with excess hno3.  

i'm not sure how to plug in the grams of silver into an equation using moles to find how many moles are produced.

c. calculate the number of grams of agno3 produced by the reaction of 108 grams of ag with excess hno3  

d. calculate the number of moles of no produced as a byproduct of the reaction of 108 grams of ag with excess hno3.  

e. calculate the number of grams of no produced as a byproduct starting with 108 grams of ag and excess hno3.  

explanation:

2b2t

explanation:

2b2t