Chemistry High School

If two kids kick the ball at the same time what is the motion on the ball will do?​

If Two Kids Kick The Ball At The Same Time What Is The Motion On The Ball Will Do?

Answers

Answer 1

Explanation:

I think your correct it's A!!

Related Questions

Question 5
Which of the following is not an example of mutualism?

Answers

i think the last one
I’m pretty sure it’s the last one

PLEASE ANSWER ASAP (WILL GIVE BRAINLIEST)
What do we call the invisible force exerted by magnets?

A. Magnetic force

B. Electromagnetic force

C. Electric force

D. Applied force

Answers

Answer:

Magnetic Forceeeeeeeeeee

I need help with number 5 pleaseee

Answers

Answer: the answer is d

Explanation:

Decane + Dioxygen = Carbon Dioxide + Water

Reaction Type

Combustion

How many atoms are found in a 15.5 g sample of bismuth?

Answers

Answer:

4.47 x 10²² atoms

Explanation:

Given parameters:

Mass of Bismuth  = 15.5g

Unknown:

Number of atoms  = ?

Solution:

To find the number atoms, first solve for the number of moles in this element first.

  Number of moles  = [tex]\frac{mass}{molar mass}[/tex]    

  Number of moles  = [tex]\frac{15.5}{209}[/tex]    = 0.074mole

So:

        1 mole of a substance contains 6.02 x 10²³ atoms

     0.074 mole of Bismuth will contain 0.074 x 6.02 x 10²³ atoms

                                                          = 4.47 x 10²² atoms

WILL GIVE BRAINLIEST
Select all the correct answers.

Which of these are examples of mixing and separating?

removing seed casings from grains

a soda bottle bubbling when it is opened

a bright copper statue turning green from weathering

removing salt from seawater

water decomposing to oxygen and hydrogen

Answers

Answer:

Removing seed casings: separating

Soda bottle bubbling when opened: mixing as before it was opened nothing was happening but as it came in contact with atmosphere it started to bubble.

Bright copper statue turning green from weathering: mixing as all vapors and gases in atmosphere combined with copper of that statue they started to change color of statue

Removing salt from seawater: obviously removing as one component  Water decomposing: obviously separating as it's constituent elements are removed from compound and converted into individual elements

Do liquids have kinetic energy? Yes or no.

Answers

Answer:

YESSIR

Explanation:

Why is it that the decomposition of nitroglycerin can result in so
much more volume than the decomposition of sodium azide?

Answers

Answer:

with the molecular formula C3H5(ONO2)3, has a high nitrogen content (18.5 percent) and contains sufficient oxygen atoms to oxidize the carbon and hydrogen atoms while nitrogen is being liberated, so that it is one of the most powerful explosives known.

Explanation:

NTG reduces preload via venous dilation, and achieves modest afterload reduction via arterial dilation. These effects result in decreased myocardial oxygen demand. In addition, NTG induces coronary vasodilation, thereby increasing oxygen delivery.

The decomposition of nitroglycerin can result in so much more volume than the decomposition of sodium azide nitroglycerin contains a lot of nitrogen (18.5%) and has enough oxygen atoms.

What is volume?

A measurement of three-dimensional space is volume. It is frequently expressed quantitatively using SI-derived units, like the cubic metre or litre, or different imperial or US-standard units, including the gallon, quart and cubic inch. Volume and length (cubed) have a symbiotic relationship.

The total volume much a container is usually thought of as its capacity, not as the amount of space it takes up. In other words, the volume is the quantity of fluid (liquid or gas) that the container may hold. The decomposition of nitroglycerin can result in so much more volume than the decomposition of sodium azide nitroglycerin contains a lot of nitrogen (18.5%) and has enough oxygen atoms for the nitrogen to be liberated while also oxidising the hydrogen and carbon atoms.

Therefore, the decomposition of nitroglycerin can result in so much more volume than the decomposition of sodium azide nitroglycerin contains a lot of nitrogen (18.5%) and has enough oxygen atoms.

