I need help on this please

Answer: D. Compound.

Explanation:

This is high school chemistry. I’m in 8th grade, this be sooooo easy tho.

Answer:

C: Atoms

Explanation:

Chemical bond formed when one or more electrons are transferred from one atom to another.

Answer:

B

Explanation:

Answer:

B: An attractive force that acts between all objects without contact.

Explanation:

I took the test

Answer:

0.67 mol

Explanation:

Given data:

Number of moles of ammonia produced = ?

Number of moles of hydrogen = 1.0 mol

Amount of nitrogen = excess

Solution:

Chemical equation:

N₂ + 3H₂   →       2NH₃

Now we will compare the moles of ammonia with hydrogen.

                       H₂            :           NH₃

                         3             :            2

                       1.0             :        2/3×1.0 = 0.67

Thus, from 1.0 mole of hydrogen 0.67 moles of ammonia will produced.

Answer:

a Weak Base

Explanation:

I apoligise if im incorrect its been a while since I have taken the class.

Answer:

hydrogen and oxygen.

Explanation:

Answer:

HBr is the strongest and its bond is what which makes it the strongest acid.

Explanation:

This acid is dangerous and highly poisonous than other acids. It can disunite instantly. And later then it forms the suspension.

and  LiBr is not merely an acid and henceand HBr are the acids, amongst which HBr forms the strong acid component.

The strongest nature is due to the formation of hydronium ions.

The Hydrogen sulphide acid does not release hydronium ions on suspension.

Explanation:

yww

The compound HBr forms a powerful acid that contains a halogen as Bromine (Br). Thus, the correct option is B.

Halogens may be defined as all sorts of chemical elements that construct a salt when it reacts with metal. There are mainly five halogens present in the periodic table of chemical elements: fluorine, chlorine, bromine, iodine, and astatine.

Option A and option C do not contain any forms of halogen. Hence, they are eliminated.

While LiBr is not able to form any sort of acids during reactions. Due to the presence of a partial positive charge on hydrogen and a partial negative charge on Bromine, HBr forms a strong bond and that makes it as a strong acid as well.

Therefore, the compound HBr forms a powerful acid that contains a halogen as Bromine (Br). Thus, the correct option is B.

To learn more about Halogens, refer to the link:

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Answer:

well x is on top :/

Explanation:

so it should be x

A scientist claims that an intrusion of magma ( layer Y ) formed, scientists claim  Layer Y is larger in area than rock Layer Z.

All igneous rocks are created from magma, which is a naturally occurring substance that is molten or semi-molten. The Earth possesses magma beneath its surface, and other terrestrial planets and several naturally occurring satellites have also been confirmed to have magmatic activity.

Since molten rock behaves similarly to a thick, pasty material within the Earth, the word "magma" is derived from the Italian language. Another name for molten rock is lava, which is an Italian word that meaning to flow.

The upper mantle and the lower section of the Earth's crust are where magma first forms. The existence of magma is essential to comprehending the geology and morphology of the mantle because the majority of the mantle and crust are solid.

Thus, option C is correct.

To learn more about magma, follow the link;

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Answer:

It is important to know the three different types of rocks because they contain clues about what the Earth was like in the past. Different rocks form under only certain conditions and can tell us something important about the past.

The study of rocks is very important to study the geography of rocks. To understand the Types of soil and rocks on the earth's surface.

There are three different types of rocks igneous, metamorphic and sedimentary rocks. Igneous rocks are formed from melted rock. Sedimentary rocks are formed from slit and animal skeletons.

Metamorphic rocks are formed by changing heat and pressure underground. Rock and mineral are important to understand the material, structure and system of the earth.

The study of rocks help in science and geography. Basalt is used in building rocks. Granite is used to form a monuments. Pumice is used as a scrubbing material. Slate is used for roofing material of roofs.

Therefore, The study of rocks is very important to study the geography of rocks. To understand the Types of soil and rocks on the earth's surface.

To learn more about rocks, refer to the link:

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Answer:

Yes. The volume would be 1/4 of the initial volume.

Explanation:

At constant temperature, the pressure of a gas is inversely proportional to the volume of the gas. Hence;

P1V1 = P2V2

where P1 is the initial pressure, V1 is the initial volume, P2 is the final pressure, and V2 is the final volume.

If the pressure of a gas is quadrupled;

P2 = 4P1, the equation becomes

P1V1 = 4P1 x V2

Making V2 the subject:

 V2 = P1V1/4P1

        V2 = V1/4

This means that the volume would change by being reduced to 1/4 of the initial volume.

Answer:

Fertile Offspring.......

