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sweet [91]
3 years ago
10

Imagine you needed to identify if an object has undergone a physical change or a chemical change. What information would you nee

d to know, and how would you decide?
Chemistry
1 answer:
pishuonlain [190]3 years ago
7 0
How it looks. basically the thing that tells you how it change. for example if an ice cube was melted (heat), it only changed physically not chemically as the h20 molecules are still there. however lets say you burn woos— you cant get that would back. its ash now and it has changed chemically.
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2 years ago
How many electrons are in p orbitals in Si (Silicon)?
insens350 [35]

Answer:

6 electrons

Explanation:

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8 0
3 years ago
Which units are used to measure both velocity and speed? Select three options
Ede4ka [16]

Answer and Explanation:

The options aren't listed in your question, but here are some units that are regularly and normally used (in the classroom and in the outside world):

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<u>Meters per Second (m/s)</u>

kilometers per hour (km/hr)

kilometers per second (km/sec)

To find the average speed, you do distance divided by time.

To find the average velocity, you do the final position minus the initial position, divided by the final time minus the initial time.

<em><u>#teamtrees #PAW (Plant And Water)</u></em>

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8 0
3 years ago
Prepare a 0.50 L of a 1.0 M solution of potassium sulfate. Determine the amount of potassium sulfate needed in correct significa
Lera25 [3.4K]

Answer:

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3 0
3 years ago
How does the concentration of reactants affect the rate <br>of Chemical reaction? explain in short​
Neporo4naja [7]
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6 0
2 years ago
Read 2 more answers
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