A solute gets dissolved in something else. (solvent)
What is a solute?A solute is a substance which dissolves in something else, like a solution. As a result, a homogeneous mixture is formed. A solute can be a gas, solid or a liquid.
What is a solvent?A solvent is a substance in which a solute happens to dissolve in order to produce a homogenous mixture. Solvents can also exist as solids, liquids as well as gases.
For example, NaCl is a solute which dissolves in water, which is a solvent. The equation is as follows
NaCl (aq) + H2O (l) → NaOH (aq) + HCl (aq)
Hence, option A is the correct option.
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Selena breaks a piece off the end of a stick she found and notes that’s a physical change has occurred which of the following properties of the remaining piece of the stick has changed
If 130 J of energy were added to 1 kg of each of these samples, which would experience the GREATEST temperature
increase?
A) Aluminum
B) Brass
C) Copper
D) Platinum
Answer: D
Explanation: Platinum
How many moles of NH3 can be produced from 3.76 moles of nitrogen
in the following reaction:
N2 (g) + 3 H2 (g) → 2 NH; (g)
The number of moles of NH₃ obtained from the reaction is 7.52 moles
The balanced equation is given below:
N₂ + 3H₂ —> 2NH₃From the balanced equation above,
1 mole of N₂ reacted to produce 2 moles of NH₃.
Finally, we shall the number of mole of NH₃ produced by the reaction of 3.76 moles of N₂. This can be obtained as follow:
From the balanced equation above,
1 mole of N₂ reacted to produce 2 moles of NH₃.
Therefore,
3.76 moles of N₂ will react to produce = 3.76 × 2 = 7.52 moles of NH₃.
Thus, 7.52 moles of NH₃ were obtained from the reaction.
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The government, through the FCC (Federal Communications Commission), has set rules and guidelines for the use of radio equipment to better control wireless frequency "traffic".
A wireless server gives off 3.3 X 10-24 joules of energy. What is the wavelength of this server in meters?
Answer
A 22x10-57 m
B 60 X 10-52 m
5.0 X 100m
D 9.1 X1031m
Answer:
Wavelength = 0.06024 m
Explanation:
Equation of energy of wavelength from Einstein's relativity equation is;
E = hc/λ
Where;
h is Planck's constant = 6.626 × 10⁻³⁴ J. s
c is speed of light = 3 × 10⁸
We are given E = 3.3 × 10^(-24) J
Making wavelength λ the subject, we have;
λ = hc/E
Thus;
(6.626 × 10⁻³⁴ × 3 × 10⁸)/(3.3 × 10^(-24)) = 6.024 × 10^(-2) = 0.06024 m
Wavelength = 0.06024 m
The size of the gray circle represents atomic radius, or
the size of an atom. Which area of the periodic table
has elements with the largest atomic radius?
Answer: Here u go
Explanation:
Atomic radii varies in a predictable way across the periodic table. The atomic radius increases from top to bottom in a group, and decreases from left to right across a period. Thus, helium is the smallest element, and francium is the largest.
A hypothetical element has two main isotopes with mass numbers of 59 and 62. If 73.00% of the isotopes have a mass number of 59 amu, what atomic weight should be listed on the periodic table for this element? Answer in units of amu.
since 73% of the isotope is given, take 100%-73% to get the remaining % of the isotopes which is going to be 27%.
hence,
atomic weight= (73×59) + (27×62)
=4307+1302
=5609 amu
Burning is a type of_________reaction.
O replacement
O decomposition
O synthesis
O combustion
Answer:
Combustion
Explanation:
Happy Halloween!
A roller skater has a mass of 75 kg and accelerates at 1.5 m/s 2 squared. What is the net force acting on her?
Answer:
The answer is 112.5 NExplanation:
The force acting on an object given it's mass and acceleration can be found by using the formula
force = mass × accelerationFrom the question
mass = 75 kg
acceleration = 1.5 m/s²
We have
mass = 75 × 1.5
We have the final answer as
112.5 NHope this helps you
Does changing the number of neutrons change the identity of the element you have built?
Answer:if u change the number of neutrons u will .get an isotope of the same element.
Explanation: neutron can make an atom radioactive
Directions: Use the words in the word box to complete the following sentences.
acceleration
gravity
counteract
resistance
balanced
force
When the forces acting on an object are _______________ , there is no change in the object's motion.
A _________________ acting on a resting object can cause the object to move.
On Earth, __________________ pulls all objects toward the ground.
When a force acts in the opposite direction of another force, the forces ______________ each other.
More than one force acting on a falling object can reduce its downward ____________________.
Air _____________________ is caused by molecules of air pushing against a moving object.
Answer:
if u answer my today's a pic quatiom I will give u ur any questions
Answer:
balanced
resistance
gravity
counteract
acceleration
The ___ has many functions; one is to regulate growth.
Growth hormon somatotropin
At the top of a hlgh mountaln, the welght of an object Is:
O the same as that at sea level
O less than at sea level
Ogreater than at sea level
Which statement describes an unanticipated impact of a technological
advance?
O A. Birds known as starlings were introduced to North America from
Europe and have since competed with native species for
resources.
O B. A laser system developed by NASA to help spaceships dock with
space stations was later adapted to help doctors perform eye
surgery.
O C. Used glass can be recycled as an additive to concrete, which gives
structures made of concrete more strength and better thermal
insulating properties.
O D. A network of undersea cables was constructed to provide Internet
connections between continents that are faster and more reliable
than other transmission methods.
Answer: D A laser system............
Explanation:
Answer:
O B. A laser system developed by NASA to help spaceships dock with
space stations was later adapted to help doctors perform eye
surgery.
