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Alexus [3.1K]
3 years ago
14

Is baking soda a fine powder or is it coarse

Chemistry
1 answer:
sp2606 [1]3 years ago
8 0
Baking soda is a fine powder because when you touch it the baking soda is very soft
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Recall that the water pipes
Alina [70]

Answer:

Skaodbalz siunnqkqjddbs

6 0
3 years ago
How many grams of water can be cooled from 33 ∘c to 15 ∘c by the evaporation of 50 g of water? (the heat of vaporization of wate
Eva8 [605]

Answer: -

1595 g

Explanation: -

Heat of vaporization = 2.4 Kj/ g

Mass of water to be vaporized = 50 g

Heat released = Mass of water to be vaporized x Heat of vaporization

= 50 g x 2.4 KJ /g

= 120 KJ

= 120000 J

Initial temperature= 33+273= 306 K

Final temperature =15+273=288 K

Change in temperature required = T = 306 - 288 = 18 K

specific heat of water is 4.18 J / g K

Mass of water that can be cooled = Total heat / (specific heat of water x Change in temperature)

= 120000 J / ( 4.18 J / g K x 18 K)

= 1595 g

3 0
3 years ago
2C(s) + 2H2(g) + 52.4kJ ⇋ C2H4(g)
PtichkaEL [24]

Answer:

A. The equilibrium will shift towards the right, towards the formation of products

B. The concentration of hydrogen gas will decrease as more of it is used in the formation of products

C. Increasing the temperature at which the reaction is performed will increase the concentration of C2H4, the product of the reaction.

Explanation:

The given reaction is an exothermic reaction as it requires the addition of extra energy of about 52.4KJ in the form of heat for the reaction to proceed towards product formation.

According to L' Chtler principle, when an external constraint is applied to A given system in equilibrium, equilibrium position will shift so as to annul the effect ofnthe constraint imposed on the system.

Therefore, the answers tonthe questions above are given below as follows :

A. The equilibrium will shift towards the right, towards the formation of products in order to remove the effect of the additional heat since the forward reaction is endothermic.

B. The concentration of hydrogen gas will decrease as more of it is used in the formation of products .

C. Increasing the temperature at which the reaction is performed will increase the concentration of C2H4, the product of the reaction as the equilibrium will shift towards the right; formation of products.

3 0
3 years ago
If you are pulling on a box with a force of 30 N, and your friend is pushing the box in the same direction with a force of 30 N,
dmitriy555 [2]

Answer:

The box will move towards me by the additional force of 60N.

Explanation:

I am pulling the box with a force of 30N and my friend is pushing the box in the same direction with a force of 30N.

       Here two forces are exhibited in the same direction that is towards myself as a result the box will move towards me by an additional force of 30N+30N=60N.

7 0
3 years ago
Ice melting is not a chemical change because __________.
professor190 [17]

Answer:

I think the answer of the question is C?

3 0
3 years ago
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