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zhenek [66]
3 years ago
15

Read temprature on thermometer i am confusion

Chemistry
1 answer:
balu736 [363]3 years ago
8 0

Answer:

a)22.2°C after adding magnesium

b)17.3°C before adding magnesium

c) 4.9 is change

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0.0524 moles of H2O equals how many molecules of water?
Charra [1.4K]
Hey there!:

<span>Use the Avogadro constant :
</span>
1 mole -------------- 6.02*10²³ molecules
0.0524 moles -------- molecules H2O

molecules H2O = 0.0524* ( 6.02*10²³) / 1

  molecules H2O = 3.15*10²² / 1

= 3.15*10²² molecules H2O




8 0
3 years ago
Read 2 more answers
What foods are broken down when an organism, in need of energy, undergoes cellular respiration?
disa [49]

Answer:

GLUCOSE aka SUGAR

Explanation:

<u>glucose</u><u> </u><u>-</u><u> </u><u>A</u><u> </u><u>simple</u><u> </u><u>sugar</u><u> </u><u>which</u><u> </u><u>is</u><u> </u><u>an</u><u> </u><u>important</u><u> </u><u>energy</u><u> </u><u>source</u><u> </u><u>in</u><u> </u><u>livong</u><u> </u><u>organisms</u><u> </u><u>and</u><u> </u><u>is</u><u> </u><u>a</u><u> </u><u>component</u><u> </u><u>of</u><u> </u><u>many</u><u> </u><u>carbohydrates</u><u>.</u>

Glucose, found in the food animals eat, is broken down during the process of cellular respiration into an energy source called ATP.

Hope this helped !

5 0
3 years ago
What's the functional group if ch3c2ch3oh​
Aneli [31]
Wait what

What


Huh




Kinda confused
3 0
3 years ago
Which set of elements has similar binding properties?
elena55 [62]

Answer:

B. K,Ca, and Sc

Explanation:

PLZ mark me as a BRAINLIEST

7 0
3 years ago
Which list BEST identifies how the arrows should be arranged around the paper leaf in the model to represent the movement of mat
Andrew [12]

Answer:

D. Point into Leaf: water(H₂O), carbon dioxide (CO₂) sunlight, Point away from leaf: Sugars, oxygen (O₂)

Explanation:

Photosynthesis is the process used in the production of chemical energy in the form of energy containing organic compounds and oxygen from atmospheric carbon dioxide and liquid water enabled with the energy captured from light (mainly Sunlight) by the chlorophyll in green plants and other organisms

The basic chemical reaction involved in a photosynthesis reaction is presented as follows;

{}                                    Sunlight

{}                                          ↓

{}       CO₂           +  H₂O (l)  →   C₆H₁₂O₆   +    O₂

Carbon dioxide {}  Water        Glucose       Oxygen    

8 0
3 years ago
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