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TiliK225 [7]
2 years ago
14

Directions: Identify each chemical equation as a synthesis, decomposition,

Chemistry
1 answer:
bija089 [108]2 years ago
8 0

Answer: 9. decomposition 10. single displacement 11. synthesis 12. double displacement

Explanation: just know I know

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A I think

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3 years ago
The standard heat of formation for solid copper is zero. True False
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The element californium (cf) sells for $1000 per µg. assuming 6.02 x 1023 atoms of cf have a mass of 251 grams, how many atoms o
saveliy_v [14]

Answer:- 2.40*10^1^0atoms

Solution:- It is a simple unit conversion problem. We could solve this using dimensional analysis.

We know that, 1 US dollar = 100 cents

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So, 1 US dollar = 100 US pennies

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Let's make the set up starting with 1 penny as:

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= 2.40*10^1^0atoms

Therefore, we can bye 2.40*10^1^0atoms of Cf in one US penny.

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3 years ago
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