Answers
Answer:
it's the electron cloud model
Related Questions
2) If you
move 50 meters in 10 seconds, what is your velocity?
Answers
Answer:
5 meter/second.
Explanation:
You dived the seconds, 10, by the meters, 50.
A dog runs 100 meters at a speed of 5 m/s. What is his time
Answers
Answer:
20 m/s
Explanation:
have a nice day¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡
HELP ASAP PLSSS 3 AND 4
Answers
Answer:
both parents traits and genes
PLEASE HELP
which of the following has the smallest ionic radii?
1. K
2.Na
3.Ca
4.Mg
Answers
Answer:
sodium, Na
Explanation:
Na, is the smallest with atomic number 11 and it has one valence electron
What would be the most likely explanation if none of the tested paint samples had turned brown?
1. The reaction was not actually caused by UV light.
2. The reaction only happens in real sunlight, not artificial.
3. The paint behaves differently on a canvas than it does in a laboratory.
4. None of the tested mixtures matched the chemical composition of Van Goghs paint.
Answers
Answer:4/d
Explanation:
i did this before
What should the range for "Light Intensity" be?
A.0-18-0-18%
B.24-51% 24-51%
C.79-90% 79-90%
D.100%
Answers
Hopes this helped!
Graphite has a specific heat of 0.709 J/gºC. If a 25 gram piece of graphite is cooled
by 17°C, how much energy was lost by the graphite?
Answers
Answer:
[tex]\boxed {\boxed {\sf 301.325 \ Joules }}[/tex]
Explanation:
Since we are given the mass, specific heat, and change in temperature, we should use this formula for energy:
[tex]q=mc \Delta T[/tex]
The mass of the graphite is 25 grams. Graphite's specific heat is 0.709 J/g °C. The change in temperature is 17 degrees Celsius.
[tex]m= 25 \ g \\c= 0.709 \ J/g \ \textdegree C \\\Delta T= 17 \ \textdegree C[/tex]
Substitute the values into the formula.
[tex]q= (25 \ g)( 0.709 \ J/g \ \textdegree C )( 17 \ \textdegree C)[/tex]
Multiply the first two numbers. The grams will cancel.
[tex]q= 17.725 \ J/ \textdegree C(17 \ \textdegree C)[/tex]
Multiply again. This time the degrees Celsius cancel.
[tex]q= 301.325 \ J[/tex]
The graphite loses 301.325 Joules of energy.
Problem 3
How many grams are in 0.8 moles of H202
Answers
Answer:
27,21 g
Explanation:
molair mass of H2O2 = 34,0147 g/mol
0,8 mol x 34,0147 g/mol = 27,21 g
Which of the following are behaviors of a gas that can be explained by the kinetic-molecular theory?
a. Gases are compressible.
b. Gases exert pressure.
c. All particles of a gas sample move at the same speed.
d. Gas particles can exchange kinetic energy when they collide.
e. Gas particles move in a curved-line path.
Answers
Answer:
b,c,d
Explanation:
gasses exert pressure, all particles of a gas sample move at the same speed. gas particles can exchange kinetic energy when they collide.
What happens to a molten ionic substance when an electric current is passed through it
Answers
Answer:
When an electric current is passed through a molten ionic compound the compound decomposes or breaks down. The process also occurs for aqueous solutions of ionic compounds. Liquids and solutions that are able to conduct electricity are called electrolytes
Explanation:
Source: the internet
Microgravity is a condition where an object or person can appear to be weightless. true or false
Answers
Answer:
its true
Explanation:
Cause i know because i just have notes a lot and i am in 10th grade U w U
What is the name of the element with the chemical symbol B?
Answers
Answer:
boron
Explanation:
cuz science.......
The amplitude of a wave is it's _________ or energy
Answers
The total pressure of a mixture of hydrogen, oxygen, and methane is 96.4 kPa. The partial pressures of hydrogen and oxygen are 13.5
kPa and 29.3 kPa respectively. What is the partial pressure of methane?
A. 139.2 kPa
B. 53.6 kPa
C. 82.9 kPa
D. 42.8 kPa
Answers
Answer:
53.7kPa
Explanation:
Given parameters:
Total pressure of the mixture = 96.4kPa
partial pressure of hydrogen = 13.4kPa
partial pressure of oxygen = 29.3kPa
Unknown:
partial pressure of methane = ?
Solution:
The total pressure of mixture is equal to the sum of their particles pressures;
Partial pressure of methane = 96.4kPa - (13.4kPa + 29.3kPa)
Partial pressure of methane = 53.7kPa
Answer: 53.6
Explanation: I just took the test and got it right.
what does 'potable water' mean?
Answers
Answer:
Potable water, also known as drinking water, comes from surface and ground sources and is treated to levels that that meet state and federal standards for consumption.
When chlorine is added to sodium bromide solution, the mixture turns brown. What type of reaction has taken place?
Answers
Answer:
A displacement reaction
Explanation:
This is because the chlorine reacts with the sodium bromide, forcing it to go brown.
I hope this helps, good luck! (✿◡‿◡)
When chlorine is added to a solution of sodium bromide (either as a gas or dissolved in water), the bromine is replaced by the chlorine.
What do you mean by Solution?In chemistry, a solution is a homogeneous mixture of two or more compounds in their relative proportions that can be continually altered up to what is referred to as the limit of solubility.
Although the word "solution" is typically used to refer to the liquid state of matter, solutions of gases and solids are also possible.
When chlorine is added to a solution of sodium bromide (either as a gas or dissolved in water), the bromine is replaced by the chlorine. Because chlorine is more reactive than bromine, sodium bromide loses its bromine content. The mixture darkens to brown. The bromine has been displace, giving this colour of brown.
