Answer:
Fertile Offspring.......
:)
Explanation:
✌❤❤
Can someone show their work on how to do this: Calculate the number of moles of Al2O3 present in 23.87g. (Molar mass of Al2O3= 102.0g/mol)
Answer:
0.234 moles
Explanation:
moles of Al2O3 = mass / molar mass
moles of Al2O3 = 23.87g / 102.0g/mol
moles of Al2O3 = 0.234 moles (to three significant figures)
what happens when you add a electron to a hydrogen atom
Answer:
Explanation:
If the electron escapes the Hydrogen atom is positively ionized. Similarly, the Hyrogen atom can sometimes bind another electron to it. Such a Hydrogen atom is negatively ionized
a summary about liquid
Answer:
A liquid is a nearly incompressible fluid that conforms to the shape of its container but retains a (nearly) constant volume independent of pressure. As such, it is one of the four fundamental states of matter (the others being solid, gas, and plasma), and is the only state with a definite volume but no fixed shape.
Answer:
Liquid takes the shape of any container it is put in. The atoms that make up a liquid are spread out, and move fast, but not as fast as gas. Liquid is the stage between solid and gas, concerning the water stages. Usually, a liquid can turn into a solid or gas, if it's temperature or environment is changed.
Is this good?
The Texas high plains region does not revive much rain. It is reasonable to predict that this region, compared to other ecoregions, would have
Answer:
Less soil erosion
Explanation:
Due to the low amount of rainfall in this region, it is easier to say that the region compared to other ecoregion will suffer less soil erosion.
Erosion is usually the washing away of the top layer of the soil. Rainfall is one of the most important element that causes erosion. Surface runoff for an extended period of time can remove the topmost layer of the earth on which plant can grow. This starves the soil of its rich nutrients and minerals.
1. At what temperature will water change from liquid to a solid (freeze)
2.At what temperature will water change from solid to a liquid (melt)
3. At what temperature will water change from a liquid to a gas (boil)
Answer:
1. 32°F
2. 32°F
3. 100°C
Hope this helps! :)
Explanation:
PbSO4, Spell out the full name of the compound.
Answer:
Lead (II) Sulfate
Explanation:
Don't forget to add the (II) marking indicating that lead has a charge of 2+ (because Sulfate has a charge of 2-, balancing the ion).
The full name of the compound is Lead sulfate.
What are Ionic Compounds?
An ionic compound is a compound held together with an ionic bond, or a bond that utilizes opposite charges to be held together
Ionic compounds are named by stating the cation first, followed by the anion.
Positive and negative charges must balance.
Some anions have multiple forms and are named accordingly with the use of roman numerals in parentheses.
Ternary compounds are composed of three or more elements.
Therefore, The full name of the compound is Lead sulfate.
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Swim ability is it materials ability to burn in the presence of
Answer: Flammability is a material's ability to burn in the presence of oxygen.
Explanation: Chemical properties can be observed only when the substance changes into one or more different substances through chemical reactions or transformations. One of the chemical properties is flammability.
Flammability is a material's ability to burn in the presence of oxygen.
Remember, oxygen doesn't burn. Precisely flammable substances obtain substances that burn. Oxygen remains an oxidizing agent, which means it supports the combustion process. Oxygen causes other objects to catch fire at low temperatures and burns hotter and faster. But oxygen itself does not burn. Consequently, if you at present deliver fuel and fire, adding oxygen will provide the fire.
Carbon dioxide is the result of combustion. An example can be seen in firewood in a fireplace. One of the chemical properties of carbon-based wood is having the ability to burn. Chemically the wood turns into carbon dioxide when it burns and leaves a residue of ash. Furthermore, this ash residue cannot be turned back into the wood. Chemical changes result in new substances.
Consider an example of a combustion reaction to methane gas:
Our balanced equation for methane combustion implies that every one CH₄ molecule reacts with two O₂ molecules. The product of combustion is one carbon dioxide molecule and two steam or water vapor molecules.
What must scientists be mindful
of during their experiments?
A. The feelings of the subjects
B. Strict controls
C. What others will think of their experiment
Answer:
b
Explanation:
Which of the following is an inorganic compound?
a. ammonia (NH3)
b. glucose (C6H12O6)
c. butane (C4H10)
d. vinegar (C2H4O2
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Word Bank: Match each term with the sentence below
Electromagnetic Wave Medium Matter
Mechanical Wave Crest Compression
Longitudinal Wave Trough Rarefaction
Transverse Wave Energy Wavelength
__________: The highest point of a transverse wave
__________: The area in a longitudinal wave where the particles are close together.
__________: The ability to move or change an object, or what a wave carries.
__________: A wave that is caused when energy causes a vibration through a medium.
__________: Type of electromagnetic wave in which the energy runs at right angles to the wave.
__________: Type of mechanical wave in which the energy flows parallel to the wave.
__________: A wave that can travel through empty space, like light waves
__________: The lowest point of a transverse wave.
__________: Area in a longitudinal wave in which the particles are spread out.
__________: The material through which a mechanical wave travels.
Answer:
Electromagnetic Wave Medium Matter:The ability to move or change an object, or what a wave
Longitudinal Wave Trough Rarefaction: The area in a longitudinal wave where the particles are close together.
