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Natalka [10]
3 years ago
13

Help me with this please!!! Smart ones help me 18 points

Chemistry
2 answers:
Temka [501]3 years ago
7 0
1/2 is the odds of picking a quarter.  Since there are 3 quarters and 3 dimes, add them together and you get 6.  3/6 is equal to 1/2.
Helen [10]3 years ago
4 0
Hey! The answer would be 1/2.
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Burning soybean oil is similar to what other chemical reaction?
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Reactants are<br> What you start with<br> What you end with
Naya [18.7K]

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3 0
3 years ago
How will adding NaCl affect the freezing point of a solution?
lord [1]

Answer is: adding NaCl will lower the freezing point of a solution.

A solution (in this example solution of sodium chloride) freezes at a lower temperature than does the pure solvent (deionized water).

The higher the solute concentration (sodium chloride), freezing point depression of the solution will be greater.

Equation describing the change in freezing point:  

ΔT = Kf · b · i.

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i - Van’t Hoff Factor.

Dissociation of sodium chloride in water: NaCl(aq) →  Na⁺(aq) + Cl⁻(aq).

3 0
3 years ago
Read 2 more answers
Please help with 3 and 4
mafiozo [28]
3. volume of gas because its changing because of the temperature
4. 67.6 breaths per minute
     65+73+67+71+62=338/5=67.6
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7 0
3 years ago
1. Classify rust:
Arisa [49]
1. Rust, or Fe2O3, is a Chemical Compound.

2. Carbon is a Chemical Element found as C on the periodic table.

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If I helped you out, I would greatly appreciate if you went through my other answers I gave you and gave them the brainliest answer :)
7 0
3 years ago
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