Answer:
Selenium
adadadadad
Explanation:
if u ask which group
so it is halogen
or u ask which type of matter
then liquid
how much muriatic acid to lower alkalinity in pool
Answer:
One gallon of muriatic acid
Explanation:
i think
How many total atoms are in this formula?
2MgSO4
How does heat affect solubility of solids in a liquid?
A. The particles of a solid lose their shape and do not dissolve properly when heated
B. Solubility is not affected by heat.
C. Solubility generally decreases with heat.
D. Solubility generally increases with heat.
Answer:
Option D
Explanation:
Solubility is the amount of a substance in a solvent that dissolves at a specific temperature. So knowing this you would know that generally when you increase the temperature it also increases the solubility of a substance which means the answer is option D or "Solubility generally increases with heat."
Hope this helps.
Answer:
D.) Solubility generally increases with heat
Explanation:
I got it correct on founders edtell
The atoms of which elements tend to gain electrons? Which tend to lose electrons?
A.Metals tend to lose electrons; nonmetals tend to gain electrons.
B.Metals tend to gain electrons; nonmetals tend to lose electrons.
C.Most metals and nonmetals tend to lose electrons; metalloids tend to gain
electrons.
D.Metals and most nonmetals tend to lose electrons; noble gases tend to gain
electrons.
Answer:
Nonmetals tend to gain electrons and metals tend to lose electrons.
Explanation:
9 ml of a sugar solution was mixed with 3 ml of a 76% sugar solution to make a 73% sugar solution. Find the percent concentration of the first solution.
Select the correct answer from the drop-down menu.
when the n quantum number equals 1, we are in what orbital?
Answer:
p orbital
Explanation:
why did rutherford think that all of the alpha particles would go straight through?
guys help plz I need it
Answer:
may be the answer will be study the structure of the earth and resources.
Someone pls help me I will make you brain
Answer: It has to be stratosphere because This region of the atmosphere is called the stratosphere. It is present in stratosphere According to NASA earth have 6 atmospheric layers..the layer just above the earth is troposphere and above this layer is the stratosphere.
Explanation:
what is the density of a object that has a volume of 8 ml and a mass of 22 grams?
Answer:
The density of the object is 0.32gcm3.
Explanation:
hope this helps
How is a beta particle formed?
Answer:
forms when a neutron changes into a proton and a high-energy electron .
hope this helps <3
The reaction between sodium and water releases a lot of energy to the
surroundings. What type of process is this?
Answer:
an exothermic reaction i think
Explanation:
What will happen when we replace oxygen with nitrogen in our life while breathing and what will happen if it was in our cells? (Theory no one has ever thought)
Suppose it takes 5 minutes for half of your sample to radioactively decay. If you started with 80 atoms, and have only 5 radioactive atoms left, how many half-lives have occurred?
what is the density of an object with a height of 1 and a mass of 36
you will divide 36 by 1 and multiply 2 on both sides which makes 72 by 2 so 2into 1 is 2 and 2 into 36 is 72
during the process of nuclear decay what form of energy is released?
Answer:
Mostly Kinetic
Explanation:
describe the critical processes by which nitrogen is cycled through the biotic and abiotic components of earth’s ecosystems and identify the primary storage sink for nitrogen.
Nitrogen is one of the major elements that are cycled in nature. The major sink for nitrogen in nature is the atmosphere.
Biogeochemical cycles in nature show the diverse ways that elements move through the various spheres on earth.
Nitrogen is trapped from the atmosphere by nitrogen- fixing bacteria that live in the root noodles of leguminous plants which convert atmospheric nitrogen to nitrates. This nitrogen is transferred to living organisms when they eat those plants and become incorporated into biomass.
Decomposition returns this nitrogen in biomass to the soil. The action of denitrifying bacteria converts nitrates in soil back to atmospheric nitrogen. Also several anthropogenic sources release nitrogen into the atmosphere as NOx.
The atmosphere consists of 78% nitrogen hence it serves as the largest sink for nitrogen in nature.
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what kind of chemical processes are used to create these synthetic products
Aluminium is a natural material that is widely utilised in a variety of sectors and may be converted into a variety of synthetic goods via various chemical processes.
The following are some examples of synthetic compounds created from aluminium and the accompanying chemical processes:
Aluminium Foil: Aluminium foil is a thin, flexible sheet of metal.Aluminium Cans: Aluminium cans used for beverage packaging are created through a process known as can forming. Aluminium alloys are synthetic goods formed by mixing aluminium with additional elements such as copper, zinc, magnesium, or silicon.Thus, these are only a few examples of synthetic goods generated from aluminium and the chemical processes that produce them.
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Your question seems incomplete, the probable complete question is:
What synthetic products are derived from the natural resource aluminum? What kind of chemical processes are used to create these synthetic products?
