CHEM ASSIGNMENT!!

PLEASE HELP

Answer:

see attachment......

Answer:

C. As speed increases, kinetic energy increase exponentially

Explanation:

As you can see on the graph, the further right we move on the x-axis, the higher the values on the y-axis. This means that as one value increases, the other value also increases. The only answer choice that says this is C.

Hope this helps :)

is C because i did it on the quiz

Answer: True

Explanation:

Answer:

The process of photosynthesis is commonly written as: 6CO2 + 6H2O → C6H12O6 + 6O2.

Explanation:

This means that the reactants, six carbon dioxide molecules and six water molecules, are converted by light energy captured by chlorophyll (implied by the arrow) into a sugar molecule and six oxygen molecules, the products.

Answer: Carbon

Explanation:

electronegativity decreases when you go down a column

The study of chemical bonds is called chemistry.

The correct answer is carbon.

The more negative charge present on an atom shows the electronegativity.

The attraction of the nucleus to the proton is also referred to as electronegativity.

The smaller the radius more the electronegativity.

Hence, the correct answer is Carbon as it has fewer atoms and a smaller radius.

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Answer:

the concentration of the reactants

the temperature in heating

The variable that should be kept constant is the concentration of the reactant and the temperature in heating.

Hydrochloric acid (HCl) is called as the muriatic acid represent the colorless corrosive, also the mineral acid should be strong that contains various industrial used also it should be reacted with an organic base it created the hydrochloride salt.

Therefore, we can conclude that The variable that should be kept constant is the concentration of the reactant and the temperature in heating.

Learn more about acid here: https://brainly.com/question/17784856

Answer:

A) Test(independent) variable is bat wings.

B) Result (dependent) Variable is the Polyjuice Potion.

C) Cauldrons and fire

Explanation:

A) A test/independent variable is the variable that is being tested in the experiment or research and it is not affected by other variables in the experiment.

Now, in this experiment, what is being tested is are the bat wings.. Thus;

Test(independent) variable is bat wings.

B) Result (dependent) Variable is a variable that depends on the independent variable being tested. From the question, the result is the Polyjuice Potion.

Thus, Result (dependent) Variable is the Polyjuice Potion.

C) The constants are things that don't change with respect to any of the other variables. In this case, they are; cauldrons and fire

Answer:

10 g H₂SO₄

General Formulas and Concepts:

Chemistry - Stoichiometry

Explanation:

Step 1: Define

Given:   8 g SO₃

RxN:   SO₃ + H₂O → H₂SO₄

Step 2: Identify Conversions

Molar Mass of S - 32.07 g/mol

Molar Mass of O - 16.00 g/mol

Molar Mass of H - 1.01 g/mol

Molar Mass of SO₃ - 32.07 + 3(16.00) = 80.07 g/mol

Molar mass of H₂SO₄ - 2(1.01) + 32.07 + 4(16.00) = 98.09 g/mol

Step 3: Stoichiometry

[tex]8 \ g \ SO_3(\frac{1 \ mol \ SO_3}{80.07 \ g \ SO_3} )(\frac{1 \ mol \ H_2SO_4}{1 \ mol \ SO_3} )(\frac{98.09 \ g \ H_2SO_4}{1 \ mol \ H_2SO_4} )[/tex] = 9.80042 g H₂SO₄

Step 4: Check

We are given 1 sig fig. Follow sig fig rules and round.

9.80042 g H₂SO₄ ≈ 10 g H₂SO₄

Answer:

photosynthesis occurs so the plants can create energy from carbon dioxide and sunlight.  

Explanation:

so basiclly it occurs so the plants can create energy to stay alive.

Answer:

Explanation:

photosynthesis occurs basically to help plants get light in order to produce its necessary daily production of nutrients needed for animals to get carbohydrates froms which is eaten by animals since it gives energy. so basically photosynthesis--> energy --> carbs for mammals to eat!

the green colour reflects off the plant so it is not absorbed by the chloroplasts  rather all colours are absorbed just not green.

and every organic material on earth is produced by these cells which convert energy from the sun into nutrient filled plants.. its essential for the CO2 cycle ,  and since they conduct photo synthesis they are lowest level in the food chain so basically its important since they create nutrients for our plants.

Answer:

y or z one of those two i think its z but im so sorry if im wrong if not z then try y also I learned this last year.

Answer:

1. rolled paper tubes filled with black powder (also called gunpowder), are made.

2. Sometimes they are filled with flash paper and a fuse.

3. When the fuse of a firecracker gets lit, the fire burns along the fuse.

4. Then it eventually reaches the powder, and explodes.

Explanation:

Answer:

500g

Explanation:

Just divide by all the numbers and the one that equals 1.6 is the answer

Answer:The limestone began to form millions of years ago, when the land was under the ocean. The rock developed from shells of tiny organisms that float in the ocean. ... However, in the case of reefs, the limestone is produced directly as coral organisms build their skeletons one on top of another.