To learn more about Solution, refer to the below link:
https://brainly.com/question/28330385
# SPJ2
Why is air considered a solution?
Answers
Answer:Air is a solution made up of many gases. ... There is more nitrogen than any other gas in air, so it is considered the solvent in an air solution.
Explanation:
kind of protists can live in groups with different individuals performing different jobs (site 1)
Answers
Answer:
The plasmodial slime molds are the kind of protist that can live in groups in which different individuals perform different jobs. Some kinds of bacterial cell walls also have other functions.
Select the set of coefficients that would balance the following equation:
S + HNO3 →
H2SO4 + NO2 + H2O
O 3, 2, 2, 3,1
O 6, 2, 2, 6, 2
O 1.6, 1, 2,6
O 1,6, 1, 6,2
Answers
PLEASE ANSWER ASAP (WILL GIVE BRAINLIEST)
What do we call the invisible force exerted by magnets?
A. Magnetic force
B. Electromagnetic force
C. Electric force
D. Applied force
Answers
Answer:
Magnetic Forceeeeeeeeeee
What are the states of matter and why are they relevant to you?
Answers
Solids, liquids and gases are three states of matter. In solids, the particles are tightly packed together. In liquids, the particles have more movement, while in gases, they are spread out. Particles in chemistry can be atoms, ions or molecules.
It is important to understand the particle nature of matter. The particles that make up matter are not ‘small bits of solid’ or ‘small drops of liquid’ but atoms and molecules. The physical characteristics of those atoms and molecules decide its state.
In the equation CH4 + 2O2 --> 2H2O + CO2 What is the mass of CO2 produced when 35g of O2 reacts?
Answers
Answer:
24.06 g of CO₂
Explanation:
The balanced equation for the reaction is given below:
CH₄ + 2O₂ —> 2H₂O + CO₂
Next, we shall determine the mass of O₂ that reacted and the mass of CO₂ produced from the balanced equation. This can be obtained as follow:
Molar mass of O₂ = 2 × 16 = 32 g/mol
Mass of O₂ from the balanced equation = 2 × 32 = 64 g
Molar mass of CO₂ = 12 + (2×16)
= 12 + 32
= 44 g/mol
Mass of CO₂ from the balanced equation = 1 × 44 = 44 g
SUMMARY:
From the balanced equation above,
64 g of O₂ reacted to produce 44 g of CO₂.
Finally, we shall determine the mass of CO₂ produced by the reaction of 35 g of O₂. This can be obtained as follow:
From the balanced equation above,
64 g of O₂ reacted to produce 44 g of CO₂.
Therefore, 35 g of O₂ will react to produce = (35 × 44)/64 = 24.06 g of CO₂.
Thus, 24.06 g of CO₂ were produced from the reaction.
how would u confirm that a colourless liquid given to u is a pure water?
have a great day
XD
Answers
Answer:
The boiling point and freezing point of the given liquid comes out to be 100°C or 373 K and 0°C or 273 K respectively under one atmospheric pressure, it confirms that the given liquid is pure water.
Explanation:
[tex]\huge{\mathfrak{\purple{Answer}}}[/tex]
The boiling point and freezing point of the given liquid comes out to be 100°C or 373 K and 0°C or 273 K respectively under one atmospheric pressure, it confirms that the given liquid is pure water
[tex]\huge{\mathfrak{\purple{Explanation}}}[/tex]
#HopeItHelps
lons form when atoms gain or lose valence electrons. When an atom gains
electrons, it becomes negatively charged, and when an atom loses
electrons it becomes positively charged. Why?
Answers
Answer:
In neutral atom number of electrons (negativity charged particle) and number of proton ( positively charged particle) are equal.
When one or more electrons are lost so positive charge particle increases and cation is formed.
For example in Na 11 electrons and 11 protons are present when it loses one electrons protons are 11 and 10 electron are remaining so one positive charge is present.
Morever when an element gain electrons one negative charge increases and anion is formed. For example in Cl 17 proton and 17 electrons are present when it gain one electron 18 electrons and 17 protons are now present one negative is more so anion negative ion is formed.
Explanation:
True or False? When a gas condenses to a liquid it absorbs heat from its
surroundings.
1.True
2.False
Answers
Answer:
True
Explanation:
because it never stops doing it
What happens to the average kinetic energy at a constant temperature? *
1.it increases
2.it decreases
3.it stays the same
4.it disappears
Answers
As the temperature increases, the average kinetic energy increases as does the velocity of the gas particles hitting the walls of the container. The force exerted by the particles per unit of area on the container is the pressure, so as the temperature increases the pressure must also increase.
What is the total magnification if we using objective lens 4x and our eyepiece (ocular) lens is 10x
40x
100x
400x
1000x
Answers
4x times 10x equals 40x
Review the poster.
https://www.cdc.gov/handwashing/pdf/wash-your-hands-fact-sheet-508.pdf
What is the greatest advantage of using a poster to present the information in “Stop Germs! Wash Your Hands”?
A poster that features brief sentences conveys urgency and simplifies content.
The extensive detail in posters captures viewers and causes them to stop and read.
The colors and images of a poster often convey a stronger message than words.
A poster appeals to several senses at once, which makes it hard to ignore.
Answers
A. A poster that features brief sentences conveys urgency and simplifies content.
What are some of the properties of snow
Answers
Explanation:
density, albedo, light e-folding depth, specific surface area (SSA), crystal size and shape, thermal conductivity, permeability, diffusivity,
Give examples of kinetic energy and how they work.
Answers
Answer: The kinetic energy of an object depends on both its mass and velocity, with its velocity playing a much greater role. Examples of Kinetic Energy: ... A baseball thrown by a pitcher, although having a small mass, can have a large amount of kinetic energy due to its fast velocity.
Explanation:
Hope this help