I dont get this, please help

Answer:

So I searched it up and got, "They're created by the use of metal salts. ... Metal salts commonly used in firework displays include: strontium carbonate (red fireworks), calcium chloride (orange fireworks), sodium nitrate (yellow fireworks), barium chloride (green fireworks) and copper chloride (blue fireworks)."

WHY WAS I THINKING OF PAINT-

Explanation:

Have a great day though:)

Explanation:

The equation is balanced

Answer:

Nitrogen is the limiting reactant, and  

3.74

grams of ammonia is formed.

Explanation:

We have the familiar Haber process equation...

N

2

(

g

)

+

3

H

2

(

g

)

⇌

2

N

H

3

(

g

)

Since the mole ratio of  

N

2

to  

H

2

is  

1

:

3

, then for every mole of nitrogen, we would need three moles of hydrogen.

Explanation:

Answer:

D

Explanation:

I took the test

Answer:

D took the test

Explanation:

Answer:

Shearing commonly occurs along the edges of tectonic plates, although it may occur in other places as well. Most often it takes place between 10 and 20 kilometers beneath the earth's surface. If the same process occurred at the surface, it would result in fracturing and faulting.

Explanation:

Answer:

Now if u could give us all the questions u got right! lol 8

Explanation:

Answer:

the nucleus of an atom is positivley charged

Explanation:

Answer:

Ionic bond, also called electrovalent bond, type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound. Such a bond forms when the valence (outermost) electrons of one atom are transferred permanently to another atom.

Explanation:

Answer:

See explanation

Explanation:

There will be three peaks. The relative masses of each of the peaks is shown below;

1H - 1H peak will have a mass of 2*1.00783 amu = 2.01566 amu

1H -2H peak will have a mass of 1.00783 amu + 2.01410 amu = 3.02193 amu

2H - 2H peak will have a mass of 2*2.01410 amu = 4.0282 amu

The 2H - 2H peak is the smallest while 1H - 1H peak is the largest.

Answer:

Cells make up the smallest level of a living organism such as yourself and other living things. The cellular level of an organism is where the metabolic processes occur that keep the organism alive. That is why the cell is called the fundamental unit of life.

Explanation:

put it in your own words

Answer:

Photosynthesis, process by which green plants and certain other organisms use the energy of light to convert carbon dioxide and water into the simple sugar glucose. In so doing, photosynthesis provides the basic energy source for virtually all organisms.

Explanation:

Answer:

[Kr] 4d10 5s2 5p4 is the electronic configuration for tellurium.

Electrons per shell: 2,8,18,18,6

Atomic number: 52

Symbol: Te

Answer: Precipitation forms in the clouds when water vapor condenses into bigger and bigger droplets of water. When the drops are heavy enough, they fall to the Earth.

Explanation: Have a blessed day!

Answer: Precipitation forms in the clouds when water vapor condenses into bigger and bigger droplets of water. When the drops are heavy enough, they fall to the Earth.

Explanation:hope this helps u

The layers of the earth were formed due to the sediments that significantly flattens out beside the center of the earth. After a long duration, a new layer is spread over the older layer, and so on.

The different layers of the earth are as follows:

The above-mentioned layers of the earth were formed with the impact of the building blocks of the earth that are remarkably known as Planetesimals, collided, and collapsed.

During that time, the hardest elements like nickel, iron, etc. constitute the core while the lighter elements like carbon, oxygen, silicon, etc. play an essential role in the formation of crust and mantle.

Therefore, the layers of the earth were formed due to the sediments that significantly flattens out beside the center of the earth.

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Answer:

the electron cloud model is the current model of atom

Answer:

4/6

6/9

8/12

Explanation:

What is Jadi? is it goat? what language is Jadi?

Answer:

because its on floor which makes it faster since the pipes dont go up and if they went up its gonna be alittle slower than the ground floor cuz in the ground floor it doesnt go Up and i think this is wrong but im sorry im not really good at explaining

Explanation:

Answer:

Greater

Greater

Explanation:

The amplitude of a wave is the height of the wave or the vertical displacement of the wave motion. We determine a wave amplitude usually by looking at the graph of the wave.

