Answer:
Beta particles have a charge of minus 1.
Explanation:
Hope this helps!
Answer:
MARK AS BRAINLIEST ANSWER
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Explanation:
Beta particles have a mass which is half of one thousandth of the mass of a proton and carry either a single negative (electron) or positive (positron) charge. As they have a small mass and can be released with high energy, they can reach relativistic speeds (close to the speed of light)
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Two substances in a mixture differ in density and particle size. theses properties can be used to
Answer:
option 1. Two substances in a mixture differ in density and particle size. These properties can be used to separate the substances. These properties can be manipulated in order to have a better separation between the two substances.
Explanation:
Answer:
Two substances in a mixture differ in density and particle size. These properties can be used to separate both of them using the separating funnel or using filtration (filter paper).
Explanation:
Since their densities are different, one substance should float above the other in the mixture which allows for the separating funnel to let the substance sinking below (with the heavier density) to flow out first before changing the beaker to let the lighter substance flow out.
The substance with a bigger particle size would not be able to pass through the filter paper unlike the substance with the smaller particle size as the filter paper's pores is not big enough for it to pass through, separating both substances (with one on the paper and the other outside the filter paper, preferably in the beaker placed below the paper).
“True or False”
Unsaturated solution contains the maximum amount of solute dissolved by a given amount of solvent
ANSWER- True
EPLANATION
are particles in gas close together
Answer:
Solid particles are close together not gas particles
CH(4)+ 20(2)→ CO2+ 2H(2)O
22.
The reaction shown above is an example of a -
a. synthesis reaction
b. combustion reaction
c. decomposition reaction
d. double displacement reaction
Answer:
Reaction is a Combustion reaction
What math is used to find density?
Answer:
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Density is the mass of an object divided by its volume. Density often has units of grams per cubic centimeter (g/cm3). Remember, grams is a mass and cubic centimeters is a volume (the same volume as 1 milliliter).
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What is the relative placement of the Moon, Earth, and Sun during a lunar eclipse?
1.The Sun, Earth, and Moon are aligned with the Earth in the middle and the Moon furthest away from the Sun.
2.The Earth and Sun are aligned with the Moon at a right angle to Earth.
3The Moon and Sun are aligned with the Earth at right a right angle to the Moon.
4The Sun, Earth, and Moon are aligned with the Moon in the center and the Earth furthest away from the Sun.
Answer:
have a good day
Explanation:
1.The Sun, Earth, and Moon are aligned with the Earth in the middle and the Moon furthest away from the Sun.
PLEASE HELP
Fossil fuels are burnt in power plants to produce electricity. Which one of the
following sequences show the correct order of energy transformation?
Answer:
a
Explanation:
Chemical then thermal because the carbon emissions produce heat
Then kinetic because there is energy transfer then electric because that's the finished result
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Methane(CH4) is a gas at room temperature, Methanol (CH3OH) is a liquid. Explain why using types of intermolecular forces present.
Explanation:
Methane is a gas at room temperature but methanol is a liquid because in methane there's London dispersion intermolecular force but in methanol there's H-bond and London dispersion force. H-bond is more stronger than London dispersion force. So, it increases the boiling point of methanol that's why methane is gas at room temperature due to weak attraction of London dispersion force and methanol is liquid.
Methanol has a higher boiling point than methane due to stronger intermolecular forces (IMFs), or attraction between individual molecules. This makes its molecules more difficult to separate, requiring more energy and resulting in a higher boiling point.
What are intermolecular forces?An intermolecular force is a force that mediates the interaction of molecules, including electromagnetic forces of attraction or repulsion that act between atoms and other types of neighboring particles, such as atoms or ions.
Intermolecular forces are classified into five types namely,
Ion-dipole forces.Ion-induced dipole forces.Dipole-dipole forces.Dipole-induced dipole forces.Induced dipole forces.Between ions and polar dipole molecules, ion-dipole forces exist.
Since of stronger intermolecular forces (IMFs), or attraction between individual molecules, methanol has a higher boiling point than methane.
This makes it more difficult to separate its molecules, requiring more energy and resulting in a higher boiling point.
