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yan [13]
3 years ago
14

For each pair, predict which molecule has the greater molar entropy under the same conditions (assume gaseous species).c o 2, ca

rbon dioxide h 2 o, waterc o, carbon monoxide c o 2, carbon dioxide
Chemistry
1 answer:
larisa [96]3 years ago
8 0
I used to know this. I don't really remember but is used to know it. Im in 6th grade now
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When water becomes ice, the molecules spread out to form a specific shape. What determines this shape?
julia-pushkina [17]

Answer:

The state of the water molecule, when its ice it become a special crystallized structure.

Explanation:

5 0
3 years ago
The law of conversion states that mass is never created or destroyed. Explain how this law requires all chemical equations to be
ikadub [295]

Answer:

See Explanation

Explanation:

The Law of Conservation of Matter as applied to chemical reactions says that matter is neither created nor distroyed, only changed in form. This implies that the mass of substances going into a reaction process must equal the mass of products generated during the reaction process.

Empirically,

∑ mass reactants = ∑ mass products

One can test this idea after balancing a chemical equation by determining the sum of formula weights of reactants and products; then compare. If reaction was properly balanced, the total mass reactants = total mass of products.

Example:

Combustion of Methane =>  CH₄(g) + 2O₂(g)   =>  CO₂(g) + 2H₂O(l)

Equation Weights =>             16amu + 64amu <=> 44amu +  36amu

Mass Reactants = Mass Products  => 80amu <=> 80amu.

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*amu = atomic mass units => sum of atomic weights of elements

3 0
3 years ago
A hypothesis explains what the scientist thinks will happen during the experiment.
igor_vitrenko [27]

answer: it is true because a hypothesis is something you think will happen during a experiment

explained: I took the test

4 0
2 years ago
Consider the following reaction. Zn(s) 2agno3(aq) --&gt; 2ag(s) zn(no3)2(aq)when 16. 2 g of silver was produced, _____ mole(s) o
Crazy boy [7]

The required amount of silver nitrate to produce 16.2g of silver is 25.48 grams.

<h3>What is the relation between mass & moles?</h3>

Relation between the mass and moles of any substance will be represented as:

n = W/M, where

  • W = given mass
  • M = molar mass

Moles of silver = 16.2g / 107.8g/mol = 0.15mol

From the stoichiometry of the given reaction it is clear that, same moles of silver nitrate is required to produce same moles of silver. So 0.15 moles of silver nitrate is required.

Mass of silver nitrate = (0.15mol)(169.87g/mol) = 25.48g

Hence required mass of silver nitrate is 25.48g.

To know more about mass & moles, visit the below link:

brainly.com/question/19784089

#SPJ4

5 0
2 years ago
Explain the method to decrease friction?
Nookie1986 [14]

Answer:

having a smooth or lubricated surface may help decrease friction.

Explanation:

5 0
2 years ago
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