Answers
2.Hooke
3.Halley
4. Halley urged newton to write Principia mathematica and when the Royal society declined to pay the cost of publishing Halley paid for it out of his own pocket
5.Through using a telescope Galileo Galilei was able to prove the theories of sciences Isaac newton
6. He believe that the speed of an object motion is proportional to the force being applied and inversely proportional to the density of the medium he reason that the object moving in a void would move in definitely fast and thus any and all objects
7. An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force
8.gottfried wilhelm von leibniz
Related Questions
1. Answer the
C.
i. Addition reaction
111. Displacement reaction.
i i ti on
a What is a chemical reaction? Mention its types.
b. Explain the following types of chemical reaction with one example
ii. Decomposition reaction
c. What are the conditions required for the decomposition reaction to
d. What is acid-base reaction? Why is it also called neutralization re
e. What is the chemical reaction in which the exchange of electrop
electronegative ions occurs in aqueous solution? Write one example
f, Explain why the double displacement reaction is also called
. What is the state of reactant and products like in the double decomposition
h. How does the application of heat increase the rate of a chemical reaction
i. What is the effect of the surface area of reactants on the rate of chemical:
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with examples.
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b. Ammo
Alumit
d. Coppe
e.
Magne
Calciu
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Silver
h. Sulph
What happer
i. red m
iii. phos
V.
silve
vi. amm
vii. wate
ix. pota
X. carb
xii. lime
decomposition reaction.
ai
is
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Multi
Explain with examples.
i What is a catalyst? Write its type with examples.
k. Differentiate between
1. Positive catalyst and negative catalyst.
ii. Exothermic reaction and endothermic reaction.
2. Complete the following reactions and also mention their types.
i. Mg+
MgSO4+H
A
Caco, +
A
1. The pro
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ii. Ca (HCO3)2
iii. MgCO,
a. Balar
c. Word
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Answers
Answer:
Explained below
Explanation:
In a decomposition reaction, a substance (commonly a molecule) descomposes in the elements that originally formed it.
The standard formula is:
AB > A + B
In fact, is the opposite of a synthesis reaction.
An example of decomposition reaction is:
H2O > 2H + O
Write 2.0 x 10^-3 in standard notation
Answers
Answer:
= 3.456 × 1011
(scientific notation)
= 3.456e11
(scientific e notation)
= 345.6 × 109
(engineering notation)
(billion; prefix giga- (G))
= 345600000000
(real number)
Explanation:
i dont know if its math or something else so here are your answers:)
Answer:
0,002
Explanation:
Kinematics equation practice
Answers
A steel cylinder for scuba diving contains 11.1 L of compressed air. The pressure inside the cylinder is
204 atm at a temperature of 24°C.
Calculate the number of moles of air in the cylinder.
Write your answer using three significant figures.
mol air
Answers
Answer:
9.28moles
Explanation:
Given parameters:
volume = 11.1L
pressure = 204atm
temperature = 24°C = 24 + 273 = 297K
Unknown:
Number of moles of air in the cylinder = ?
Solution:
To solve this problem, we apply the ideal gas equation;
PV = nRT
P is the pressure
V is the volume
n is the number of moles
R is the gas constant = 0.082atmdm³mol⁻¹K⁻¹
T is the temperature
Now insert the parameters and find n;
204 x 11.1 = n x 0.082 x 297
226.4 = 24.4n
n = 9.28moles
The number of moles of air in the cylinder is 92.98 moles
From the following parameters given, we are to determine the number of moles of air in the cylinder.
Given that:
The volume of the steel cylinder = 11.1 LThe pressure inside the cylinder = 204 atmThe temperature inside the cylinder = 24°CThe number of moles of air can be determined by using the relation for the ideal gas equation which can be expressed as:
PV = nRTwhere
n = number of molesMaking (n) the subject of the formula:
[tex]\mathbf{n = \dfrac{PV}{RT}}[/tex]
[tex]\mathbf{n = \dfrac{204 \ atm \times 11.1 L}{0.082 \ L .atm/mol .K \times 297 \ K}}[/tex]
n = 92.98 moles
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Which of the following is NOT a true statement?
The amount of solar radiation emitted by the Sun varies during different Earth
seasons. UV rays are blocked by Earth’s ozone layer.
