Pls help me with this question: This diagram represents the process of?

A.selective breeding
B.natural selection
C.metamorphosis
D.germination

Answer:

[tex]\boxed {\boxed {\sf About \ 2.96 \ moles \ of \ Argon}}[/tex]

Explanation:

To convert from grams to moles we must use the molar mass, which is found on the Periodic Table.

Use the molar mass as a ratio.

[tex]\frac{39.9 \ g \ Ar}{1 \ mol \ Ar}[/tex]

Multiply by the given number of grams: 118

[tex]118 \ g \ Ar *\frac{39.9 \ g \ Ar}{1 \ mol \ Ar}[/tex]

Flip the fraction so the grams of argon will cancel each other out.

[tex]118 \ g\ Ar * \frac{1 \ mol \ Ar}{39.9 \ g \ Ar}[/tex]

[tex]118 * \frac{ 1 \ mol \ Ar}{39.9 \ g \ Ar}[/tex]

[tex]\frac {118 \ mol \ Ar }{ 39.9 }[/tex]

[tex]2.95739348 \ mol \ Ar[/tex]

The original measurement of grams had 3 significant figures, so our answer must have 3 sig figs.

For the number we calculated, that is the hundredth place. The 7 in the thousandth place tells us to round the 5 to a 6.

[tex]2.96 \ mol \ Ar[/tex]

There are about 2.96 moles of Argon in 118 grams.

Answer:

what i need more details

Explanation:

Answer:

Ionic

Explanation:

AgNO3 is also highly soluble in water. Ionic means that the compound is composed of ions.

Answer:

4 Adolescence

Explanation:

Adolescence is the human development stages occurs after childhood. Hence option 4 is correct.

Human development is defined as expanding people's freedoms and opportunities while also enhancing their well-being. The true freedom that everyday individuals have to choose who they are, what they do, and how to live is what human growth is all about. This discipline tries to comprehend the numerous transformations that people and their relationships go through as they learn and develop.

The youngster reaches puberty during the adolescent stage. A abrupt rise in hormones causes a variety of emotional and mental changes throughout this time. The body's major and secondary sex traits develop during a significant growth spurt phase.

Thus, adolescence is the human development stages occurs after childhood. Hence option 4 is correct.

To learn more about human development, refer to the link below:

https://brainly.com/question/14911955

#SPJ2

Answer:

balanced plz give correct question

Answer: 89.7 L

Explanation:

89.6 volume, in liters, does 128 grams of O2 occupy at STP. Therefore, option A is correct.

A volume is simply the amount of space taken up by any three-dimensional solid. A cube, a cuboid, a cone, a cylinder, or a sphere are examples of solids. Volumes differ depending on the shape.

Every three-dimensional object requires some amount of space. The volume of this space is measured. Volume is defined as the space occupied by an object within the boundaries of three-dimensional space. It is also known as the object's capacity.

1 mole Oxygen has mass 32 grams

Mole of Oxygen in 128 g mass = 128 g / 32 g/mol

= 4.0 mol O2

At Standard temperature and pressure this has volume

= 4.0 mol × 22.4 L/mol

= 89.6 L

Thus, 89.6 volume, in liters, does 128 grams of O2 occupy at STP, option A is correct.

To learn more about the volume, follow the link;

https://brainly.com/question/1578538

#SPJ6

Answer:

Iron and Oxygen

Explanation:

Fe is Iron and O2 is Oxygen

Answer:

hi

Explanation:

Answer:

Fleshy Fruits: All of most of the ovary wall (pericarp) is soft or fleshy at maturity. ... partitions, juicy seed vesicles, and a leathery exocarp similar to a hesperidium. ... This is a very common dry fruit found in many different plant families.

Explanation:

Answer:

The stamen!

The stamen is often made up of anthers and filaments

Answer:

metallic bonding

Explanation:

since it is a metal gold forms metalllic bonding.

Answer:

metalic bonding

Explanation:

External fertilization in animals usually occurs in water or in damp areas in a process called spawning.

Answer:

1. Covalent Bond

2. Ionic Bond

Explanation:

Covalent bonds are defined as the bond in which sharing of electrons takes place between atoms. The sharing of electrons is in equal number so that it form a stable balance of attraction and repulsion between atoms. In the given example of CO2 (first image) oxygen is sharing equal number of electrons with carbon to form a stable bond called covalent bond.

Ionic bonds are formed when valence electrons are transferred to other atoms and form oppositely charged ions. In ionic bond formation, the atoms that gain electrons become negatively charged and the atoms that loses electrons become positively charged. In the given example of Ca Cl2, Ca is also giving its 2 valence electrons to each Cl and there is no stable balance of attraction and repulsion between atoms.

Hence, the correct answer is:

1. Covalent Bond

2. Ionic Bond

Answer:

this is my old account and these still dont have answers

Explanation:

Answer:

Gas it too expensive I need to get a job. I have no money to use at the atm

Explanation:

if your car is on 7000 ml it has issues and you need to take it to a mechanic.

Answer:

true

Explanation:

hope that helped!!

Answer:

the answer is d.