Answer:

D. 1 C, 4 O and 4 H

Explanation:

a p e x, just took the quiz

According to  law of conservation of mass, the  set of atoms that must make up the equation's reactants is  1 C, 4 O and 4 H.

According to law of conservation of mass, it is evident that mass is neither created nor destroyed rather it is restored at the end of a chemical reaction .

Law of conservation of mass and energy are related as mass and energy are directly proportional which is indicated by the equation E=mc².Concept of conservation of mass is widely used in field of chemistry, fluid dynamics.

Law needs to be modified in accordance with laws of quantum mechanics under the principle of mass and energy equivalence.This law was proposed by Antoine Lavoisier in the year 1789.

Learn more about law of conservation of mass,here:

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Answer:

Explanation:

[tex]\mathrm {Hey, there!}[/tex]

Let's solve your problem -

The answer to the question is 4.18 10^7.

Here is my clarification/explanation to support:

To convert a standard number to scientific notation, we have to move the decimal point up until we have a 1 digit number.

When we keep moving the decimal point, we get 4.18

Now, we will count the numbers after the 8 to get the 10 area.

There are five numbers after the 8, so we get 10^5.

Now, we will add 2 more to the 5, we get 10^7

Our answer will be: 4.18 10^7

[tex]\mathrm {Best, of, Luck!}[/tex]

Answer:

what She said but better

Answer:

Fractional distillation

Explanation:

The separation of gasoline from crude oil by heating until it reaches its boiling point is a separation technique called fractional distillation.

Answer:

1.BaCO3 2.MgBr2 3.aluminum and oxygen 4.Potassium chloride

Explanation:

Answer:

C3H6O + 4O2 → 3CO2 + 3H2O or 11

Explanation:

Answer:

11

Explanation:

Answer:

68000J/kg

Explanation:

Given parameters:

 Mass of the substance  = 0.5kg

 Quantity of heat transferred to the body  = 34000J

Unknown:

Specific latent heat of fusion = ?

Solution:

The specific latent heat is usually involve in phase changes;

  H  = mL

H is the quantity of heat supplied

m is the mass

L is the specific latent heat

 Insert the parameters and solve;

     34000 = 0.5 x L

         L  = [tex]\frac{34000}{0.5}[/tex]   = 68000J/kg

Answer:

crushing an ice cube

Explanation:

crushing an ice cube can be redone by freezing it again in its position

Answer:

3. Texture.

Explanation:

Igneous rocks texture refers to the size of minerals in the rock, which is assessed by how visible they are to the naked eye.

Answer:

Giant cave systems have formed through the reaction of acids with carbonates the that make up limestone. Caves are formed as a result of dissolution of limestone, through a type of chemical weathering known as carbonation.

Explanation:

.

Answer:

It's C: Carbonates

Explanation:

Its on ed

The volume at 100 mmHg : 0.656 L

Boyle's Law  

At a constant temperature, the gas volume is inversely proportional to the pressure applied  

[tex]\rm p_1V_1=p_2.V_2\\\\\dfrac{p_1}{p_2}=\dfrac{V_2}{V_1}[/tex]

V₁=3.5 L

P₁=2.5 kPa=18,7515 mmHg

P₂=100 mmHg

[tex]\tt \dfrac{18.7515}{100}=\dfrac{V_2}{3.5}\\\\V_2=\dfrac{18.7515\times 3.5}{100}=0.656~L[/tex]

Answer:

The same amount of atoms (3 carbon atoms, 6 oxygen atoms, and 4 hydrogen atoms).

Explanation:

According to the law of conservation of mass, when a chemical reaction takes place there is no synthesis or degradation of matter, that is, matter can be neither created nor destroyed. It can only be transformed.

Therefore, in a chemical reaction the atoms are conserved. That means that the elements that in definite proportions are forming a compound, will reorganize to form new compounds, and the amount and type of atoms of the products will be the same as the reactants.

In summary, if the reactants in a chemical equation have 3 carbon atoms, 6 oxygen atoms, and 4 hydrogen atoms, the products of the chemical equation will have 3 carbon atoms, 6 oxygen atoms, and 4 hydrogen atoms as well.

Answer:

H₂ + Cl₂ → 2HCl

Explanation:

The equation that is balanced and follows the law of conservation of mass is:

 H₂ + Cl₂ → 2HCl

Based on the law of conservation of mass "in a chemical reaction, matter is neither created nor destroyed but they combine with one another".

It suggests that the number of species on both sides of the expression must be the same.

 For the given reaction:

        H₂ + Cl₂ → 2HCl

             Reactant side              Product side

H                  2                                   2

Cl                  2                                   2