Explain why titritations using permanganate are performed in Acid solutions
The titration using permanganate in acidic solution because it can be act as behave indicator.
What is titration?Titration is a typical quantitative chemical analysis procedure used in laboratories to quantify the concentration of a specified analyte. The titrant or titrator is a substance that is manufactured as a standard solution with a given concentration as well as volume.
Permanganate titrations must be performed in a strong acid solution. Because [tex]HNO_{3}[/tex] and HCl might involve in competing for a redox reaction, lowering the accuracy of the titration, sulfuric acid is commonly utilized. Titration permits food manufacturers to calculate the amount of a reactant present in a sample.
To know more about titration.
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When piece of very hot metal releases energy into a cup of water, if the temperature of metal drops
by 426.7°C, and the final temperature of the metal is 31.2°C, what was the initial temperature of
the metal?
Answer: The answer is 457.9
Explanation: Realistically all you have to do is add both of the temperatures and then you can figure out the original heat. Since the heat drops 426.7 degrees and it comes to 31.2 degrees its 426.7 + 31.2 = 457.9.
any push or pull is called
Answer:
A Force.
Explanation:
A force is a push or pull upon an object resulting from the object's interaction with another object. ... Forces only exist as a result of an interaction.
Mass of a single 35Cl atom
Calculate the medullary index of a hair whose diameter is 110
microns wide and whose medulla measures 58 microns. Is this
a human or animal hair?
The medullary index of hair is the ratio of medullary diameter to the diameter of hair. Thus the medullary of hair with 110 microns and medulla diameter of 58 microns is 0.533. This is an animal hair.
What is hair medullary index?Medullary index of hair is the ratio of diameter of the medullary part and the diameter of the hair strand. From this value, we can identify whether the sample hair is of humans or animals.
Hair is made proteins called keratin. The protein structure of hair vary from human to human even one hair strand to the other and similar way it is different in animal hair too.
The hair strand of humans are thin than the hair strands of animals. Thus the medullary index of humans is 0.333 or less. If the index is 0.50 or greater it is of animals.
Here the diameter of hair is 110 microns and that of medulla is 58 microns thus medullary index is 58/110 = 0.55 microns. Which means that it is an animal hair.
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Someone pls help me
Answer:
A. 4 cm, 40 mm
B. 5.5 cm, 50 mm
C. 8.8cm, 80 mm
D. 8.2 cm, 82 mm
E. 9.5cm, 95 mm
Explanation:
NB: 1 cm = 10 mm
in which direction on the periodic table does metallic character increase?
Answer:
Metallic character increases down each Group of the Table as the outer electrons are further from the nucleus and require less energy for their removal. (a) metallic character decreases from left to right in each Period.
Explanation:
The metallic character increases down each Group on the periodic table.
The metallic character decreases from left to right in each Period.
What is periodic table ?The chemical elements represents in tabular form.The elements in periodic table arranged on the basis of increasing atomic masses.The interactive periodic table showing name, atomic number, atomic mass, boiling point, melting points , state of matter etc.What is metal and its metallic character?The elements having strong tendency to loss their electrons is called metals.The metals have characteristics of ductile, malleability, The metallic character refers to reactivity of metals.learn about metallic character,
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Why are some ions known as poly atomic ions?
Answer:
NH4+ ammonium ion hydroxide ion
SO32- sulfite ion perchlorate ion
NO3- nitrate ion chlorate ion
NO2- nitrite ion chlorite ion
what is the maximum time food can remain in the temperature danger zone
Answer:2 hours
This range of temperatures is often called the "Danger Zone." Never leave food out of refrigeration over 2 hours. If the temperature is above 90 °F, food should not be left out more than 1 hour. Keep hot food hot—at or above 140 °F.
Explanation:
list 5 chemical properties of water??
Answer:
In the presence of a strong electron donor (strong reducing agent), water serves as an oxidizing agent. In the presence of a strong electron acceptor (strong oxidizing agent), water serves as a reducing agent. On-water reactions are a group of organic reactions that take place as an emulsion in water and have an unusual reaction rate acceleration compared with (i) the same reaction in an organic solvent, or (ii) the corresponding dry media reaction.Amphoteric nature : Water can act as both acid and base, which means that it is amphoteric in nature.Hydrolysis reaction : Water has a very strong hydrating tendency due to its dielectric constant. It dissolves many ionic compounds. Some covalent and ionic compounds can be hydrolyzed in water.Redox reactions : Electropositive elements reduce water to hydrogen molecule. Thus, water is a great source of hydrogen.Who was the first to recognize that the observations and experimental results
regarding matter could be explained by the existence of atoms?
a. Grookes
b. Rutherford
c. Ballen
d. Chadwick
