help would be much appreciated! i'll mark brainliest

Answer:

Thank you I needed this

you are...

wonderful

smart

beautiful (inside and out)

loved

and cared for

so don't go

you gotta be here

you gotta be here to spread your amazingness

because you are a queen/king

YES YOU ARE and SO IS EVERYONE ELSE, I HOPE YALL ALL STAY SAFE AND HAVE A GREAT DAY >-<

Answer:?

?Explanation:

Answer:

sup, how ya doin?

Explanation:

Answer:

1. They are made up of two or more Pure substances that are not chemically bonded together and appear non-uniform

Explanation:

edge2020 :)

Heterogenous mixtures are made up of two or more substances that are not chemically bounded together  and which appear non-uniform.

Heterogenous mixtures is defined as a type of mixture where in the composition is not uniform throughout the mixture.It consists as two or more phases. The phases are chemically distinct from each other.

As there are two or more phases present in heterogenous mixtures they can be separated by solvent extraction where in one phase is miscible with the solvent and the other phase is immiscible.

Components of a heterogenous mixtures are distinctly visible . There are two types of heterogenous mixtures, the colloids and the suspensions.These two vary with each other with respect to particle size.

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Answer:

Vampire diaries Freinds Twilight My little pony Thats it

Explanation:

Answer:

spongebob square pants

family guy

american dad

the cleveland show

teen titans go

robot chicken

the loud house

the Cassandras

the big bang theory

steven universe  

Explanation:

Answer:

option B . because acording to Newton 1st law until or unless you donot  apply force the object will not move or stops.

Explanation:

Moles of Oxygen produced : 4.5 moles

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.

The reaction coefficient shows the mole ratio of the reactants and products

Reaction

2KCIO₃ → 2KCl + 30₂

moles of KCIO₃ = 3

From equation, mol ratio of KCIO₃ : O₂ = 2 : 3, so mol O₂ :

[tex]\tt mol~O_2=\dfrac{3}{2}\times 3=4.5[/tex]

Answer: chromosomes is the answer hope this helps

Explanation:

Answer: It dependes

Explanation: which kind of warm water? Hot or normal warm? Because if hot then yes (true) if normal warm then no (false) if it is hot water then the steam coming from it makes the air above it warm. If it is normal warm then there is not enough ( I should say hotness? I don’t know any other way to say it) to make steam to make the air above it hot.

Answer:

Explanation:

1. To identify what's been oxidised and what's been reduced in a redox reaction

2. In naming compounds

3. To work out reacting proportions in titration reactions

Answer:

True i think

Explanation:

Answer:

Yes

Explanation:

Water is an example because heat touches the bottom of the sea without being nullified

Answer:

Explanation:

F2 have the weakest attraction to each other because of higher electronegativity when they are brought close to each other they repel each other

Answer:

Mass of CO₂ produced  = 5.72 g

Explanation:

Given data:

Mass of methane = 2.34 g

Mass of oxygen = 8.32 g

Mass of CO₂ produced = ?

Solution:

Chemical equation:

CH₄ + 2O₂    →      CO₂ + 2H₂O

Number of moles of methane:

Number of moles = mass/molar mass

Number of moles =  2.34 g/ 16 g/mol

Number of moles = 0.146 mol

Number of moles of oxygen:

Number of moles = mass/molar mass

Number of moles =  8.32 g/ 32 g/mol

Number of moles = 0.26 mol

Now we will compare the moles of carbon dioxide with oxygen and methane.

                         CH₄             :              CO₂

                           1                 :              1

                        0.146            :           0.146

                         O₂                :               CO₂

                          2                 :                   1

                     0.26                :              1/2×0.26 = 0.13 mol

Less number of moles of CO₂ are produced by oxygen thus oxygen will react as limiting reactant.

Mass of CO₂:

Mass = number of moles × molar mass

Mass = 0.13 mol ×  44 g/mol

Mass = 5.72 g

Answer:

Balanced forces do not cause a change in motion.

The result is no motion. Balanced forces can cancel each other out. Any time there is a balanced force, the object does not move.

Explanation:

Answer:

The result is no motion. Balanced forces can cancel each other out. Any time there is a balanced force, the object does not move.

Explanation: MARK MOST BRAINLIEST PLEASE

Answer:

A: electrons

Explanation:

Answer:

B

Explanation:

A P E X

The amount of product obtained / amount possible x100. Hence, option B is correct.

To express the efficiency of a reaction, calculate the per cent yield using this formula:

%yield = (actual yield/theoretical yield) x 100.

A per cent yield of 90% means the reaction was 90% efficient, and 10% of the materials were failed and not in use.

Hence, option B is correct.

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Answer:

22 students

Explanation:

i just answered it for a quiz and its correct

Answer:

I think its cadmium pliz mark brainliest if helpful

Answer:

She found a Sedimentary rock.  

Explanation:

Rocks found on beaches are Sedimentary. (The upcoming and this sentence is pre-written and copy and pasted in every brainly question or comment I write or answer.) If this answer helped you please consider giving it brainliest. If my answer was wrong and you got marked wrong for it, I deeply apologize and hope you will forgive me, since everyone makes mistakes sometimes. If you need me to elaborate on my answer or give further explanation on it, please ask and I will do so. If you need to explain your reasoning on your work feel free to use my words- word for word- without crediting me, the answer was made for you anyways! Hope yall learn from my answer and it helps you in the future with assignments, quizzes, test’s, and more!  

- •Trix•

( Yes I know my - •Trix• thingy is not my user but it’s what I would change it to if I could but I can't, please address me as Trix while commenting or talking to me here.)

i think the first one is B Second once is D and thord is B

In our system mainly four states of matter are present and they are solid, liquid, gas and plasma. In melting solid changes into liquid and in sublimation solid changes into gas.

States are those phases which gives idea about the arrangement of constituent particles in it and also states the physical properties.

Hence all points are discussed above.

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Answer: Once the sun's energy reaches earth, it is intercepted first by the atmosphere. A small part of the sun's energy is directly absorbed, particularly by certain gases such as ozone and water vapor. Some of the sun's energy is reflected back to space by clouds and the earth's surface.

Answer:

1.4 mol

Explanation:

that my i got i was doing for it

Answer:

magnesium salt, a carbonate salt and a one-carbon compound

Explanation:

Answer:

After experiencing inescapable brutalities as a prisoner in a Nazi concentration camp, Mr. Stermberg becomes apathetic, stopped eating, and gave up all efforts to physically survive the ordeal. His reaction …

Explanation:

Answer:

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

[tex]n = \frac{N}{L} \\[/tex]

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

[tex]n = \frac{4.78 \times {10}^{24} }{6.02 \times {10}^{23} } \\ =7.940199...[/tex]

We have the final answer as

Hope this helps you

Answer:

detail is given below.

Explanation:

First of all we will discuss the reactivity trend.

As we move from left to right across the periodic table the number of valance electrons in an atom increase. The atomic size tend to decrease in same period of periodic table because the electrons are added with in the same shell. When the electron are added, at the same time protons are also added in the nucleus. The positive charge is going to increase and this charge is greater in effect than the charge of electrons. This effect lead to the greater nuclear attraction. The electrons are pull towards the nucleus and valance shell get closer to the nucleus. As a result of this greater nuclear attraction atomic radius decreases and ionization energy increases and reactivity decreases.

As we move down the group atomic radii increased with increase of atomic number. The addition of electron in next level cause the atomic radii to increased. The hold of nucleus on valance shell become weaker because of shielding of electrons thus size of atom increased.

As the size of atom increases the ionization energy from top to bottom also  decreases because it becomes easier to remove the electron because of less nuclear attraction and reactivity increases.

In this way rubidium is more reactive than sodium and indium is more reactive than Al.

but when we compare across period sodium is more reactive than Al while Ra is more reactive than In.