Help please ASAP just with number 10

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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question

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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:

Answer:

a

Explanation:

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.

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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Answer:

Atom

Explanation:

The smallest unit which maintains an element's properties is an atom.

Answer:

mixture

Explanation:

Answer:

The number of waves that pass a fixed point in a given amount of time

Explanation:

Answer:

A medium is a substance that allows any material to travel through it.

Explanation:

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]

Answer:

A

Explanation:

The answer for the question is A

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).

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.

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

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.

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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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.

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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Answer:

Option 4 is the right of ur question

4.Elements in family 7 have similar properties.

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

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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Answer:

Give the other person brainliest

Explanation:

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..

Answer:

When two or more molecules/atoms join together to create chemical bonds

Explanation:

I learned Physics :)

HAVE A GOOD DAY SHAWTYY

Answer:

oh lawd i dont know hun

Explanation:

Answer: Green is 550 nm and blue is 470 nm

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.

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