Answer:
NaNO3
Explanation:
Sorry If its incorrect
The addition of a solution of sodium iodide and potassium nitrate has been the displacement reaction.
The reaction has resulted in the formation of the precipitate of Potassium iodide and Sodium nitrate.
The chemical equation for the reaction can be:
[tex]\rm NaI\;+\;KNO_3\;\rightarrow\;NaNO_3\;+\;KI[/tex]
The reaction has been an exothermic reaction with the formation of the pale yellow precipitate of the potassium iodide.
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a 2 cm cube made of acrylic has a mass of 9.7 g. What is the density of the acrylic?
Answer:
here
volume of cube = l^3
=2cm^3
=8cm^3
now,
mass=(9.7÷1000)kg
=0.0097kg
volume=8cm^3÷100=0.08
we know that,
density=mass/volume
= (0.0097/0.08)kg/m^3
= 0.12125kg/m^3
Explanation:
the formula to calculate volume of cube is l^3 so here we find the volume of cube using this formula and then we convert gram into kilogram then convert cm into m then by applying the formula of density we find it density
A 2 cm cube made of acrylic has a mass of 9.7 g. The density of the acrylic is 0.12125 kg m3
What is density?Density is the mass of per unit volume.
[tex]Volume of cube = l^3\\=2cm^3\\=8cm^3[/tex]
mass 9.7 kg, converted into kilograms = 0.0097kg
[tex]Volume \;= \dfrac{8cm^3}{100} = 0.08[/tex]
Calculating the density
[tex]Density = \dfrac{mass}{volume} \\\\\dfrac{0.0097}{0.08} = 0.12125\;kg\;m^3[/tex]
Thus, the density of the acrylic is 0.12125 kg m^3.
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Two white powders were mixed together. A chemical reaction occurred, and a yellow powder was formed. What is the relationship between the yellow powder and the white powders?
A. The yellow powder is made up of the same kinds of atoms as the white powders, but the atoms are combined into different molecules. The yellow powder is made up of the same kinds of atoms as the white powders, but the atoms are combined into different molecules.
B. The yellow powder is made up of the same kinds of molecules as the white powders, but the molecules are a different color. The yellow powder is made up of the same kinds of molecules as the white powders, but the molecules are a different color.
C. The yellow powder was released from inside the atoms of the white powders. The yellow powder was released from inside the atoms of the white powders.
D. There is no relationship between the yellow powder and white powders. There is no relationship between the yellow powder and white powders.
Answer:
A
Explanation:
The answer for the question is A
Okay, okay. Serious time. What is the difference between electric and mechanical energy? Name 2 examples for each, and give one situation for each.
Answer:
Kinetic Energy can be defined as the energy possessed by the object by the virtue of its motion. The sum of these two energies is often called Mechanical Energy of the System. ... Electric Energy is also a form of these 2 energies: Electric potential energy stored in a charged particle in an electric field.
Explanation:
sorry if im wrong T-T
Which statement is true about the elements in the periodic table?
1.Elements in family 2 are all nonmetals.
2.Elements in period 4 are all metals.
3.Elements in period 6 have similar properties.
4.Elements in family 7 have similar properties.
Answer:
Option 4 is the right of ur question
4.Elements in family 7 have similar properties.
This might look confusing but I really need help on this!!
I suck at chemistry
Answer:
I believe the answer is A
Answer:
A) the mass of the reactants is the same as the mass of the product
I guess
Explanation:
the law of conservation of mass stats that Mass of reactant is always equal to the Mass of the product
no link just right answer
Answer:
I think it is C since the trees hold the habitats of the animals and provide cover so with less animals there is less diversity.
ASAP LIKE RIGHT NOW
What is the frequency of a wave?
Answer:
The number of waves that pass a fixed point in a given amount of time
Explanation:
PLZZZZZZZ HELPPPPPPPPPPP:))))
Explain the concept of the conservation of mass during a change in the state of matter.
Answer: The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations. According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.
Answer:
The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations. According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants. this is what I think I hope I didn't get the same answer as anyone else.
Explanation:
what do scientists believe formed the moon's craters and regolith
Answer:
What is most widely accepted today is the giant-impact theory. It proposes that the Moon formed during a collision between the Earth and another small planet, about the size of Mars. The debris from this impact collected in an orbit around Earth to form the Moon.
Explanation:
According to the wave model of light what makes blue light different from green light
Answer: Green is 550 nm and blue is 470 nm
Please Help me on this question
How does the curved beak of a king penguin compare to the curved, cup-like structure of the pitcher plant?
They are both used to catch prey.
They are both used to collect water.
They both help avoid being eaten.
They both help protect the eggs.
please helpp
Both pitcher plant and king penguin use their physical adaptation to catch pray. The curved beak of the penguin helps them easily catch fish from snow similarly pitcher plant has the cup like structure to capture pray. Hence, option A is correct.
What is prey catching pitcher plant ?Pitfall traps, a prey-trapping mechanism with a deep hollow filled with digesting fluid, are modified leaves on a kind of carnivorous plants known as pitcher plants. Specialized leaves are used to create the traps in what are known as "genuine" pitcher plants. Using nectar, the plants draw in and suffocate their victim.
Flying, flying, or crawling insects that are out foraging are drawn to the hollow created by the cupped leaf by visual cues such nectar and anthocyanin colors.
Insects fall into the trap because the pitcher is slippery after being saturated by dew or nectar. To aid in preventing escape, the walls of the pitfall may be covered in waxy scales, protruding aldehyde crystals, cuticular folds, downward-pointing hairs, or lunate cells that originate from guard cells.
The sharp curved beak of penguin helps to easily catch their pray. Therefore, option A is correct.
