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Dominik [7]
3 years ago
8

Heeeelp its due TODDAYYYY PLZZZ ASAP :)

Chemistry
1 answer:
sergiy2304 [10]3 years ago
6 0

Answer: C

Explanation:

I would look it up on safari just to be safe tho

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Drag the correct label to the pictures. Each label can be used more than once. Classify the materials based on their composition
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You heat 3.869 g of a mixture of fe3o4 and feo to form 4.141 g fe2o3. What is the mass of oxygen reacted?
Lostsunrise [7]

The reaction is  

FeO + Fe3O4 + 1/2 O2---> 2Fe2O3

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5 0
4 years ago
Explain, in detail, how you convert grams of one substance to grams of something else. Be specific and include each step
elena-14-01-66 [18.8K]
I will present a simple reaction so we can do this conversion:

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32 g O₂ ÷ 32 g/mol = 1 mole O₂.

Now that we have moles of oxygen, we use the molar coefficients to find the ratio of water molecules to oxygen molecules. We can see there are 2 moles of water for every 1 mole of oxygen.

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Now that we have the moles of water, we can convert this amount into grams using the molar mass of water, which is 18 g/mol.

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What is the cell membrane?
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