The balanced chemical equation for the reaction between copper(II) sulfate and ammonium sulfide is CuSO4 + (NH4)2S → CuS + (NH4)2SO4.
The balanced chemical equation for the reaction between copper(II) sulfate and ammonium sulfide is:
CuSO4 + (NH4)2S → CuS + (NH4)2SO4
This equation shows that when copper(II) sulfate (CuSO4) reacts with ammonium sulfide ((NH4)2S), copper(II) sulfide (CuS) and ammonium sulfate ((NH4)2SO4) are formed.
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The chemical reaction between copper(II) sulfate and ammonium sulfide producing copper(II) sulfide and ammonium sulfate is balanced when written as CuSO4 + (NH4)2S → CuS + (NH4)2SO4. This adheres to the principle of conservation of mass, ensuring an equal number of each type of atom on both sides.
The balancing chemical equation in question, copper(II)sulfate + ammonium sulfide = copper(II) sulfide + ammonium sulfate, starts off with the substances copper(II) sulfate and ammonium sulfide on the left side of the equation. In the process being described, these compounds engage in a chemical reaction, resulting in the formation of new substances, copper(II) sulfide and ammonium sulfate, which are represented on the right side of the equation. The balanced form of this equation is: CuSO4 + (NH4)2S → CuS + (NH4)2SO4.
An important concept in Chemistry is the principle of conservation of mass, which states that the total mass of substances does not change during a chemical reaction. Therefore, for a chemical equation to be balanced, there must be an equal number of each type of atom on both the left and right sides of the equation.
Applying this to the equation, we have 1 atom of copper (Cu), 1 atom of sulfur (S), 4 atoms of oxygen (O), 2 atoms of nitrogen (N), and 8 atoms of hydrogen (H) on both sides of the equation, which confirms that it is properly balanced.
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B. Soda mixed with the pizza sauce and sped up digestive enzyme activity.
C. Soda raised the pH in his stomach and sped up digestive enzyme activity.
D. Soda lowered the pH in his stomach and slowed digestive enzyme activity.
2. Which factor decreases the rate of a chemical reaction?
A. An inhibitor
B. A co-factor
C. Increased substrate
D. Cold temperature
3. Which component decreases the activation energy of a chemical reaction?
A. An inhibitor solution
B. Presence of an enzyme
C. Lower substrate concentration
D. Neutral pH levels
4. A biologist adds a vitamin solution to an enzyme/substrate solution that requires co-factors. What will happen to the substrate?
A. The vitamins will bond to the enzymes and increase their reactivity with the substrates.
B. The vitamins will bond to the enzymes and decrease their reactivity with the substrates.
C. The substrate molecules will bond to the vitamin molecules and inhibit bonding of the enzyme.
D. The substrate molecules will bond to the vitamin molecules and stimulate bonding of the enzyme.
5. Jennifer stews peaches to make peach jelly. She believes the homemade jelly will make a healthy treat full of vitamins and enzymes her body needs. Which of the following disproves her prediction?
A. The peaches don't contain enzymes.
B. The jelly has too much sugar to be healthy.
C. The enzymes in the peaches have denatured.
D. The vitamins in the peaches will inhibit the enzymes.
6. What statement best describes what happens during the catalytic cycle?
A. The enzyme breaks the substrate apart to prepare for the reaction.
B. The enzyme positions the substrate to increase access during a reaction.
C. The substrate uses enzyme energy to start the reaction.
D. The active site releases the substrate and replaces it with an inhibitor.
Answer 1) Option D) Soda lowered the pH in his stomach and slowed digestive enzyme activity.
Explanation : Consuming soda after eating pizza lowered the pH of the stomach which consequently, slowed the digestive enzyme activity in the stomach. The enzymes actively digest the food only in highly acidic environment.
Answer 2) Option A) An inhibitor
Explanation : An inhibitor is a substance usually added to a progressing chemical reaction to decrease the rate of reaction and finally stop the reaction.
Answer 3) Option B) Presence of an enzyme
Explanation : When an enzyme is added to a chemical reaction it is often seen that it lowers the energy of activation and catalyzes the reaction. So, enzyme acts as a catalyst and increases the reaction rate.
Answer 4) Option A) The vitamins will bond to the enzymes and increase their reactivity with the substrates.
Explanation : When the biologists adds a vitamin solution to an enzyme or a substrate solution the bonding will take place between vitamins and enzymes and as a result it will increase the reactivity of the substrates.
Answer 5) Option C) The enzymes in the peaches have denatured.
Explanation : When enzymes are stewed or rather boiled they become denatured and the bonds between them breaks, which makes the enzyme useless. Hence, proteins should be eaten raw without boiling at higher temperatures.
Answer 6) Option A) The enzyme breaks the substrate apart to prepare for the reaction.
Explanation : In a catalytic reaction the enzymes usually break the substrate and create more surface area for the reaction to occur.
Answer: Electron has almost no mass.
Explanation:
Mass is defined as the actual matter that is contained in a substance. At an atomic level, it is expressed in atomic mass units.
The given options are the 3 subatomic particles.
Mass of the given subatomic particles are:
Proton = 1.007276u
Neutron = 1.008664u
Electron = 0.0005485u
Mass of neutron is slightly more than the mass of proton.
From the above information, it is visible that electron has a negligible mass.
Hence, the correct answer is electron.
Answer:
Electron has almost no mass.
Explanation:
be (in grams)?
I legitimately think it's 87.3 grams
Answer:
The correct answer is because they work at different pH levels.
Explanation:
The pH varies because the different enzymes secreted in the stomach work at different pH levels. Gastric secretion is the most important stage of digestion since when the food comes into contact with a low pH and the enzymes present, they dissociate it and denature the proteins present.
Have a nice day!
In chemistry we like the number of atoms or molecules in moles.
If one mole is equal to 6.02*10^23 atoms and you have 9.00 *10^23 atoms then how many moles do you have?
Answer;
= 1.495 moles
Explanation;
-One mole contains 6.02 ×10^23 particles
Therefore;
1 mole = 6.02 ×10^23 atoms
Thus; 9.00 ×10^23 atoms will have;
= 9.00 ×10^23 atoms / 6.02 ×10^23 atoms
= 1.495 moles
Answer:
2.49
⋅
10
−
12
moles Pb
Explanation:
Before doing any calculations, it's worth noting that atoms do not contain moles, it's the other way around.
A mole is simply a collection of atoms. More specifically, you need to have exactly
6.022
⋅
10
23
atoms of an element in order to have one mole of that element - this is known as Avogadro's number.
In your case, you must determine how many moles of lead would contain
1.50
⋅
10
12
atoms of lead.
Well, if you know that one mole of lead must contain
6.022
⋅
10
23
atoms of lead, it follows that you get
1.50
⋅
10
12
atoms of lead in
1.50
⋅
10
12
atoms of Pb
⋅
1 mole Pb
6.022
⋅
10
23
atoms of Pb
=
2.49
⋅
10
−
12
moles Pb