Answer:
solid: ice.
liquid: water
gas: methane
plasma: lightning
Explanation:
When react with water, element A shows a mild explosion along with Hydrogen gases produced. Meanwhile, element B shows a spark of fire and duced less Hydrogen gases. Predict the position of element A and B in the periodic table using reactivity trends.
The position of element A is first group i.e. alkali metals whereas element B belongs to other groups.
It is because alkali metals reacts violently with water that leads to little explosion and also produced hydrogen gas while on the other hand, element B belongs to next groups in the periodic table. The reactivity of element A is higher than element B due to lack of one electron in the outermost shell which make it highly reactive as compared to element B which is less reactive in nature.
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FeS + ….HNO3 …….……..+ ….H2SO4 + ….NO + ……….
Answer:
hey it's mistake in the question please check it
Explain the pH difference between acid and water.
the energy required for the complete removal of 1 mol of electrons from 1 mole of gaseous atoms or ions is called energy. For a neutral element this energy is a measure of how easily the element forms an ion with a charge.
Answer: I believe you may have meant "ionization energy?" Yes, for a neutral element this is a measure of the energy required to remove a valence electron.
Explanation: See above.
By definition, The energy required for the complete removal of 1 mol of electrons from 1 mole of gaseous atoms or ions is called Ionization energy. For a neutral element this energy is a measure of how easily the element forms an ion with a charge.
The electrons are attracted to the nucleus and it is necessary to provide energy to start them.
Ionization energy is the energy required to remove an electron from a gaseous atom, isolated and in a ground state. The electrons in the last shell, which are the weakest attracted to the nucleus, are always lost. In this way the neutral atom becomes a gaseous cation (positively charged ion).
The further away the electron is from the nucleus, the easier it is to remove it, that is, the less energy is needed.
Finally:
The energy required for the complete removal of 1 mol of electrons from 1 mole of gaseous atoms or ions is called Ionization energy. For a neutral element this energy is a measure of how easily the element forms an ion with a charge.
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Compare and contrast the three types of mixtures (solutions, colloids, and suspensions).
Answer:
solutions is a homogenous mixture while colloids and suspensions are heterogeneous mixtures made up of 3 or more substances
Explanation:
homogeneous- made up of one thing
heterogeneous- made up of 2 or more things
Behind your house, there's a gorgeous pond filled with frogs. You notice that the frogs behind Mr. Archer's house often have three legs. You start wondering if the fertilizer that Mr. Archer uses for his lawn is causing the deformities in the frogs. You collect 10 frogs and put the special fertilizer in their container (Group A). You put another 10 frogs and place them in a different container with just water (Group B). A week later, 7 out of 10 of the frogs in group A grew only three legs. The frogs in group B grew four legs.
What was the control group?
Answer:
Group B is the control group
Explanation:
In an experiment, a control group is the standard to which comparisons are made in an experiment.
How has modern research in
chemistry impacted society?
Artificial products, medicines, and fertilizers are examples of chemistry discoveries that have had the greatest impact on the modern world. Polymer discovery has resulted in all the plastics and synthetic fabrics that surround us today.
What is the importance of research in chemistry?Understanding how the properties of substances are related to their molecular structures allows chemists to design new molecules and materials with the desired properties, as well as develop or invent new types of transformations for carrying out the syntheses of these substances.
Chemistry is used in almost every aspect of today's automobiles, from the exterior paint, bumpers, and headlights to the interior seats, dashboard components, and seatbelts and airbags that protect passengers.
To name a few, industrial applications of chemistry have a direct impact on our daily lives: what we eat, what we wear, how we travel, the technology we use, how we treat illnesses, and how we get electricity. Chemistry research is constantly deepening our understanding and leading to new discoveries.
To learn more about the research in chemistry, follow the link;
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Which of the following are testable?
hypotheses
laws
theories
Answer: all of them
Answer:
all the above
Explanation:
A setup that involves material, a procedure, observations, and data can be found in a a(n)
Answer:
experiment
Explanation:
that is the answer
cuantos gramos de soluto y solvente tendra 127 gramos de solición cuya concentración es 14% m/m ayuda para resolverlo
banetshegtsjegsgeheb
. Arrange the following in order of increasing radius:
a) Mg2+, Na+, Al3+
b) Na+, Al3+ , Mg2+
c) Mg2+ , Al3+ , Na+
d) Al3+ , Mg2+, Na+
Answer:
d
Explanation:
because nuclear charge ( no. of protons) increases
How is bacteria are different from animals?
Answer:
Bacteria has 1 cell and An Animal has multiple cells.
