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Setler [38]
3 years ago
12

Which of the following always changes when a substance undergoes a chemical change?

Chemistry
2 answers:
vovangra [49]3 years ago
6 0

Answer:

A. State of matter of the substance.

Explanation:

During a chemical change, the composition of matter always changes.

amm18123 years ago
6 0

Answer:

I would say C.

Explanation:

My best bet is C but in all honesty, i have no clue. -hope my non-helping helped :D

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When the pH of an aqueous solution is 8, what is the OH- ion concentration in moles per liter?
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D. 12 is 1 × 10-6

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8 0
3 years ago
I need to make up an experiment !! Please help
katen-ka-za [31]

Question: Baking a Cake Without Flour.

Hypothesis: I think that when I remove the flour from the standard cake recipe, I'll end up with a flat but tasty cake.

Procedure: I baked two cakes during my experiment. For my control, I baked a cake following a normal recipe. I used the Double Fudge Cake recipe on page 292 of the Betty Crocker Cookbook. For my experimental cake, I followed the same recipe but left out the flour. I first obtained a 2-quart mixing bowl.  

Results: My control cake, which I cooked for 25 minutes, measured 4 cm high.  Eight out of ten tasters that I picked at random from the class found it to be an acceptable dessert. After 25 minutes of baking, my experimental cake was 1.5 cm high and all ten tasters refused to eat it because it was burnt to a crisp.

What did I learn?/Conclusion: Since the experimental cake burned, my results did not support my hypothesis.  I think that the cake burned because it had less mass, but cooked for the same amount of time.  I propose that the baking time be shortened in subsequent trials.

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I hope this helped :))

7 0
3 years ago
Which process of making a stainless steel product does the photograph
Delvig [45]
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5 0
3 years ago
Read 2 more answers
How do you tell if an element is a solid, liquid or gas (ex. Na2S)
svetoff [14.1K]
Solids have a definite shape, and a definite volume.
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Gas have neither a definite volume nor a definite shape.

Hope this helps!
4 0
3 years ago
Read 2 more answers
2. What is the electron configuration of an electrically neutral atom of magnesium?
alekssr [168]
Are u talking about electron sublevel config or where the electrons show in the "rings" of the atom
7 0
4 years ago
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