Transverse Wave Energy Wavelength: The highest point of a transverse wave
Explanation:
give me brainliest
In which substance are the particles close together and slowly moving past each other? Air, Ice, Steam or Water?
Explain why you think learning about the rock cycle will help us better understand the world around us.
Answer:
You can learn about common things happening to the environment that aren't good. Such as erosion, and the effects it has on the land surrounding it.
Explanation:
Calcium oxide is a basic oxide.Explain, using a chemical equation, why calcium oxide is basic.
Answer:
Explanation:Calcium oxide (CaO), commonly known as quicklime or burnt lime, is a widely used chemical ... Chemical formula. CaO ... Both it and a chemical derivative (calcium hydroxide, of which quicklime is the base anhydride) are important commodity ... The major use of quicklime is in the basic oxygen steelmaking (BOS) process.
An oxide is considered basic if it produces a base when it reacts with water. Calcium oxide is a basic oxide because it forms salts when it interacts with acids.
What is calcium oxide ?Calcium oxide, sometimes referred to as quicklime or burned lime, is a common chemical substance. At room temperature, it is a crystalline solid that is white, caustic, and alkaline.
Industries that manufacture glass and porcelain employ calcium oxide. Additionally, it is employed in the preparation of calcium carbide, calcium cyanamide, bleaching powder, and sugar purification. Other applications for it include cement, mortar, and water softeners.
Quicklime or burnt lime, also known as calcium oxide (CaO), is a chemical substance that is frequently used. At room temperature, it is a crystalline solid that is white, caustic, and alkaline.
Thus, Calcium oxide is a basic oxide because it forms salts when it interacts with acids.
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Write the formulas for the analogous species of the elements of period 3; would you expect them to have the same hybridization at the central atom?
Answer:
[tex]$AlH^-_4, SiH_4 \text{ and}\ PH^+_4$[/tex]
Explanation:
The elements belonging to third period which corresponds to B,C and N are Al, Si and P. All these elements in the third period tries to combine with four of hydrogen atoms and form an analogous species.
The formulae of these species are given as [tex]$AlH^-_4, SiH_4 \text{ and}\ PH^+_4$[/tex]
All these species have a central atom which has four electron domain and the geometry of the electron domain is tetrahedral. The hybridization which corresponds to the geometry of tetrahedral electron domain is [tex]$sp^3$[/tex] .
So [tex]$AlH^-_4, SiH_4 \text{ and}\ PH^+_4$[/tex] have the same hybridization at the central atom such as [tex]$BH^-_4, CH_4 \text{ and}\ NH^+_4$[/tex] .
The formulas of the analogous species of the elements of period 3 are [tex]\rm AlH_4, SiH_4, and\; PH_4[/tex]. These elements have the same hybridization ate the central atom.
What are analogous species?Analogous species are those that have similar functions.
In chemistry, the elements that are present in the same column have similar properties.
These elements with similar properties are called analogous species of the periodic table.
Thus, the formulas are [tex]\rm AlH_4, SiH_4, and\; PH_4[/tex], and they have the same hybridization at the central atom.
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Can somebody plz answer both questions correct!!!! Only 1-2 sentences per question is fine :)
(WILL MARK BRAINLIEST)...promise :D
Answer:
1) A compound is the chemical combination of two or more elements into a single substance.
An atom is the smallest particle of an element.
2) Elements have only one kind of atom.
Compound always have more than one kind of atom.
Answer:
1) An atom is the smallest possible piece of a chemical element, and a compound can be composed of two or more separate elements
2) An element is made up of only one kind of atom and a compound is made up of two or more kind of atoms
Explanation:
What statement correctly describes gravity
A. An attractive force that acts between all objects through contact
B. An attractive force that acts between all objects without contact
C. A repulsive force that acts between all objects through contact
D. A repulsive force that acts between all objects without contact
Answer:
B
Explanation:
Answer:
B: An attractive force that acts between all objects without contact.
Explanation:
I took the test
in what area might Jupiter's moon, Europa surpass Earth.
Jupiter is the largest (most massive) planet in the solar system and the fifth (5th) in line from the Sun. Also, Jupiter comprises four (4) massive moons, which were discovered over four hundred (400) years ago by the Italian astronomer named Galileo Galilei and are usually referred to as the Galilean Moons, these include:
Lo.Callisto.Ganymede.Europa.Europa is the sixth (6) closest moon to Jupiter and most fascinating of the Galilean Moons.
Basically, Europa has a warm-water interior, an icy surface and a massive ocean of salty water beneath its thick ice shell. Thus, it's considered to be one of the celestial bodies that possesses life (alien creatures) outside of planet Earth.
