Answers
The role of should be option D. product
Role of oxygen:
Since
And,
Now
Here we have to add all these
So, it should be
Therefore, The role of should be option D. product
learn more about oxygen here: brainly.com/question/16717574
Answer:
The correct answer is option D.
Explanation:
Step 1:
Step 2:
Overall reaction can be determined by adding all the reactions of mechanism:
Reactants in an overall reaction =
Products in an overall reaction =
According to question , the role of oxygen gas is product.
Related Questions
The value of the Solubility Product Constant for lead phosphate is ____________Write the reaction that corresponds to this Ksp value._______(Aq,S,L) +_______(Aq,S,L) <-------->_______(Aq,S,L) +_______(Aq,S,L)Ksp values are found by clicking on the "Tables" link.Use the pull-down menus to specify the state of each reactant or product.If a box is not needed leave it blank.
The amount of order in an isolated system cannot increase; it may only stay the same or decrease. This expresses which of the following?Conservation of massThe First Law of ThermodynamicsThe second Law of ThermodynamicsKinetic TheoryThe definition of workthe definition of heat
1) How many kJ are absorbed when 45.2 g of water at 31.3 oC is heated to 76.9 oC? 2) Calculate the total heat released in kcal when 72.1 g water at 25.2 oC is cooled to 0 oC and freezes. 3) How many kilojoules are required to heat 55,500 mg of gold with specific heat = 0.129 J/g oC is heated from 24.6 oC to 123.4 oC? 4) Calculate the heat needed in kcal to change 45.6 g of water at 100 oC to change into steam.
A solution of Na2CO3 is added dropwise to a solution that contains 1.05×10−2 M Fe2+ and 1.60×10−2 M Cd2+. What concentration of CO32− is need to initiate precipitation? Neglect any volume changes during the addition.
Answers
Answer:
7
Explanation:
N-14 has 7
i looked it up ye ur probably gonna get it right
Answer:
7 protons + 7 neutrons!
Explanation:
Answers
Answer:
The correct option is: B) H₂0 and OH⁻ as a conjugate pair
Explanation:
According to Brønsted-Lowry theory, theacids are the chemical substances that form a conjugate base by donating a proton and bases are the chemical substances that form conjugate acid by accepting a proton.
In the given chemical reaction: PO₄³⁻(aq) + H₂O(l) ⇄ HPO₄²⁻(aq) + OH⁻(aq)
According to Brønsted-Lowry theory, PO₄³⁻ and OH⁻ are bases. Whereas, H₂O and HPO₄²⁻ are acids.
Also, PO₄³⁻ and HPO₄²⁻ are the conjugate acid-base pair; and H₂O and OH⁻ are the conjugate acid-base pair.
Answers
Answer:
Because the water is filled up with the sand every where
Explanation:
So the exess sand goes to the bottem
Answer:
Mass/Volume
Explanation:
The sand eventually makes it way to the bottom because of its mass/volume compared to the waters density. Just like while swimming in a pool, we sink to the bottom because of our mass/volume.
Mg+
O
Cl-
Na+
Answers
Answer:
Chlorine
Explanation:
Answer:
That would be the negative ion: Cl-.
Answers
Answer:
yes
Explanation:
Usually, it would not affect the crucible, but depending on the temperature of the flame the enamel of the crucible may begin to melt and stick to the metal object being used to handle the crucible. This tiny amount that is melted off can cause very small changes in the original mass of the crucible, which although it is almost unnoticeable it is still there. Therefore, the answer to this question would be yes.
Final answer:
Using a cool, yellow-orange flame to heat the crucible does not directly affect its mass, but can lead to the burning off or decomposition of any impurities or residues present.
Explanation:
When a cool, yellow-orange flame is used to heat the crucible, it does not directly affect the mass of the crucible. The color of the flame is an indication of the temperature and the type of fuel being burned.
However, if there are impurities or residues in the crucible, the heat from the flame can cause them to burn off or decompose, which may slightly affect the mass of the crucible.
Learn more about Effect of flame color on crucible mass here:
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b non-metallic elements?
C compounds?
d mixtures?
Silicon, sea water, calcium, argon, water, air, carbon
monoxide, iron, sodium chloride, diamond, brass,
copper, dilute sulphuric acid, sulphur, oil, nitrogen,
ammonia.
^Put these where they belong.
Answers
Answer:
See explanation
Explanation:
Sea water = a mixture of different substances in water. If the water evaporates, some of those substances remain as salts. It's not a compound because it's a mixture of compounds and substances. An example of a compound is water ( because it has hydrogen atoms and an oxygen atom)
Calcium = Calcium is found on the periodic table so it cannot be a compound or mixture. It's a metallic element because we can find it on the left side of the periodic table, in group 2. It's an alkaline earth metal, what makes that calcium is a reactive metal.
Argon = Argon is found on the periodic table, so it can't be a mixture or compound. It is a non-metallic element. We can find it in group 18 on the periodic table. Argon is a noble gas, so non-metallic.
Water = a compound because its only made of 2 atoms : oxygen and hydrogen. Reasons why water is a compound and not a mixture are:
- The ormation of a compound is a chemical change which is followed by absorption of energy or evolution of energy, in case of water, electricity is required.
- Mixtures can be separated by physical separation techniques ,Water can not be separated into it its elements by physical separation techniques. But by the absorption of chemical energy.
Air = Mixture because it can be separated into different atoms, molecules,.. like oxygen, nitrogen etc. by the physical separation techniques (fractional distillation).
Carbon Monoxide = CarbonMonoxide is not found on the periodic table so it cannot be an element. It's made of 2 elements, this means caron monoxide is a compound. It's not a mixture since the elements cannot be separated by physical separating techniques.
Iron = Iron is found on the periodic table so it cannot be a compound or mixture. It's a metallic element because:
-High melting point
- Some metals form a dull oxide layer, this explains the shiny luster surface
- Electrical conductivity and thermal conductivity
Sodium chloride = NaCl cannot be found on the periodic table, so it isn't an element. It's a compound because it only has 2 atoms (elements). Those elements cannot be seperated by physical separating techniques, but would require electricity. So it's a compound.
Diamond = is a solid form of the element Carbon. It's an allotrope of carbon. They have the same physical state but in distinct form. Technically diamond is a non-metallic element. Since it's seen as carbon.
Brass = Brass is a mixture of the elements of copper and zinc. Those elements can be separated by physical techniques.
Copper = Copper is found on the periodic table so it cannot be a compound or mixture. It's a metallic element because:
-High melting point
- Some metals form a dull oxide layer, this explains the shiny luster surface
- Electrical conductivity and thermal conductivity
Dilute sulphuric acid = This is a mixture. Sulphuric acid is a compound but to dilute it's added in water, what is another compound. So it's a mixture of different compounds.
Sulphur = Can be found in the periodic table so it cannot be a mixture or compound. It's part of the metalloids, therefore, it can be concluded that sulfur is a non-metal. It belongs to the oxygen family.
Oil = Oil is a mixture of hydrocarbon compounds which varies in lengths.
Nitrogen = Nitrogen is found on the periodic table, so it can't be a mixture or compound. It can be found as a gas so it is a non-metallic element.
Ammonia = a compound of nitrogen and hydrogen with the formula NH3. Those elements cannot be separated with physical separating techniques.