1. Write the symbols for each element.

2. Find the charge for each element using the Periodic Table. Write it above each element. (because there is a (III) after nickel, the charge of nickel is +3. oxygen is in group 16, which means it has a -2 charge.)

3. See if the charges are balanced (if they are you're done!)

- when you criss cross (getting Ni2O3, the charges are canceled out, so the equation is balanced.

if you still need help or if this is confusing, look up How to Write the Formula for Nickel (III) oxide  by Wayne Breslyn on YT.

Answer:

D.) Ni2O3

Explanation:

edge 2021 (just needed the daily answer)

Answer:

metals, nonmetals and metalloids

Explanation:

Answer:

The speed will be 42 m/s

Explanation:

Wavelength is the minimum distance between two points on the wave that are in the same state of vibration. In other words, in a periodic wave the wavelength is the physical distance between two points from which the wave repeats.

Frequency (f) is the measure of the number of cycles or repetitions of the wave per unit of time. That is, it is the number of vibrations that occur in a unit of time. That is, how many peaks or valleys are repeated in a unit of time. If the unit of time is one second then the frequency is measured in Hertz (Hz).

The wavelength (λ) and the frequency (f) are two inversely proportional parameters and related by the propagation speed. The speed of propagation is the speed with which the wave travels, it is represented by the letter "v". The equation that links these three parameters is v = f * λ.

In this case:

Replacing:

v= 14 Hz* 3 m

Solving:

v= 42 m/s

The speed will be 42 m/s

Answer:

t 700 K, the equilibrium constant for the reaction;

H  

2(g)

​  

+I  

2(g)

​  

⇌2HI  

(g)

​  

 is 54.8.

If 0.5 mol litre  

−1

 of HI  

(g)

​  

 is present at equilibrium at 700 K, what are the concentrations of H  

2(g)

​  

 and I  

2(g)

​  

 assuming that we initially started with HI  

(g)

​  

 and allowed it to reach equilibrium at 700 K.

Answer: The magnesium 24, 25, and 26 atoms are isotopes because they all have the same number of protons but they have different mass numbers

Explanation: isotopes of an element have the same number of protons but different mass number. So for magnesium 24, the number of protons is 12 and the number of neutrons is 12.

For magnesium 25, the number of protons would still be 12 but the neutrons would be 13.

Magnesium 26, the number of protons would be 12 and neutrons number is 14

Answer:

because there is no oxygen in space for it to burn

because all fire need oxygen to burn

Explanation:

Answer:

[tex]\boxed {\boxed {\sf A. \ Change \ in \ state \ of \ matter}}[/tex]

Explanation:

A physical change occurs when only the physical properties change. They are generally reversible and no new substances are formed.

However, in a chemical change, the chemical structures and properties change, plus new substances are formed.

Let's analyze each answer choice.

1. Change in state of matter

The state of matter is a physical property, so this is a physical change.

2. Precipitate was formed

A precipitate is a solid formed in a liquid solution. This is a new substance and a chemical change.

3. Unexpected change in odor.

A change in odor is a sign of chemical change.

4. Formation of bubbles

Bubbles signify the formation of gas or a new substance.

So, the best answer choice is A. change in state of matter

Question:

Which of the following would be the evidence of a physical change?

a. change in state of matter

b. precipitate was formed

c. unexpected change in odor

d. formation of bubbles

Answer:

A. Change in state of matter!

Explanation:

How to know it evidence of physical change!

Explanation:

solvent bc when you remove it it becomes more concentrate

Stronger intermolecular forces = higher boiling point​

The stronger the intermolecular forces, the harder the molecules are to pull/break apart, which means a higher boiling point.

Answer:

9300 grams = 9.3 kilograms hope it helps

Answer:

The type of galaxy that is described as revolving around a single point and has spinning arms of stars which extend from the center is;

Spiral

Explanation:

A spiral galaxy which is the most common type of galaxy is a class of Hubble sequence of galaxies which was described in the 1936 work The Realm of the Nebulae by Edwin Hubble

Spiral galaxies are therefore have a flat disk shape such that the stars, the dusts, and the gas that make up the galaxy cluster in several radially spreading spiral arms that come together in the galaxy center

Answer:

Spiral

Explanation:

Answer:

C; 1, 5, 2

Explanation:

First, we do atom inventory:

Think of the arrow as a divider

On the left side, we have 4 phosphorus and 2 oxygens

On the right side, we have 2 phosphorus and 5 oxygens

Now we try to balance:

To make it easier, we want to try and make the 5 oxygens get to an even number so, we put a 2 in front of the P2O5 which makes it 2P2O5

Since we put a 2 in front of the P2O5, we have to multiply our phosphorus and oxygen on the right side by 2, which brings us to now have 4 phosphorus and 10 oxygens.

So now the oxygens are unbalanced.

To balance the oxygens, we put a 2 in front of the O2 located on the left side which makes us multiply our oxygen by 5, making it now 10.

Final result:

We end up having P4 + 5O2 = 2P2O5

(1, 5, 2)

Answer:

I have no idea sorry but if you payed attention to what they are telling you you won't half to cheat

Answer:

40.3044 g/mol

Explanation:

hope this helps