Explanation:
A 15 % salt (NaCl)solution is made with 750.0 grams of solution. What is the mass of sodium chloride used to make the solution?
Which of the following contains the GREATEST number of atoms of argon gas?
20.0 g of Ar
5.0 L of Ar at STP
6.02 x 10^23 atoms of Ar
0.75 moles of Ar
The temperature at which a substance in its solid state melts into the same substance in a liquid is known as
Answer:
0 C
Explanation:
Which of the following configurations would form a bent molecule?
A. A molecule with three bound atoms and no lone electron pairs
B. A molecule with two bound atoms and no lone electron pairs
C. A molecule with one bound atom and two lone electron pairs
D. A molecule with two bound atoms and one lone electron pair
Answer:
D
Explanation:
Apex
Answer: D
Explanation:
A P E X ( I just clicked it and it’s right)
What causes the change within every twenty four hours from day to night on Earth?
A)
Earth's rotation on its axis
the tilt of Earth on its axis
Tarth's revolution around the sun
the distance from Larth to the Sun
Tamashenomena on the top of the sun that appear as dark spots compar
Please answer
Answer:
Earth's rotation.
Explanation:
Most of the options are obviously incorrect, with the exception of tilt. However, tilt is the cause of seasons, not days.
Answer: Earth's rotation on its axis
Explanation:
what types of cells did Matthias Schleiden study?... HELP PLZ!!!
Answer:
plants or The Cell Theory
Explanation:
FAST I NEED THIS TO STUDY MY QUIZ IS TOMORROW!!!!
How is an atom’s atomic number related to its number of protons? To its number of electrons?
Answer:
The atomic number equals the charge on the nucleus. It therefore also equals the number of protons in the nucleus and also equals numerically the number of electrons in the neutral atom. The atomic number has the symbol Z.
Explanation:
make me as brain liest
Answer:Here u go!
Explanation:
The number of protons, neutrons, and electrons in an atom can be determined from a set of simple rules. The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number of electrons in a neutral atom is equal to the number of protons.
Hope this helps
HELP!!!!PLEASE which to terms describe how waves the them blue light are different from waves of bright red light? A. Higher amplitude B. Lower amplitude C. Longer wavelength D. Shorter wavelength choose two answers
Answer:
shorter wavelength and lower ampiltude
Explanation:
i just did this question
Answer:
B and D
Explanation:
I just took the test and got it correct ;)
PLZ HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
Reactivity
Explanation:
Luster. Ductile, and Malleabillity are all physical.
HELP ME ASAP PLEASE IDK THIS
Answer:
cExplanation:
(13 POINTS + BRAINLIEST) On a hot and windy day a farmer is cleared all the grasses from a field next to a stream in order to plant some crops. He worked all day removing the grasses, and planting seeds for his next crop. The next day the farmer noticed that half of his field had eroded away. What choice below best describes why the river was able to erode so much of the field?
A.
The wind blew the freshly cleared dirt in the field away.
B.
The river was eroded the ground since the grasses and roots were removed.
C.
Animals dug into the freshly cleared dirt looking for food.
D.
The hot temperatures caused the ground to crack and fall apart.
Answer:
B, The river was eroded the ground since the grasses and roots were removed.
Explanation: when you have roots in the ground they would soak up the water but because he removed the roots, The water goes where it used to and it eroded the ground.
Which statements describe functions of the backbone? Check all that apply.
o It supports the body's weight.
O It helps to break down food.
It surrounds and protects the brain.
It replaces the spinal cord in vertebrates.
O It allows for flexibility and movement.
It helps regulates water balance.
The answer is it supports body weight and it allows flexibility and movement
Answer:
A and E
Explanation:
Backbone is the part of skeletal system and is made of 26 vertebrae in total. The backbone and bones of lower limbs together serve to support the body's weight. Backbone surrounds and protects the spinal cord. Since the vertebrae of backbone are joints together by synovial joints, it allows the flexibility and movement of organisms.
Answer:
flexibility and movement
1. An atom has 57 neutrons and 42 protons. How many electrons will this atom have if it
neutral?
57
44
42
40
Answer:
42
Explanation:
Because the proton number or atomic number is equal to electron number.
Answer:
42
In order for it to be neutral there must be the same amount of protons and neutrons
Have a nice day! :)
In an ionic bond
a. electrons are shared equally
b. protons are transferred
c. electrons are shared unequally
d. electrons are transferred
Answer: a chemical bond; in which one atom donates an electron to another atom
Explanation:
A sample of a gas occupies 6.00 liters at a temperature of 200 K. If the pressure remains constant and the temperature is raised to 600 K, the volume of gas sample would be 1.)18.0 L 2.)2.00 L 3.)3.00 L 4.)12.0 L
Answer:
18
Explanation:
The volume of the gas should be 1. 18.0 L
Calculation of the volume of the gas;Since A sample of a gas occupies 6.00 liters at a temperature of 200 K. If the pressure remains constant and the temperature is raised to 600 K
So here the volume of the gas should be
= 600 * 6 /200
= 18.0 L
hence, the first option is correct.
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why does a liquid take the shape but not the volume of its container
Answer:
The attraction between the particles in a liquid keeps the volume of the liquid constant. The movement of the particles causes the liquid to be variable in shape. Liquids will flow and fill the lowest portion of a container, taking on the shape of the container but not changing in volume.
There is no pattern between boiling point and where the substance is located on the periodic table.
O True
O False
Answer:
i belive this is false there is not a pttern
Explanation:
Answer:
Melting and boiling point are not clear (do not have uniform pattern) in the periodic table.
So, true.
