Answer:
Ld₂Mz
General Formulas and Concepts:
Chemistry - Compounds
Explanation:
Step 1: Define
"Lindenium" Ld w/ oxidation charge of +1
"Mendezine" Mz w/ oxidation charge of -2
Step 2: Write Compound
To balance out the charges to be neutral (0), we must counter balance the amount of Ld's with Mz's. We need 2 Ld's with 1 Mz to create a compound with a neutral charge:
2Ld¹⁺ + Mz²⁻
2(+1) + (-2) = (+2) + (-2) = 0 (neutral charge)
Therefore, our compound must be Ld₂Mz.
Under which color of light will plants be least likely to make food?
red
blue
orange
green
Answer:
The color of light in which plants are less likely to produce food is green.
Explanation:
Photosynthesis is the process by which plants take advantage of sunlight to convert it into chemical energy, necessary to manufacture their nutrients, their growth and development.
Plants do not absorb all the colors of the light spectrum, since due to their pigments they absorb colors with specific wavelengths. Green plants do not absorb the color green, but reflect it —due to the chlorophyll pigment— which gives the green color to those leaves.
For this reason, the light that plants take least advantage of to produce food is green light.
Other options:
The colors blue, orange and red can be absorbed by the plant, to a lesser or greater degree.
Answer:
it would be green
Explanation:
The statement is conclusive evidence that mixing sugar in water is a physical change is there is no molecular change. Therefore, option D is correct.
A change known as physical change occurs when the physical characteristics of matter change. Physical changes include those in color, odor, solubility, and the condition of matter, among others.
Melting, turning into a gas, changing strength or durability, changing crystal structure or texture, and changing shape, size, color, volume, or density are a few examples of physical qualities.
Because sugar molecules are spread throughout the water, but the individual sugar molecules remain unaltered, dissolving sugar in water represents a physical change.
Thus, option D is correct.
To learn more about the physical change, follow the link;
#SPJ2
D.) There is no molecular change
Warm water is less dense than cold water.
The density is the same for warm and cold water.
The density will sometimes be higher for warm water and other times higher for cold water.
The Upper Peninsula of Michigan was widely known for iron mining. This region saw significant iron ore extraction, primarily in the Marquette Range, dating back to the 1800s. The mining and extraction process relied on iron smelting and made use of iron's magnetic properties.
The element that was extensively mined in the Upper Peninsula of Michigan is iron. This area, primarily in the Marquette Range, was a significant producer of iron ore, a key ingredient in the manufacturing of steel. The mining of iron in Michigan's upper peninsula started in the 1800s and, during its peak periods of the late 19th and early 20th centuries, the industry was critical to Michigan's economy.
Historically, iron ore was obtained through iron smelting, a process that involved heating and melting iron ore to extract pure iron. The iron was then used in various industries, primarily for the manufacturing of steel.
In extracting iron, magnetic properties of individual atoms were often considered due to iron's magnetic nature. Since iron ore is magnetically responsive, this property helped in the location and extraction of the ore. Furthermore, the delivery of the iron ore from the mines was influenced by the location of the mine, the concentration of the iron in the ore, and the difficulties associated with reducing the iron to its free metal form.
Learn more about Iron mining in the Upper Peninsula of Michigan here:
#SPJ12
Answer:
The coefficient of O2 when the equation is completely balanced is 19
Explanation:
The law of conservation of matter states that since no atom can be created or destroyed in a chemical reaction, the number of atoms that are present in the reagents has to be equal to the number of atoms present in the products.
Then, you must balance the chemical equation. For that, you must first look at the subscripts next to each atom to find the number of atoms in the equation. If the same atom appears in more than one molecule, you must add its amounts
Left side: 6 carbon, 14 hydrogen and 2 oxygen.
Right side: 1 carbon, 2 hydrogen and 3 oxygen.
The coefficients of each molecule below indicate the amount of each molecule for the reaction. This coefficient can be modified to balance the equation, just as you should never alter the subscripts.
By multiplying the coefficient mentioned by the subscript, you get the amount of each element present in the reaction. So, in this case you can see that in the reaction there is:
Left side: 2*6=12 carbon, 2*14=28 hydrogen and COEFFICIENT OF OXYGEN*2=? oxygen.
Right side: 12*1=12 carbon, 14*2=28 hydrogen and 12*2+14*1=38 oxygen.
As mentioned, you must have the same amount of each element on both sides. In this case, carbon and hydrogen have the same amount on both sides, so it only remains to balance the oxygen. For that, you must calculate the "OXYGEN COEFFICIENT" on the left side of the equation so that there are 38 oxygen atoms, just like the right side. This is expressed as:
COEFFICIENT OF OXYGEN*2=38
From the previous expression you can obtain:
COEFFICIENT OF OXYGEN=19
So, the coefficient of O2 when the equation is completely balanced is 19
Answer:
The answer is D.55.92%
Explanation: