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Anna71 [15]
2 years ago
7

14. The following are a list of the four parts of John Dalton's atomic theory Indicate which of

Chemistry
1 answer:
Damm [24]2 years ago
5 0

Answer:

1

all matter is made of tiny particles called atom

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20 ml each of oxygen and methane are allowed to react when the reaction is completed.  The system now contains
Mekhanik [1.2K]

Answer:

CH4(g)+2O2(g)→CO2(g)+2H2O(l).

5 0
3 years ago
What are inside of cars so hot when left in the sun
Naya [18.7K]

Answer:

metalllll/material

Explanation:

you know how dark shirts absorb the sun heat well its practically the same just with material.

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Cars warm up in the sun due to the greenhouse effect: Sunlight passing through the windows into the car is mostly absorbed by interior surfaces, then radiated back to the air as heat. ... “As a consequence, the inside of the car will warm because radiation is coming in but not much is going back out.”Jul 27, 2009

Curiosities: Does a dark-colored car heat up more in the sun than a ..."

8 0
3 years ago
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Calculate the empirical formula for DCBN, given that the percent composition is 48.9%C, 1.76%H, 41.2%Cl, and 8.15%N.
sweet [91]

Answer:

empirical formula is C7H3NCl2

Explanation:

too much work too explain and im lazy

5 0
3 years ago
How are parentheses used in chemical formulas
Liula [17]
They make the symbols individual
6 0
3 years ago
I’m struggling with dimensional analysis in chemistry! Will someone please help me with .74 Kcal/min to cal/sec ? Explain and gi
valina [46]

Answer:

            12.33 cal/sec

Explanation:

As we know,

                          1 Kcal  =  1000 cal

So,

                     0.74 Kcal  =  X cal

Solving for X,

                      X =  (0.74 Kcal × 1000 cal) ÷ 1 Kcal

                      X =  740 cal

Also we know that,

                      1 Minute  =  60 Seconds

Therefore, in order to derive cal/sec unit replace 0.74 Kcal by 740 cal and 1 min by 60 sec in given unit as,

                                       = 740 cal / 60 sec

                                       = 12.33 cal/sec

3 0
3 years ago
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