Thus, this is the reason of using types of intermolecular forces present.
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In 0.4 mole of H2S, how many atoms of H are there?
Answer:
8
Explain
H: Ignoring the coefficient, we know there's 5+3=8 atoms
When using a light microscope, focus the specimen with the scanning objective
lens first.
Reasoning:
Answer:
The light microscope bends a beam of light at the specimen using a series of lenses to provide a clear image of the specimen to the observer.
12.3 moles of sodium is what mass of Na?
Answer:
1 mole of Na = mass of 22.99 g, 1 mole of Si = mass of 28.09 g.
Which allotrope of phosphorus has less ignition temperature?
Answer:
kid poop i only did this for no reason
Explanation:
Agl + Na25 yields Ag2S + Nal
Explanation:
Agl+hih+356bnh$&56DG hug zero cg hydh hod sir un bucks
Drag and drop the correct component and reactants to fill in the equation for photosynthesis
Answer:
6CO2 + 6H2O ----> C6H12O6 + 6O2
Explanation:
Photosynthesis is the process by which green plants manufacture their own food using sunlight in the presence of carbon dioxide water and chlorophyll.
Chlorophyll is the pigment in plants that absorbs light.
The equation of photosynthesis is shown in the answer section above. Sugar and oxygen are the first products of photosynthesis.
What is the rise in sea level between 1930 and 2003?
A)
About 20cm
B)
About 16cm
C
About 12cm
Answer:
about 16
Explanation:
its 20 - ( approximately 5)
= approximately 16
Answer:
It should be (C) about 12cm
3. What is the energy of a photon whose frequency is 5.2 x 1015 Hz? Use the equation: E = hxv
h= 6.626 10-34 J xs
4. What is the frequency of radiation whose wavelength is 2.40 x 105 cm? v=c+X
C= 3 x 108m/s
Answer:
3. 3.45×10¯¹⁸ J.
4. 1.25×10¹⁵ Hz.
Explanation:
3. Determination of the energy of the photon.
Frequency (v) = 5.2×10¹⁵ Hz
Planck's constant (h) = 6.626×10¯³⁴ Js
Energy (E) =?
The energy of the photon can be obtained by using the following formula:
E = hv
E = 6.626×10¯³⁴ × 5.2×10¹⁵
E = 3.45×10¯¹⁸ J
Thus, the energy of the photon is 3.45×10¯¹⁸ J
4. Determination of the frequency of the radiation.
Wavelength (λ) = 2.4×10¯⁵ cm
Velocity (c) = 3×10⁸ m/s
Frequency (v) =?
Next, we shall convert 2.4×10¯⁵ cm to metre (m). This can be obtained as follow:
100 cm = 1 m
Therefore,
2.4×10¯⁵ cm = 2.4×10¯⁵ cm × 1 m /100 cm
2.4×10¯⁵ cm = 2.4×10¯⁷ m
Thus, 2.4×10¯⁵ cm is equivalent to 2.4×10¯⁷ m
Finally, we shall determine the frequency of the radiation by using the following formula as illustrated below:
Wavelength (λ) = 2.4×10¯⁷ m
Velocity (c) = 3×10⁸ m/s
Frequency (v) =?
v = c / λ
v = 3×10⁸ / 2.4×10¯⁷
v = 1.25×10¹⁵ Hz
Thus, the frequency of the radiation is 1.25×10¹⁵ Hz.
Find three examples of synthetic compounds that contain aromatic rings. Indicate their source or importance
Answer:
Viagra, Cialis, and Levitra each contain aromatic rings.
They are all ED pills and come from drug manufacturing laboratories (you said "synthetic").
Explanation:
What is it called when elements combine to form a chemical compound?
Explanation:
A compound is a unique substance that forms when two or more elements combine chemically.Compounds form as a result of chemical reactions. The elements in compounds are held together by chemical bonds. A chemical bond is a force of attraction between atoms or ions that share or transfer valence electrons.hope it helpful ✌️✌️
Which organisms are typical decomposers?
