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nordsb [41]
3 years ago
13

Which of these provides evidence that a chemical reaction occurs?

Chemistry
1 answer:
harkovskaia [24]3 years ago
7 0

Answer:

Color change, Temprature change, Odor change, Effervescence (Bubbles)

Explanation:

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There is 35 mg of sodium in a can of Coke. You determine it to be 28 mg. What is your percent error?
natali 33 [55]

Answer:

The answer is

<h2>20 %</h2>

Explanation:

The percentage error of a certain measurement can be found by using the formula

P(\%) =  \frac{error}{actual \:  \: number}  \times 100\% \\

From the question

actual volume = 35 mg

error = 35 - 28 = 7

The percentage error is

P(\%) =  \frac{7}{35}  \times 100 \\  =  \frac{1}{5}  \times 100 \\  =  20

We have the final answer as

<h3>20 %</h3>

Hope this helps you

8 0
3 years ago
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Injecting salt crystals over the ocean to grow cloud droplets has been proposed in efforts to make the clouds __________ thereby
anastassius [24]
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7 0
3 years ago
What types of objects are using electricity in your home today?
EleoNora [17]

Lamp, tv, refrigerator, Lights, phone, microwave,  surround sound, cameras, motion sensors, chandelier, pool, hot tub, heated floors, the smart home stuff,  aquarium stuff, and whatever the staff uses.

3 0
3 years ago
As the speed of a particle increases, does its associated wavelenght increase or decrease
Zina [86]

The de Broglie hypothesis proposed that all particles have wave-like properties, with the wavelength being inversely proportional to the velocity of the particle.


Therefore as the velocity (speed in this question) increases, the wavelength *decreases*.

7 0
3 years ago
What is it called when a gas is converted into a liquid
alex41 [277]
Your answer is probably
Vaporization point
3 0
3 years ago
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