Explanation:
Bacteria is a cell its self. While An Animal, It has multiple cells that create multiple tissues, and those tissues create multiple organs, those organs make up an organ system. After the Organ System, it's an organism.
Organism = Animal, Human, Ect.
Meanwhile, Bacteria is made up ONE CELL (bacteria it's self is 1 cell)
So the answer is "Bacteria has 1 cell and An Animal has multiple cells."
I hope this helped!! <33
Which is an example of a polymer?
A. diamond
B. carbon monoxide
C. sodium chloride
D. cellulose
Answer:
[tex]d)cellulose \\ monomer \: is \: glucose \\ thank \: you[/tex]
Answer:
cellulose
Explanation:
The solubility of sugar at 30 degree celsius is 22o. what does it mean ?
please help me ..
Answer:
So, that if you put 100 mL of 30 degree water in a beaker, you could add up to 220 grams of sugar and it would eventually dissolve. In other words, that mass of sugar should dissolve in 100 mL of water to make a solution that is just saturated.
what is the formula of Plaster Of Paris(POP)?
Give the equation.
lakshu are you on?
Answer:
Molecular Formula :
(CaSO4)2.H2O or Ca2H2O9S2
Explanation:
Component Compounds CID 962 (Water) CID 1118 (Sulfuric acid) CID 5460341 (Calcium)
How does the density of one marble compare with the density of six of the
marbles?
Answer:
Since, density is mass per unit volume, the density is the same.
The density of the marbles will depend upon their mass and volume, not on their count.
What is the density?The density of an object is measured as the mass per unit volume. The average density equals the total mass of the object divided by its total volume.
The formula of the density of the material is expressed as follows:
Density = Mass/Volume
The S.I. unit of the density is Kg/m³. The density of a material is an intrinsic property as it doesn't depend on the size. If the size of the object increases, the mass increases as well but the density of material remains constant.
If the density of each marble is the same then the density of six marbles will be the same as the one marble because the density of marble is an intrinsic property. The density of marbles does not depend upon the number of marbles.
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(Forgot to ask this question last time)
Which is true about molecules?
A. A molecule is two or more atoms joined
together.
B. A molecule is two or more protons joined
together.
C. A molecule is two or more neutrons bonded
together.
Answer:
A is the correct answer.
what is sublimation
Explanation:
Sublimation is the conversion of a substance from the solid to the gaseous state without its becoming liquid. ... Freeze-drying of food to preserve it involves sublimation of water from the food in a frozen state under high vacuum. See also vaporization; phase diagram.
Can someone help me on this please
[tex]\\ \rm\longmapsto 27.3g[/tex]
[tex]\\ \rm\longmapsto 27.3(1000)[/tex]
[tex]\\ \rm\longmapsto 273(100)[/tex]
[tex]\\ \rm\longmapsto 273100mg[/tex]
what are the examples of catalystic reactions
white vitriol molecular formula
and green vitriol molecular formula??
Answer:
Green vitriol- FeSO4·7H2O
white vitriol- ZnSO₄
How does chemistry affect sports?
A. Athletes can work out on machines to increase their muscle mass.
B. Data can be collected by à computer to determine a particular
player's strengths.
C. Safety equipment is made of synthetic materials that are
lightweight yet strong.
D. The path of a ball can be predicted using the laws of motion.
Answer:
c
Explanation:
20 elements with there molecular formula
Answer:
First 20 Elements
Atomic Number Element Symbol
17 Chlorine Cl
18 Argon Ar
19 Potassium K
20 Calcium Ca
Protons, Neutrons, and Electrons worksheet! please help!!!
Answer:
Look up a picture of a periodic table, it will tell you all of it
Explanation:
gots another for you guys thanks inn advance
Answer:
c. the center of curvature of the two sides of the lens
Is it possible to prove that something is real or true of you can’t directly observe it? If no, why not? If yes, how would you do that?
A train travels 803.98 meters in 1 minute what is the trains average rate of speed
Answer:
Approximately 13.4 meters per second (m/s)
Explanation:
We can divide the distance by 60 seconds to find the trains average rate of speed.
803.98 / 60 ≈ 13.4
Best of Luck!
Gosh, help me please! 5 points.
Answer:
7 meters per second directly toward the reef
Explanation:
The barracuda swam for 8 seconds, and in 1/4 of that time it swam 14 meters, so:
8•1/4 = 2
The barracuda swam 14 meters in 2 seconds
Now, the velocity is the travelled distance divided by time, so:
14/2 = 7 meters per second
literally anyone pls
Answer:
0.5851 g/cm3
Explanation:
(45.62) ÷ (4.272)³ = 0.5851