Amplitude is directly proportional to the energy of a wave. The higher the amplitude of a wave, the more its energy.

Frequency is the number of waves that passes a point at a particular instance of time. It is also directly proportional to the energy carried by a wave. The higher the frequency of a wave, the greater its energy.

Answer:

A. Hot water increases the collision rate of the molecules, causing the

reaction to occur faster.

Explanation:

Hot water molecules move faster than cold water molecules.

Answer:

3) Warm Temperature and High Pressure

Explanation:

I explained this in your other question ;)

Answer:

Warm temp and high pressure

Explanation:

Answer:

This question is incomplete

Explanation:

This question is incomplete. However, the beaker that contained some water before NaOH were added means that the resulting solution in that beaker will be more dilute. When this diluted sodium hydroxide solution is added to HCl (not hci), the reaction below occurs

HCl + NaOH ⇒ NaCl + H₂O

The reaction above is a neutralization reaction. The concentration of the acid (HCl) will reduce when a base (sodium hydroxide) is added and will also reduce more because of the presence of more water (in the base) which normally reduces the concentration of ions present in an acid or a base to become more dilute.

Answer:

1 g

Explanation:

The following data were obtained from the question:

Original amount (N₀) = 32 g

Time (t) = 71.5 days

Half-life of phosphorus (t½) = 14.3 days

Amount remaining (N) =?

Next, we shall determine the rate of disintegration. This can be obtained as follow:

Half-life of phosphorus (t½) = 14.3 days

Decay constant (K) =?

K = 0.693 / t½

K = 0.693 / 14.3

K = 0.0485 /day

Finally, we shall determine the amount remaining as illustrated below:

Original amount (N₀) = 32 g

Time (t) = 71.5 days

Decay constant (K) = 0.0485 /day

Amount remaining (N) =?

Log (N₀/N) = Kt/2.303

Log (32/N) = 0.0485 × 71.5 / 2.303

Log (32/N) = 3.46775 / 2.303

Log (32/N) = 1.5058

Take the antilog of 1.5058

32/N = antilog (1.5058)

32/N = 32.05

Cross multiply

32 = N × 32.05

Divide both side by 32.05

N = 32 / 32.05

N = 0.998 ≈ 1 g

Thus, the amount remaining after 71.5 days is approximately 1 g.

The half-life of a radioactive substance refers to the time taken for the substance to Decay to half of its initial size. Hence, the mass of the substance left after 71.5 days is 1 gram.

After 14.3 days ;

After 14.3 × 2 = 28.6 days :

After 14.3 × 3 days = 42.9 days :

After 14.3 × 4 days = 57.2 days :

After 14.3 × 5 days = 71.5 days :

Hence, the mass of the sample left after 71.5 days would be 1 gram.

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Answer:

e

Explanation:

it's in the index fossil range

Answer:

Explanation:

In marine strata, index fossils that are commonly used include the single-celled Protista with hard body parts and larger forms such as ammonoids. In terrestrial sediments of the Cenozoic Era, which began about 65.5 million years ago, mammals are widely used to date deposits.

Answer:

Water

Explanation:

water or oxygen is probably your answer

Answer:

no water isn't wet.

Explanation:

Water isn't wet by itself, but it makes other materials wet when it sticks to the surface of them

Answer:

Ar, P, Si, Mg, Na

Explanation:

Ar=106pm

P=107pm

Si=111pm

Mg=141pm

Na=166pm

Na>Mg>Si>P>Ar is the order of increasing atomic radius.

Elements are the simplest substances which cannot be broken down using chemical methods.

Atomic radii vary in a predictable way along or 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 we can say that helium is the smallest element, and francium is the largest.

Ar=106pm

P=107pm

Si=111pm

Mg=141pm

Na=166pm

Hence, Na>Mg>Si>P>Ar is the order of increasing atomic radius.

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Answer:

lithium because it has an atomic number of three(you could have just googled which element has the atomic number 3)