Answer:
Insects, bacteria and fungi
Explanation:
_AICI3–> _AI + _Cl2
I need help
Answer:
2AlCl₃ ⇒ 2Al + 3Cl₂
Explanation:
Balance the equation–making sure there's an equal amount of reactants and products on both sides.
Which of the following redox conditions will produce a spontaneous reaction?
A. The sum of the voltages of the half-reactions is positive.
O B. The sum of the voltages of the half-reactions is negative.
O C. The voltage of the reduction half-reaction is positive.
D. The voltage of the reduction half-reaction is negative.
Answer:
A. The sum of the voltages of the half-reactions is positive.
Explanation:
correct on a p e x
Among the following redox conditions those will produce a spontaneous reaction is The sum of the voltages of the half-reactions is positive.
What are redox reactions?Redox reactions are the reactions in which reduction reaction and oxidation reaction happens simultaneously. The term ‘redox’ is a short form of reduction-oxidation. All the redox reactions can be broken down into two different processes: a reduction process and an oxidation process.
The loss of electrons and the corresponding increase in the oxidation state of a given reactant is called oxidation. The gain of electrons and the corresponding decrease in the oxidation state of a reactant is called reduction.
For example-
H₂ + F₂ → 2HF
Hydrogen is added to Fluorine gas so Fluorine has been reduced but Hydrogen has been oxidised.
Therefore, Among the following redox conditions those will produce a spontaneous reaction is The sum of the voltages of the half-reactions is positive.
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help me i put max points
Answer:
D. Catastrophism
Explanation:
Answer:
Catastrophism is the answer :p lol
Explanation:
2. How many liters of propane gas (C3H8) will undergo complete combustion with 34.0 L of oxygen gas? ___ C3H8 (g) + ___ O2 (g → ___ CO2 (g + ___ H2O(g
Answer:
6.8 liters of propane gas will undergo a complete combustion with 34.0 L of oxygen gas.
Explanation:
Given;
combustion reaction of propane and oxygen;
C₃H₈ + O₂(g) → CO₂(g) + H₂O(g)
Balance the chemical reaction as follows;
C₃H₈ + 5O₂(g) → 3CO₂(g) + 4H₂O(g)
From the balanced equation;
1 mole of C₃H₈ ---------------- 5 moles of 5O₂(g)
x Liters of C₃H₈ ----------------- 34.0 Liters of O₂(g)
x = 34 liters / 5
x = 6.8 liters
Therefore, 6.8 liters of propane gas will undergo a complete combustion with 34.0 L of oxygen gas.
What is this called? it might be sideways but it show look like a Y
Answer:
I'm thinking it might be Element 39: Yttrium, as this is Chemistry.
Explanation:
Two liquids A & B are miscible with each other at room temperature. Which separation technique will you apply to separate the mixture of A & B if the difference in their boiling points is 27-degree celsius
Fractional distillation
what is the net force of 4N 2N!!
Answer: 4 N-2 N=2 Nto the left. Change in motion: The box will move to the left. 7.)
Explanation: Please mark branliest.
what is CdF^4 compound name
Answer:
well it might be 1.)Cadmium Fluoride CdF2 150.4078
2.)Cadmium(II) Perfluorate Cd(FO4) 2278.403
3.)Cadmium Ferrocyanide Cd2Fe(CN) 6436.7714
Explanation:
3. Calculate the number of moles and mass in
gram_of_1 x 10^20mdecules of Nz gas
.
Answer:
0.17×10⁻³ mol
Mass = 0.00476 g
Explanation:
Given data:
Number of molecules of N₂ = 1 ×10²⁰ molecules
Number of moles of N₂ = ?
Mass in gram of N₂ = ?
Solution:
1 mole of any substance contain 6.022×10²³ molecules
1 ×10²⁰ molecules× 1 mol /6.022×10²³ molecules
0.17×10⁻³ mol
Mass in gram:
Mass = number of moles × molar mass
Mass = 0.17×10⁻³ mol × 28 g/mol
Mass = 4.76×10⁻³ g
Mass = 0.00476 g
Which of these electron configurations is not possible?
Answer:
D
Explanation:
Electrons are being filled according to the increasing other of their sublevel energy