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enyata [817]
3 years ago
10

I need help this is an important grade please help!!

Chemistry
1 answer:
beks73 [17]3 years ago
8 0
I’m sorry to say this but I don’t see any picture so I can help you out :(
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Lily replicates an experiment that found that the number of calories in a particular food is 50 kcal. She obtained data from
Tresset [83]

Answer:

invalid

Explanation:

Just imagine doing this experiment MULTIPLE TIMES and one of the trials you get 72 Kcal while in another u get 12kcal. It doesn't make sense. Somewhere in the experiment she went wrong. So its invalid

4 0
4 years ago
IF YOU DON'T ANSWER IT CORRECTLY OR IN AT LEAST A DECENT WAY< I WILL REPORT!!! I'm giving 30 points for this!!!!
pantera1 [17]

Answer:

Color Change.

Production of an odor.

Change of Temperature.

Evolution of a gas (formation of bubbles)

Precipitate (formation of a solid)

Chicken turning color

Explanation:

I have when i have put a mint in the coke and it exploded and then another is when i dyed my water purple for no reason and when i heat water it start do evaporate or bubble and water turning into ice and when you know  you cook chicken the chicken is pink then when you season the chicken it turn golden brown and when you put milk and cereal together and if you leave it in to long it get soggy.

7 0
3 years ago
with the help of balanced chemical equation explain what happens when zinc is put in dilute hydrochloric acid
blagie [28]
They react to form salt  ZnCl + hydrogen gas

3 0
3 years ago
The body’s pH is tightly regulated because specific enzymes function best within a narrow pH range. What is the approximate pH o
tatuchka [14]

Answer:

The answer to your question is pH = 9.08

Explanation:

Data

pH = ?

Concentration = 1.2 x 10⁻⁵ M

Process

1.- Calculate the pOH of the solution

Formula

   pOH = -log[OH⁻]

   pOH = -log[1.2 x 10⁻⁵]

   pOH = 4.92

2.- Calculate the pH

Formula

    pH = 14 - pOH

Substitution

    pH = 14 - 4.92

Result

    pH = 9.08    

5 0
3 years ago
If Steve throws a football 57 meters in 3 seconds, what is the average speed of the football?​
sattari [20]

Answer:

19 m/s

Explanation:

57/3

7 0
3 years ago
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