The top several meters of the ocean is the greatest absorber of solar radiation on Earth.
Snow has a greater albedo than a rain forest.
Answers
Answer:
The amount of solar radiation emitted by the Sun varies during different Earth seasons
Explanation:
where in texas are you most likely to find hoodoos ?
coastal plain
mountains and basins
great plains
north central plains
Answers
Suppose that an electron starts in the n=4 shell of a neutral hydrogen atom. How many photons will be emitted once it has fallen to the n=1 shell?
Answers
Answer: If an Atom has 12 Electrons then if it is a Neutral atom then the Atomic Number of the Atom will be 12.
The Electronic Configuration of Element with Atomic Number 12 will be :
⇒ 1s² 2s² 2p⁶ 3s²
We can notice from the Electronic Configuration that :
Given atom has 2 electrons in the 1st shell.
⇒ In the Shell : n = 1
Number of Electrons = 2
In the similar way : Number of Electrons in 2nd shell = 2 + 6 = 8
⇒ In the Shell : n = 2
Number of Electrons = 8
In the similar way : Number of Electrons in 3rd shell = 2
⇒ In the Shell : n = 3
Number of Electrons = 2
Explanation:
When an electron starts in the n=4 shell of a neutral hydrogen atom and once it has fallen to the n=1 shell, then 3 photons will be emitted.
What is emission of energy?If any electron is presnt in the highest energy shell of an excited atom and when comes back to the ground state then emission of energy takes place.
As we know that by the absorption of one photon, electron will goes on the succeding shell from the previous shell. Similarly when electron come back to the 3rd shell from the 4th shell of a hydrogen atom then 1 photon will emit, from 3rd to 2nd shell 2nd photon will emit and from 2nd to 1st shell 3rd photon will emit.
Hence 3 photons will be emitted once electron will fall into 1st shell from the 4th shell.
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Will give Brainliest! Science question
What does a cladogram show?
A. comparison of the relative ages of organisms
B. evolutionary relationships between organism
C. comparison of species that are most similar
D. ecological relationships between organisms
Answers
Answer:
B
Explanation:
I did this and got it correct.
1) Which of the following is NOT a step in the scientific method *
Formulating a scientific question
Making Observations
Developing a hypothesis
Applying for a license
Answers
Answer:
applying for a license
Answer:
Applying for a license
Explanation:
This is because you have to have observations,hypothesis and a scientific equation when using The Scientific Method.
Which is NOT an example of an inclined plane?
Question 4 options:
A See-Saw
A screw
A slide
A ramp
Answers
Answer:
A. See-Saw
Explanation:
A see-saw is not an inclined plane but it is a lever.
A screw, ramp and a slide are all inclined planes
Simple machines help to make doing work easier. They simply help to amplify effort.
There are different types of simple machines;
the wheel and axle, the lever, the inclined plane, the pulley,d the screw, and the wedge.An inclined plane is a simple machine made up of a plane fixed at one end and then tilted at the other.
A scientist discovers a new substance. The molecules of the substance form hydrogen bonds with each other. When the molecules lose a lot of
energy, the hydrogen bonds hold them relatively far apart. Based on this information, what can the scientist infer about the substance? (2
points)
Оа
It expands when it freezes.
Oь
It is highly colored.
Ос
It exists only as a gas.
Od
It does not dissolve ionic compounds.
Answers
Answer: The answer is: It expands when it freezes. When molecule freezes, it lose energy. When molecules are far apart, it means the volume is greater and it expands.
Explanation: its A can u also anwser my question.
Answer:
it is A
Explanation:
I did the test and got it right!
The ___ is the number of protons in the nucleus of an atom of an element.
Fill in the blank.
Answers
What are some similarities between atoms, molecules, and elements?
Answers
Answer:
Physical matter is made up of atoms and molecules. An atom is the sub-component of a molecule, or the smallest unit of matter. It is the smallest part an element can divide into. A molecule is made up of atoms that are bound by ionic, covalent or metallic bond.
What determines the number of protons in an element?
Answers
The relationship between Fahrenheit and Celsius is as follows: °F = °C * 1.8 + 32 If the weather forecaster says it will be 14 °F, what is that in Celsius?