Some of the areas in which Europa surpasses planet Earth include the following:
Europa is the smoothest celestial body found in the Solar System because it has minimal large-scale features such as mountains.Europa has a mass of [tex]4.7998[/tex] × [tex]10^{22}[/tex] kilograms, mean density of 3.013 [tex]g/cm^3[/tex] and mean radius of about 1560 kilometers; thus, it is 24.5% the size of planet Earth and 0.008 times as massive. A single orbit around Jupiter by Europa takes 3.55 Earth days to complete unlike planet Earth that has an orbit period of 365 Earth days (one year).Europa’s atmosphere has a surface pressure [tex]10^{-12}[/tex] times that of planet Earth i.e 0.1 micro Pascals.Read more: https://brainly.com/question/342849
A reaction that releases energy is called endothermic .
True or False
Answer: False
Explanation: Endothermic means it absorbs heat energy.
True of false: Nitrogen in the atmosphere is fixed by bacteria that typically reside around the roots of plants.
what is Brownian motion
It’s basically a physical phenomena constantly undergoing small, random fluctuations. What causes Brownian motion is because they are bombarded by other moving particles in the fluid. The larger particles can be moved by light, fast-moving molecules.
Which element when combined with fluorine would form a ionic compound
6. How many electrons will an iodine atom donate or accept, based on its number of valence electrons?
A.donate seven electrons
B.accept one electron
C.donate one electron
D.accept seven electrons
Given :
An atom Iodine.
To Find :
How many electrons will an iodine atom donate or accept, based on its number of valence electrons :
A.donate seven electrons
B.accept one electron
C.donate one electron
D.accept seven electrons
Solution :
We know, valence electron in Iodine is 7 electrons.
So, it is easy for iodine to accept 1 electron rather than giving all 7 electrons to another element.
Therefore, Iodine will accept one electron ( Option B.).
Hence, this is the required solution.
Is Calcium oxide (CaO) covalent or ionic?
Answer:
Calcium oxide （CaO）is ionic.
Answer:
ionic
Explanation:
Most thermal conductors are made of which material?
Answer:
copper
Explanation:
Answer:
metal
Explanation:
which of the following could form an ionic compound? check all that apply
Answer: Na+ And F- & CI- and K+
The Na+ and F- and Cl- and K+ both can form ionic compound.
What is ionic compound ?The ionic compound is the compound formed by the ions which is held together by ionic bond.
What is ionic bond ?The bond formed by the oppositely charged ions through electrostatic force of attraction is called ionic bond.
The complete transfer of valence electron is takes place .
The ions should be oppositely charge .
The electronegativity difference between ions should be high.
So, there are two options in the question is correct.
Na+ and F-
Cl- and K+
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How can a roman numeral in a chemical name be used to write a chemical
formula?
A. The roman numeral is the charge on the nonmetal in the chemical
formula.
B. The roman numeral is the metal's oxidation state used as the
subscript on the nonmetal in the crisscross method.
C. The roman numeral is the nonmetal's oxidation state used as the
subscript on the metal in the crisscross method.
O D. The roman numeral is the subscript on the metal in the chemical
formula.
The roman numeral is the metal's oxidation state used as the subscript on the nonmetal in the crisscross method. Sometimes they are specified in the brackets with the name.
What is oxidation state ?Oxidation state of an element is the number of electrons lost or gained in a chemical bonding. When atoms gains electrons they gets reduced to lower oxidation state whereas , when atoms loss electrons they oxidizes to higher oxidation state.
Metals are electropositive and and they form cations in bonding with non-metals. The charge of the metal is written as the subscript of the nonmetal and the charge of nonmetal will be the subscript of the metal.
Roman numerals are most significantly used in the case of transition metal compounds because, they are having variable oxidation states. Hence, to specify the oxidation state of the transition metal, roman numerals are used.
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please help with these questions, it is due soon
If a jet traces 395,000 meters in 9000 seconds. What was the speed of the jet?
Answer:
43.89 m/sExplanation:
The speed of the jet can be found by using the formula
[tex]v = \frac{d}{t} \\ [/tex]
d is the distance
t is the time taken
From the question we have
[tex]v = \frac{395000}{9000} = \frac{395}{9} \\ = 43.8888...[/tex]
We have the final answer as
43.89 m/sHope this helps you
Based on the information from the movie, what can you
Conclude about the common chemical compound on
earth?
A
It's oxygen
B
its hydrogen gas
C
It's carbon dioxide
D
It's water
Answer:
a
Explanation:
it's the most common thought of element when you need a compound from earth
i need help plz for i dont understand this and dont answer if you dont know the answer
Answer:
Mitochondria are the power house of the cell and provide the cell with energy. Both plant and animal cells have mitochondria. Lysosomes are like the stomach of the cell. They contain enzymes that digest the cell's used parts.
Explanation:
Answer:
the other person got it right have a nice day:)
Explanation:
