Answer:
ELEMENTS
Explanation:
CUZ AN A
ELEMENT IS A GROUP OF ATOMS THAT CANNOT BE BROKEN DOWN BY ANY CHEMICAL OR PHYSICAL MEAN
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.guys help plz I need it
Answer:
may be the answer will be study the structure of the earth and resources.
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:
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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what does temperature measure
Answer:
Average kinetic energy that's the answer
Answer:
hotness or coldness
.....................
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:
the various geologic settings in which rocks can melt, metamorphose, or become sediment are ultimately generated by
Geological settings whereby there is melting of rock as well as formation of sediments can be attributed to Plate tectonics .
Plate tectonics can be regarded as theory which explained the Earth's outer shell and how its been divided into solid rocks as well as slabs and its often referred to as Plate.
Plate tectonics explained that there is a large-scale motion plates which Earth's lithosphere is made up.Tectonic processes started about 3.3 and 3.5 billion years ago. Through the generation of Tectonic plate, there are melting of rocks as well as generation of sedimentsThe types of boundaries that exist between those tectonic plates can be categorized into 4, base on the the movement of the plates, and these are;divergent boundariesconvergent boundariestransform fault boundaries plate boundary zonesTherefore, plate tectonic gives explanation about Earth's outer shell.
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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 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)
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?
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:
how much muriatic acid to lower alkalinity in pool
Answer:
One gallon of muriatic acid
Explanation:
i think
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.
significant figures and scientific notation practice.
Answer:
11: 4
12: 3
13: 1
17: 3.000060
18: 5.0 x 10^2
19: 5.0 x 10^6
Explanation:
11: digits between 1&9 are always signifigant even if there are zeros between them
13: Zeros after the decimal do not count unless they represent an exact measurement
18: The decimal point moves forward 2 units so 10^2
What is the molarity of 930 mL of LiCl solution that contains 139.9 g of LiCl?
O A. 3.5 mol/L
O B. 150 mol/L
hipotle and like
O C. 3.3 mol/L
O D. 3.5 x 10-3 mol/L
Answer:
3.5 mol/L
Explanation:
First convert the 139.9g of LiCl into moles of LiCl. Don't do the sig fig rule until the very end.
Second, take 930mL of LiCl and divide it by 1000 to convert it to liters.
Third use the molarity formula which is M=mol/L and divide 0.930L by 3.300773877mol and you will get 3.549219223. This is where the sig fig rule will come into play. 3.5mol/L is a reasonable answer for this problem.
when the n quantum number equals 1, we are in what orbital?
Answer:
p orbital
Explanation:
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
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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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
during the process of nuclear decay what form of energy is released?
Answer:
Mostly Kinetic
Explanation:
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
How is a beta particle formed?
Answer:
forms when a neutron changes into a proton and a high-energy electron .
hope this helps <3
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:
what is the change in atomic mass when an atom emits a beta particle
Answer:
A neutron in the nucleus converts to a proton and a beta particle. The nucleus ejects the beta particle and some gamma radiation. The new atom retains the same mass number, but the number of protons increases to 44.
Explanation:
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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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Which term names a property of a mineral? (I'm sorry if this says Chem. I couldn't find Sci. on the list)
Answer:
Naturally occurring
Explanation:
please mark me brainliest
Answer:
Streak
Explanation:
Streak is the microscopic remains of minerals in powder form after being rubbed with porcelain plates. The streaks do not have orderly arranged lattice structure or unit cells.
They are randomly arranged and microscopic size powders. The streak of minerals cannot be distinguished easily as it mostly appears similar for all minerals.
Thus, among the given options streak is one in the property of minerals. We can rely upon streaks as it cannot be easily affected by impurities.
Question 10 of 10
What is the name for the units of information in chromosomes?
A. Traits
B. Genes
C. Heredity
D. DNA
Please hurry
Answer:
genes
Explanation:
I passed the exam jUST trust me
Answer:
The answer is B: Genes
Explanation:
Genes is the units of information
based on the activity series, which metal dissolves in hydrochloric acid to produce hydrogen gas, but does not react with steam or liquid water?
Answer: Iron
Explanation: does not react with water, but hydrochloric acid will dissolve them, displacing the hydrogen from the HCl. Iron reacts with hydrogen chloride to produce iron chloride, FeCl2 — sometimes known as ferrous chloride.
To solve such this we must know the concept of chemical reaction. Iron is the metal, which dissolves in hydrochloric acid to produce hydrogen gas, but does not react with steam.
What is chemical reaction?Chemical reaction is a process in which two or more than two molecules collide in right orientation and energy to form a new chemical compound. The mass of the overall reaction should be conserved. There are so many types of chemical reaction reaction like combination reaction, double displacement reaction.
When metals react with acid the liberation of hydrogen gas take place. Metal which is at top of reactivity series react with both acid and steam or liquid water. Iron is the only metals which dissolves in hydrochloric acid to produce hydrogen gas, but does not react with steam or liquid water.
Therefore, iron is the metal, which dissolves in hydrochloric acid to produce hydrogen gas, but does not react with steam.
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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
what quantities vary between isotopes of an element
The quantities that vary in the isotopes of the same element is number of nucleons and the number of neutrons.
Isotopes are atoms of the same element that have different numbers of neutrons. The number of protons and electrons in isotopes of an element remains the same because they determine the element's chemical properties.
Nucleons refers to the collective number of protons and the neutrons present inside the nucleus. Isotopes can have different physical properties due to the varying number of neutrons.
Therefore, the isotopes differ in the quantity of number of neutrons and the nucleons present.
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