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Sloan [31]
3 years ago
13

Taylor mixed two liquids together in a beaker. The beaker quickly heated up. What does this indicate about the reaction that too

k place in the beaker?
A. that there was no energy transfer
B. that energy was created
C. that energy was transformed
D. that energy was destroyed
Chemistry
2 answers:
amm18123 years ago
6 0

Answer: c

Explanation:energy cannot be made or destroyEd according to a law of energy

Natasha2012 [34]3 years ago
4 0

Answer:

<em>The answer is C. that energy was transformed</em>

Explanation:

<em>Hope this helped!</em>

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A 2.5 mg sample of magnesium powder is ignited with 2 mg oxygen in a sealed container. All of the magnesium is consumed and 4.15
lys-0071 [83]

Answer:

Total mass of the reactant = 2+2.5 =4.5 mg

Total mass of product = 4.15 mg

therefore, mass of unreacted oxygen = 4.50-4.15 = 0.35 g

7 0
3 years ago
Determine the compound type for the following formulas: C12H22011 Mg(OH)2 H20 Cu3Zn2 Au <br>​
Scorpion4ik [409]

Answer:

C12H22O11  

✔ covalent

Mg(OH)2    

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H2O    

✔ covalent

Cu3Zn2    

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Au      

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Explanation:

7 0
3 years ago
Read 2 more answers
Could someone help me with all of these questions. Also plz if you don't know the answer plz don't put something that isn't righ
densk [106]
Q3.) acidic
q4.)that the solution is acidic
q5.)that the solution is alkaline
3 0
3 years ago
Please help make sure its correct thanks
Wewaii [24]

The empirical formula of metal iodide : CoI₃(Cobalt(III) Iodide)

<h3>Further explanation</h3>

13.02 g sample of Cobalt , then mol Co(MW=58.933 g/mol) :

\tt mol=\dfrac{mass}{Ar}=\\\\mol=\dfrac{13.02~g}{58.933}\\\\mol=0.221

Mass of metal iodide formed : 97.12 g, so mass of Iodine :

\tt =mass~metal~iodide-mass~Cobalt\\\\=97.12-13.02\\\\=84.1~g

Then mol iodine (MW=126.9045 g/mol) :

\tt \dfrac{84.1}{126.9045}=0.663

mol ratio of Cobalt and Iodine in the compound :

\tt 0.221\div 0.663=1\div 3

5 0
2 years ago
The results of a classroom group activity performed to test the acidic or basic nature of two substances are shown in the table.
zvonat [6]
Substance a is a base, and substance b is an acid
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3 years ago
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