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Brilliant_brown [7]
3 years ago
12

Which chemical equation is balanced.​

Chemistry
1 answer:
Tresset [83]3 years ago
7 0

Answer:

Explanation:

D Option is balanced

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How many calories are absorbed in a process that absorbs 0.128 joules?
earnstyle [38]

Answer:

There are 0.0305 calories in 0.128 joules

Explanation:

Given that,

Heat absorbed, Q = 0.128 J

We need to find the heat energy absorbed in calories.

We know that the relation between joules and calories is as follows :

1 calorie = 4.184 J

1 J = (1/4.184) J

So,

0.128\ J=\dfrac{0.128 }{4.184}\\\\=0.0305\ cal

So, there are 0.0305 calories in 0.128 joules

7 0
3 years ago
3.50 liters of a gas at 727.0 K will occupy how many liters at 153.0 K?
miv72 [106K]

Answer:

0.737 L

Explanation:

Charles law states for a fixed amount of gas, volume of the gas is directly proportional to the absolute temperature of the gas at constant pressure

we can use the following equation

V1/T1 = V2/T2

where V1 is volume and T1 is temperature at first instance

V2 is volume and T2 is temperature at the second instance

substituting the values

3.50 L / 727.0 K = V2 / 153.0 K

V2 = 0.737 L

new volume at 153.0 K is 0.737 L

8 0
4 years ago
Which group on the periodic table contains chemical elements that are shiny and conduct electricity?
olga_2 [115]
D. Metals
Elements that are shiny, solid, conducts electricity, has atomic mass of 108 is metal.
4 0
3 years ago
Help me please fast
Brrunno [24]

Answer:

Alkenes are those organic compound which have double carbon bond

Formula of but-2-ene = C4H8

5 0
3 years ago
When a kettle is placed on the stove and water begins to boil, the hotter water at the bottom begins to rise and the cooler wate
melisa1 [442]
I think the correct answer from the choices listed above is option A. The fact that we know about the relationship between the hotter water and the cooler water would be that the <span> hotter water is less dense. Hope this answers the question. Have a nice day.</span>
3 0
3 years ago
Read 2 more answers
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