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Bond [772]
3 years ago
13

Help me !!!! Can anyone solve it and send it to me plz.!!!!​

Chemistry
1 answer:
pychu [463]3 years ago
3 0

Answer:

(c) it must be N2 ( Nitrogen gas ) but not N

(h) it must be HNO3 ( Nitric acid ) but not HNO

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A serving of Frosted Flakes cereal contains 235,000 J of energy. Calculate the change in temperature (ΔT) that would occur if th
ira [324]

Answer:

55.95K

Explanation:

its obtained from Q=MCT where

Q-amount of heat

M-mass of water

C-specefic heat capacity of water

T-change in temperature

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3 years ago
During a storm, a tree fell over into a river . What might hqppen to this tree?
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You decide to make a copper bracelet for your friend. In order to do this you need to heat 29.2g of copper from 25 C to 275 C. C
motikmotik

Answer:

Amount of heat required = 2810.5 J

Explanation:

Given data:

Mass of copper = 29.2 g

Initial temperature = 25°C

Final temperature = 275°C

Amount of heat required = ?

Solution:

Specific heat capacity of copper is 0.385 j/g.°C.

Formula:

Q = m×c×ΔT

ΔT = 275°C - 25°C

ΔT = 250°C

Q = 29.2 g × 0.385 j/g.°C ×250°C

Q = 2810.5 J

7 0
3 years ago
Write the reaction of ammonia and water. Label the acid, base, conjugate acid and conjugate base.
rewona [7]

Explanation :

According to the Bronsted Lowry concept, Bronsted Lowry-acid is a substance that donates one or more hydrogen ion in a reaction and Bronsted Lowry-base is a substance that accepts one or more hydrogen ion in a reaction.

Or we can say that, conjugate acid is proton donor and conjugate base is proton acceptor.

The equilibrium reaction will be,

NH_3+H_2O\rightleftharpoons NH_4^++OH^-

In this reaction, NH_3 and H_2O are base and acid and NH_4^+ and OH^- are conjugate acid and conjugate base respectively.

Ammonia is a weak base because it accept proton from the water and gives fewer hydroxide ions.

4 0
4 years ago
How do the different spheres of earth interact?
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