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Vinvika [58]
3 years ago
10

Post- Assessment:

Chemistry
1 answer:
joja [24]3 years ago
6 0

Answer:

the answer is C

I just took the test

Explanation:

❤♥♥❤♥♥

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Sha-vzwq-aby<br><br> Ladkiyoooooo aaa jaooo♡♥︎♡<br><br> Jaldiiiii karo na yaaaar
leva [86]

Answer:

kjajjahahayq :/

Explanation:

a sbywsbgv usnwbhx hg xw nx hb gs

5 0
3 years ago
Read 2 more answers
Methane reacts with chlorine in the presence of ultraviolet light
earnstyle [38]

Answer:

When a mixture of methane and chlorine is exposed to ultraviolet light - typically sunlight - a substitution reaction occurs and the organic product is chloromethane. CH 4 + Cl 2 → CH 3 Cl + HCl However, the reaction doesn't stop there, and all the hydrogens in the methane can in turn be replaced by chlorine atoms.

Explanation:

hope it help i try best

7 0
3 years ago
Name seven characteristics that can be used to define a mineral
PIT_PIT [208]
Solid
, Inorganic,
Naturally Orcurring,
Defintite
Chemical Compostion,
Definite Crystalline Structure

5 Physical Properties

Hardness,
Color,
Crystal Shape,
Streak
7 0
3 years ago
If the CaCO3 weighed 983 g and the CaO weighed 551 g, how many grams of CO2 were formed in the reaction?
stira [4]

Answer:

The answer to your question is 432 g of CO₂

Explanation:

Data

CaCO₃  = 983 g

CaO = 551 g

CO₂ = ?

Balanced reaction

                               CaCO₃ (s)   ⇒   CaO (s)   +  CO₂ (g)

This reaction is balanced, to solve this problem just remember the Lavoisier Law of conservation of mass that states that the mass of the reactants is equal to the mass of the products.

                    Mass of reactants = Mass of products

                    Mass of CaCO₃   = Mass of CaO + Mass of CO₂

Solve for CO₂

                    Mass of CO₂  = Mass of CaCO₃ - Mass of CaO                    

                     Mass of CO₂ = 983 g - 551 g

Simplification

                     Mass of CO₂ = 432 g                        

         

5 0
3 years ago
In this salt water floating egg experiment, how will you use these calculations to find the density of the egg? I’m really confu
Agata [3.3K]

Glass 1 Freshwater  

The egg went directly to the base of the glass. Consequently it has sunk and did not drift  

237.0  

237 (1 glass)  

1.000

Glass 2  

Water with 2 teaspoons of salt  

A similar outcome for glass 2 as container 1 when egg was set into the container it sank to the base.  

248.4  

237  

1.048

Glass 3  

Water with 3 teaspoons of salt  

In reference to glass 1 and 2 the egg sank to the base for a third time.  

254.1  

237  

1.072  

Glass 4  

Water with 4 teaspoons of salt  

The egg remained gliding to where a little bit of the egg was standing out on the top, and when pushed down the egg returned up.  

259.8  

237  

1.096

Hope this helps!

5 0
3 years ago
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