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ELEN [110]
2 years ago
13

In an experiment, mixing baking soda and vinegar produced a combination of salty water and carbon dioxide shown in the following

graph. What is the combined mass of the baking soda and vinegar before mixing?
45 grams
55 grams
35 grams
450 grams
Chemistry
2 answers:
Cloud [144]2 years ago
8 0

Answer:

Explanation:

answer

guajiro [1.7K]2 years ago
7 0
The answer is ..... obviously lol
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An atom has three full orbitals in its second energy level.
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Orbitals am only hold two electrons each, so 3 orbitals can hold 6 electrons
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If have a volume of 18 L of a gas at a temperature of 272 K and a pressure of 90 atm, what will be the pressure of the gas if ra
Solnce55 [7]

Answer:

P₂ ≅ 100 atm (1 sig. fig. based on the given value of P₁ = 90 atm)

Explanation:

Given:

P₁ = 90 atm                    P₂ = ?

V₁ = 18 Liters(L)              L₂ = 12 Liters(L)      

=> decrease volume => increase pressure

=> volume ratio that will increase 90 atm is (18L/12L)                                                                  

T₁ = 272 Kelvin(K)          T₂ = 274 Kelvin(K)

=>  increase temperature => increase pressure

=> temperature ratio that will increase 90 atm is (274K/272K)

n₁ = moles = constant    n₂ = n₁ = constant

P₂ = 90 atm x (18L/12L) x (274K/272K) = 135.9926471 atm (calculator)

By rule of sig. figs., the final answer should be rounded to an accuracy equal to the 'measured' data value having the least number of sig. figs. This means P₂ ≅ 100 atm based on the given value of P₁ = 90 atm.

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2 years ago
Examples of gravitational potential energy.
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Answer:

the top of the roller coaster

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the roller coaster at the top when it has the most potential energy reaches Peak when its going to convert into kinetic energy

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Which ones are physical change and which ones are chemical reactions:
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Physical change- evaporation , condensation
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