Answers
Answer:
The answer is "-10° C".
Explanation:
Fahrenheit and Celsius, both use scales for measuring their temperature standard. The Fahrenheit suggests, as just a cold water point by taking 32° F and hot water rate by taking 212° F. The freezing temperature of both the water at the Celsius scale is 0° C, as well as the boiling point of its water at 100° C.
Converting the Fahrenheit to Celsius:
Formula: [tex]\bold{^{\circ}F = ^{\circ}C \times 1.8 + 32}[/tex]
°F= 14
[tex]\to 14 = ^{\circ}C \times 1.8 + 32}\\\\\to 14 -32 = ^{\circ}C \times 1.8 \\\\\to -18 = ^{\circ}C \times 1.8 \\\\\to ^{\circ}C = \frac{-18}{1.8} \\\\\to ^{\circ}C = \frac{-180}{18} \\\\\to ^{\circ}C = - 10[/tex]
If an object has a density of 0.2g/ml, will it sink or float in water?
Sink
Float
Answers
Answer:
float ...(i think)
Explanation:
i need a person i can love and not get hurt
Answers
Answer:
You'll find someone. There's a someone for everyone.
Explanation:
And I know how you feel.
Maceo is making rock candy. Which best describes the steps she should take? heat a saturated sugar water solution, dissolve more sugar, then let the solution cool heat a saturated sugar water solution, dissolve more sugar, and wait until the water evaporates saturate a water solution, increase the pressure, and dissolve more sugar saturate a water solution, lower the pressure, and dissolve more sugar
Answers
Answer:
(A) is the answer
Explanation:
(A) heat a saturated sugar water solution, dissolve more sugar, then let the solution cool
Answer:
the answer is a
Explanation:
im on edg rn
Please help!
An astronaut orbits planet X in his spaceship. To remain in orbit at 675 km above the planet's center, he maintains a speed of 76 m/s. What is the
mass of planet X? Note: the constant of universal gravity (G) equals 6.674 X 10 ^-11 N m^2/kg^2.
A. 7.7 x 10^14 kg
B. 5.8 x 10^19 kg
C. 7.7 x 10^17 kg
D. 5.8 x 10^16 kg
Answers
Answer:
B. 5.8 × 10^19 kg
Explanation:
04. Which two methods can be used to separate a salt from its solution in water?
1 crystallisation
2 decanting
3 distillation
4 filtration
А 1 and 2
B 1 and 3
C 2 and 3
D 3 and 4
Answers
Answer:
B 1 and 3
this might be able to help you
Answer:
i think option b
C 1 and 3
Explanation:
Simple distillation is a method for separating the solvent from a solution. For example, water can be separated from salt solution by simple distillation. This method works because water has a much lower boiling point than salt. When the solution is heated, the water evaporates.
Crystals grow because salt molecules in the solution meet up and interlock. As they do so, they fit together like puzzle pieces, arranging themselves in a lattice structure, thus creating a crystal nucleus. ... it crystallizes.
Which of the following is an electrolytic cell?
A. Silver (Ag) oxidized, gold (Au) reduced
B. Lithium (Li) oxidized, zinc (Zn) reduced
C. Aluminum (Al) oxidized, zinc (Zn) reduced
D. Iron(II) (Fe) oxidized, aluminum (AI) reduced
Answers
Iron (II) (Fe) oxidized, aluminium (Al) reduced. Hence, option D is correct.
What is an electrolytic cell?An electrolytic cell converts electrical energy into chemical energy or vice versa.
Oxidation-reduction reactions are balanced by two half overall chemical equations into an oxidation equation and a reduction equation.
Iron (II) (Fe) oxidized, aluminium (Al) reduced of the following is an electrolytic cell.
Hence, option D is correct.
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What is the difference between magnetic stripping and magnetic field reversal?
Answers
Magnetic stripes on the seafloor are formed when new ocean crust is formed. As the magma erupts from the mid-ocean ridges and cools to form rock any minerals containing iron will be oriented in the direction of the magnetic field. When the Earth's magnetic field reverses (every million years or so) the new rock that gets formed will have its magnetic minerals oriented in the opposite direction. This results in a series of magnetic stripes in the rock on the seafloor. (Think of it kind of like a bar code.)