:)

Explanation:

✌❤❤

Answer:

simple machine

Explanation:

A seesaw is a simple machine, which just sways back and forth.

A complex machine is like a roller-coaster, or any other carnival game.

A mechanical machine has many screws, and is run by a human with a remote or something else.

The answer to the question has to be simple machine. Hope this helps!

Answer:

simple machine

Explanation: I took the test on k12

Answer:

a

Explanation:

it's the most common thought of element when you need a compound from earth

Answer:

light is the result of electrons moving between defined energy levels in an atom called shells.

Explanation:

when something exited an atom like collision with another atom or a chemical reaction, an electron may absorb energy boosting it to a higher level shell.

Explanation: a homogeneous mixture forms when two or more substances are combined to make something uniform. In this type of mixture, the components must be evenly distributed troughout. Only one state of matter can be present and you can see individual ingredients.

It’s basically a physical phenomena constantly undergoing small, random fluctuations. What causes Brownian motion is because they are bombarded by other moving particles in the fluid. The larger particles can be moved by light, fast-moving molecules.

Answer:

Explanation:

If the electron escapes the Hydrogen atom is positively ionized. Similarly, the Hyrogen atom can sometimes bind another electron to it. Such a Hydrogen atom is negatively ionized

Answer:

See explanation

Explanation:

a) considering the structure of the compound, it has 5 hydrogen atoms. Three are attached to C-1, one is attached to C-2 and 1 is attached to C-4.

b) (bond 2)> (bond 1) >(bond 3). As we move from single to triple bond, the magnitude of s character of the bond increases hence the bonds become shorter. Single bonds are longer than double bonds and double bonds are longer than triple bonds.

c) (bond 3) the triple bond is the shortest and strongest of all the bonds. The shorter a bond, the stronger it is.

Answer:

weather

Explanation:

Answer:

slow

Explanation:

             according to kinetic molecular theory,as the temperature decreases the kinetic energy of molecules decreases

Answer:

Electromagnetic Wave Medium Matter:The ability to move or change an object, or what a wave

Longitudinal Wave Trough Rarefaction: The area in a longitudinal wave where the particles are close together.

Transverse Wave Energy Wavelength: The highest point of a transverse wave

Explanation:

give me brainliest

Answer:

3.23m

Explanation:

Using the formula, λ = v/f, the wavelength can be calculated

In λ = v/f

λ = wavelength (m)

v = speed of light (3 × 10^8m/s)

f = frequency (Hz)

Since frequency (f) is 90.1 megahertz (MHz) i.e. 90.1 × 10^6 Hz

9.01 × 10^7Hz

λ = v/f

λ = 3 × 10^8 ÷ 9.01 × 10^7

λ = 0.3229 × 10^(8-7)

λ = 0.3229 × 10¹

λ = 3.23m

Mass of  Magnesium bromide : 5.76 g

Complete question

What mass of  Magnesium bromide is formed when 1.00 g of magnesium reacts with 5.00 g of bromine?

Reaction

[tex]\tt Mg+Br_2\rightarrow MgBr_2[/tex]

mol Mg

[tex]\tt \dfrac{1}{24}=0.042[/tex]

mol Br₂

[tex]\tt \dfrac{5}{160}=0.0313[/tex]

Limiting reactants : Br₂(smaller)

mol MgBr₂ = mol Br₂=0.0313

mass MgBr₂ :

[tex]\tt 0.0313\times 184,113 =5.76~g[/tex]

Answer:

A liquid is a nearly incompressible fluid that conforms to the shape of its container but retains a (nearly) constant volume independent of pressure. As such, it is one of the four fundamental states of matter (the others being solid, gas, and plasma), and is the only state with a definite volume but no fixed shape.

Answer:

Liquid takes the shape of any container it is put in. The atoms that make up a liquid are spread out, and move fast, but not as fast as gas. Liquid is the stage between solid and gas, concerning the water stages. Usually, a liquid can turn into a solid or gas, if it's temperature or environment is changed.

Is this good?

Answer:

224.4pounds

Explanation:

      Given;

          2.2pounds  = 1 kg

Convert;

        102 kg into pounds

Solution:

 From the conversion factor, we see that a kg is more than pound when compared. This will give us an idea of our answer;

            1kg  = 2.2 pounds

        the amount of pounds of the unknown  = y

        if

            1kg  = 2.2 pounds

          102 kg  = y pounds

  Cross multiply;

              y  = 102 x 2.2  = 224.4pounds

Answer:

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 100 × 3

We have the final answer as

Hope this helps you

Answer:

b refraction

Explanation:

i saw on nasa's website lol