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What is a medium? In science.
Answer:
A medium is a substance that allows any material to travel through it.
Explanation:
A 50 gram piece of glass with the specific heat of 0.84 J/gºC is heated from 35°C to 46°C. How much heat is added to the glass?
А
11
B
193 J
С
462 J
D
1470 J
What is the smallest unit of an element that retains the properties of that element?
A.Eletrons
B.Molecule
C.Neutron
D.Atom
Answer:
Atom
Explanation:
The smallest unit which maintains an element's properties is an atom.
Plz help ill give brainlist‼️‼️How do molecules become substances???
Answer:
When two or more molecules/atoms join together to create chemical bonds
Explanation:
I learned Physics :)
HAVE A GOOD DAY SHAWTYY
is the mass of water greater than the mass of two gases
Can anyone help me with this since it is a quiz and I am really bad at chemistry!!
Answer:
Down below <3
Explanation:
1. 1 [tex]N_{2}[/tex] + 3 [tex]H_{2}[/tex] ---> 2 [tex]NH_{3}[/tex]
2. 2 [tex]KClO_{3}[/tex] ---> 2 KCl + 3 [tex]O_{2}[/tex]
3. 1 [tex]Na_{3}PO_{4}[/tex] + 3 HCl ---> _ 3_ NaCl + 1 [tex]H_{3}PO_{4}[/tex]
4. 1 [tex]C_{2}H_{6}O[/tex] + 3 [tex]O_{2}[/tex] ---> 2 [tex]CO_{2}[/tex] + 3 [tex]H_{2}O[/tex]
Describe how sound waves travel through a solid, liquid, and gas. Why does it move differently through these different mediums?
Answer:
Sound travels more quickly through solids than through liquids and gases because the molecules of a solid are closer together and, therefore, can transmit the vibrations (energy) faster. Sound travels most slowly through gases because the molecules of a gas are farthest apart.
hope this helps.
A solution that contains more OHions than H30+ ions, is called a(n)... O A. base O B. acid O C. neutral solution O D. isosolution
Answer:
a
Explanation:
Which statement is true about the elements in the periodic table?
Elements in family 2 are all nonmetals.
Elements in period 4 are all metals.
Elements in period 6 have similar properties.
Elements in family 7 have similar properties.
(Please don't send a link to a different site and just tell me which one it is)
Answer:
Give the other person brainliest
Explanation:
For a chemical reaction in a closed system, mass cannot be ______________ or _______________. We can say that throughout the reaction mass is _____________.
A rearranged; destroyed; gained
B created; destroyed; lost
C rearranged; created; conserved
D created; destroyed; conserved
Answer:
D created; destroyed; conserved
For a chemical reaction in a closed system, mass cannot be created or destroyed. We can say that throughout the reaction, mass is conserved.
What is a closed system?
A closed system is a thermodynamic term. It can also be said as thermodynamic system. In a thermodynamic closed system, there is no exchange of mass or energy with the outer environment.
Thus, the correct option is D. created; destroyed; conserved.
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Draw a labeled sketch of an electric motor to show how it uses electromagnetism to convert electrical energy to kinetic energy.
Assume that an electromagnet and a solenoid have the same number of turns in their wire coil and the same amount of current flowing through the wire. Which device has the stronger magnetic field? Explain your answer.
Answer:
oh lawd i dont know hun
Explanation:
pls help me no links
Answer:
mixture
Explanation:
I don´t understand any of this!!
where?
.
.
.
question
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A species of insect will most likely go extinct as a result of which of the following changes to its environment?
A The introduction of a toxic pollutant to the entire range of the species
B The separation of the population into two geographic regions
C The gradual replacement of its primary food plant by a related species
D Climate change that extends the period of its reproductive activity
Answer:
A or D but I think MORE A
Explanation:
more like a than D
When a species becomes extinct all its genetic heritage is lost. Here The introduction of a toxic pollutant to the entire range of the species causes the extinction of the species and also the climate change. The correct options are A and D.
What is extinction?The process of evolution which leads to the disappearance of a population or species is defined as the extinction. The species evolve into new species in order ton adapt to the environmental changes in the genetic heritage.
The pollution from industries and vehicles will cause a drastic change in the level of oxygen in the atmosphere as well as water. This is responsible for the extinction of the most of the aquatic as well as terrestrial species.
Climate change is also an another factor which cause the destruction of the organisms. Many organisms are died due to global warming.
Thus the correct options are A and D.
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Please help I’ll mark Brainlyist !! (No links)
What is a subduction zone?
A ) where less dense oceanic crust pushes underneath more dense continental crust.
B ) Where plates diverge
C ) where more dense oceanic crust pushes underneath less dense continental crust.
D ) where plates transform
Answer:
A is correct option you can go for it
Answer:
C
Explanation: The denser oceanic crust gets bent and puller under beneath the lighter continental crust (less dense).
20 points I will give you brainliest if you answer in 5 mins
How is an image formed by a plane mirror?
A) Light bounces off of the mirror and then appears to come from in front of the mirror.
B) Light passes through the mirror and then appears to come from behind the mirror.
C) Light passes through the mirror and then appears to come from in front of the mirror.
D) Light bounces off of the mirror and then appears to come from behind the mirror.
Answer:Light bounces off of the mirror and then appears to come from behind the mirror.
Explanation:Plane mirrors form images that are virtual, upright and the same size and shape as the object it is reflecting.
When rays of light from the object hits a plane mirror they bounces off the mirror,that is they undergo reflection, and appear to originate from behind the mirror, resulting to the formation of a virtual image.
The image formed appears to be behind the plane in which the mirror lies. A virtual image is an image that is formed at a location from which the rays of light appear to come from. The image can not be formed on a screen..