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Alex_Xolod [135]
4 years ago
6

For many purposes we can treat propane

Chemistry
1 answer:
dangina [55]4 years ago
3 0

Answer:The volume increases by 11%

Explanation:

When the pressure is decreased, the volume must definitely increase, to maintain the same pressure, the temperature must then also be increased as we see in the question. The volume was increased just as the pressure decreased and the temperature had to be increased to maintain a constant pressure. We have applied the general gas equation in solving the problem.

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What does a branching tree diagram show?
ollegr [7]

Answer:

B. The order in which specific traits may have evolved

Explanation:

4 0
3 years ago
The ph of lemon juice is approximately 2.40. at this ph, the hydronium ion concentration is closest to which concentration? 4.0
swat32
pH = -log[H₃O⁺(aq)]

here the pH is given as 2.40.

Hence,
  2.40               = -log[H₃O⁺(aq)]
log[H₃O⁺(aq)]  = -2.40
[H₃O⁺(aq)]       = 3.98 x 10⁻³ M
                        = 4.0 x 10⁻³ M

Hence, the hydronium ion concentration in juice is 4.0 x 10⁻³ M.

Since, the pH is less than 7, the juice is acidic.
8 0
3 years ago
When studying the movement of heat,what does the term "system" refer to? What does "surroundings" refer to?
Lana71 [14]

 

When studying the movement of heat, what does the term "system" refer to any quantity of matter of fixed identity of the chosen study. “Surroundings" refer to the rest of the universe beyond the boundary of your chosen study or system.

8 0
3 years ago
What is the chemical formula of the salt produced by the neutralization of potassium hydroxide with sulfuric acid? A. KSO3 B. K2
Lunna [17]

Answer : The correct option is, (C) K_2SO_4

Explanation :

Neutralization reaction : It is a type of chemical reaction in which an acid react with a base to give salt and water as a product that means it reacts to give a neutral solution.

Balanced chemical reaction : It is defined as the reaction in which the number of atoms of individual elements present on reactant side must be equal to the product side.

When potassium hydroxide react with sulfuric acid then it react to give potassium sulfate (salt)and water as a product.

The balanced chemical reaction will be:

2KOH+H_2SO_4\rightarrow K_2SO_4+2H_2O

The species present on the left side of the right arrow is the reactant and the species present on the right side of the right arrow is the product.

In the balanced chemical reaction,

KOH and H_2SO_4 are reactants.

K_2SO_4 and H_2O are products.

Hence, the chemical formula of the salt produced by the neutralization of potassium hydroxide with sulfuric acid is, K_2SO_4

5 0
3 years ago
Read 2 more answers
Describe how vitamin A may be used in the body​
PilotLPTM [1.2K]

Answer:

Vitamin A is important for normal vision, the immune system, and reproduction. Vitamin A also helps the heart, lungs, kidneys, and other organs work properly. There are two different types of vitamin A. The first type, preformed vitamin A, is found in meat, poultry, fish, and dairy products.

3 0
3 years ago
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