Because new ocean floor is being formed on both sides of mid-ocean ridges and spreading away from the ridges as even newer seafloor is formed, there are symmetric stripes on each side of the ridge. This led to some of the early evidence of tectonic plate motion.
Which group of organisms disappeared during the mass extinction at the end of the Cretaceous Period?
A. dinosaurs
B. mammoths
C. saber tooth cats
D. trilobites
Answers
Answer:
saber tooth cats
Explanation:
Explain what lattice energy is and how it affects
the properties of ionic compounds. Describe the
general properties of ionic compounds.
Answers
Answer:
Explanation:
Lattice energy is a way to measure the bond strength in ionic compounds. Ionic compounds tend to have high melting and boiling points. Ionic compounds tend to be hard. Ionic compounds have a range of solubilities.
is the kinetic energy due to the random motion of particles in an object
Answers
Answer:
You are correct however there is also potential energy because the energy is released over a period of time.
Hope this helps!
A 15.0 L tank of gas contained at a high pressure of 8.20 • 10^4 torr. The tank is opened and the gas expands into an empty chamber with a volume of 600•10^4 L. Calculate the new pressure of the gas
Answers
Answer:
P₂ = 0.205torr
Explanation:
Boyle's law relates the pressure and volume of a gas under two different conditions. The equation is:
P₁V₁ = P₂V₂
Where P is pressure and V volume of of 1, initial conditions and 2, final conditions.
P₂ is our incognite
Replacing:
P₁V₁ = P₂V₂
8.20x10⁴torr*15.0L = P₂*600x10⁴L
P₂ = 0.205torr
What is the boiling point in °C) of a 0.527 m
aqueous solution of LiBr?
Enter your rounded answer with
3 decimal places.
Answers
100.54 °C
Explanation:
Supposing complete ionization:
LiBr → Li{+} + Br{-] [two ions]
• (0.527 m LiBr) x (2 mol ions / 1 mol LiBr) = 1.054 m ions
• (0.512 °C/m) x (1.054 m) = 0.540 °C change
• 100.00°C + 0.540 °C = 100.54 °C
To solve this we must know the concept behind the phenomenon of elevation in boiling point when a non volatile solute is added to any solvent. Therefore, boiling point in °C of a 0.527 m aqueous solution of LiBr is 100.54 °C.
What is elevation in boiling point ?Whenever a non volatile solute is added to a solvent then the boiling point of solvent increases.
Mathematically,
ΔT= Kb× molality
The complete balanced equation can be written as
LiBr → Li⁺ + Br⁻ [two ions]
substituting all the given values in the above mathematical expression, we get
(0.527 m LiBr) x (2 mol ions / 1 mol LiBr) = 1.054 m ions
(0.512 °C/m) x (1.054 m) = 0.540 °C change
100.00°C + 0.540 °C = 100.54 °C
Therefore, boiling point in °C of a 0.527 m aqueous solution of LiBr is 100.54 °C.
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How does the body use energy from respiration
Answers
Answer:
Some of the energy released in respiration is used to make larger molecules from smaller ones, to enable muscles to contract and to keep temperature steady. Some of the energy released in respiration in plants is used to make amino acids and proteins. c Food provides the amino acids needed to make body proteins.
Explanation:
the correct electron-dot formula for a molecule of chlorine?
Answers
Answer:
Cl has 7 dots
if its Cl2; Cl-Cl it will contain 14 dots
Explanation:
The electron-dot formula of the chlorine molecule Cl₂is shown in the attached diagram below.
What is the lewis electron dot diagram?A lewis electron dot structure is used to represent the number of bonds, the bonding atoms, and the lone pairs left in the atoms in the molecule.
Lines are shown between atoms that are bonded to one another and excess electrons or lone pairs are represented as dot pairs and are placed next to the atoms.
As the valence electrons of each chlorine atom are equal to seven from the electronic configuration of the chlorine atom.
First, the total number of valence electrons in a chlorine molecule is 7 + 7 = 14.
As each chlorine atom needs only one electron to complete its octet. As the octet completes, the rest of the electrons are assigned as the lone pairs of atoms. Therefore, each chlorine atom has three lone pairs of electrons on it.
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Describe 1 way process or system that transfers heat by convection. Be specific in details