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The movement of broken down pieces of rock from one place to another is called

A. Deposition
B. Erosion
C. Weathering
D. Sediment

Answers

Answer:

The answer I believe is B. Erosion

Explanation:

Just sounds better than all the other choices.

Answer:

erosion b

Explanation:

it breaks down the rocks i remembered this in 4th grade :)

why does the d block start in the fourth row of the periodic table

Answers

Answer:

Why does D-block start on the fourth row of the periodic table?

Explanation:

The require more energy to reach 3d than 4s, and they fill up 4p before 4d, and so forth. ... The energy is lower for 6s than 4f, and 4f and 5f are lower in energy than the final D level.

Write the formula: carbon hexabromide

Answers

Answer: C2Br6

Explanation:

What kind of factors are light, temperature, and soil composition?

A. biotic

B. habitat

C. abiotic

D. ecological

Answers

Answer:

Abiotic factors.

Explanation:

It c abiotic factors

How many moles of each element (C, H, and O) are present in a 100.0 g sample of
ethanol?

Answers

Answer:

2.173 moles of ethanol is presented in a 100.0g sample of ethanol .

Explanation:

The amount of substance that contains as many Particles as there are atoms in exactly 12g of carbon- '12 isotope is called 1 mole '= 46 u.

Something that is made out of natural resources for human use is called

Answers

Answer: Man Made Resources?

Explanation: Its when humans create their own things.

What is the sequence of coefficients that will balance the following decomposition reaction of dihydrogen monosulfide? H₂S ----> H₂ + S₈

Answers

8 S

In this case you must start balancing the sulfur to have 8 on each side of the reaction. So:

Answer:

Explanation:

The law of conservation of matter states that since no atom can be created or destroyed in a chemical reaction, the number of atoms that are present in the reagents has to be equal to the number of atoms present in the products.

Then, you must balance the chemical equation. For that, you must first look at the subscripts next to each atom to find the number of atoms in the equation. If the same atom appears in more than one molecule, you must add its amounts.  

The coefficients located in front of each molecule indicate the amount of each molecule for the reaction. This coefficient can be modified to balance the equation, just as you should never alter the subscripts.

By multiplying the coefficient mentioned by the subscript, you get the amount of each element present in the reaction.

Then, taking into account all of the above, you can determine the amount of elements on each side of the equation:

Left side: 2 H and 1 S

Right side: 2 H and 8 S

In this case you must start balancing the sulfur to have 8 on each side of the reaction. So:

8 H₂S → H₂ + S₈

Now the amount of elements on each side of the equation:

Left side: 16 H and 8  

Right side: 2 H and 8 S

Now you need to start balancing the hydrogen to get the same amount from each side of the reaction. So:

8 H₂S → 8 H₂ + S₈

Now the amount of elements on each side of the equation:

Left side: 16 H and 8  

Right side: 16 H and 8 S

The balanced reaction is:

8 H₂S → 8 H₂ + S₈

1. Ammonia gas occupies a volume of 450. ml at a pressure of 720, mm Hg. What
volume will it occupy at standard pressure?

Answers

Answer:

720+450 = 1170 it's 1170

426.32mL (rounded)

The formula for finding V2 is P1 • V1/P2 and since standard pressure (1atm) is equal to 760 P2 would be 760.

720mmHg • (450mL/760mmHg) = 426.32mL

This coffee pot has a temperature of 23 degrees. The coffee cup was put in the microwave and is now 45 degrees. Which one has a greater thermal energy?

Answers

Answer:

. Which one has a greater thermal energy?

the coffee cup

Will these groups of elements form ionic or molecular compounds? sodium and Iodine 

Answers

Answer:

Ionic

Explanation:

Answer:

carbon and hydrogen are molecular

Explanation:

One mole of silver has a mass of 107.9 grams. Approximately how many atoms of silver are present in one mole of silver?

A) 107 atoms
B) 108 atoms
C) 6 × 1023 atoms
D) 53 × 1023 atoms

Answers

Answer  C) 6 × 1023 atom

The number of silver atoms present in one mole of silver is 6.0 × 10²³ atoms. The correct option is C) 6 × 1023 atoms

Stoichiometry

From the question, we are to determine the number of silver atoms present in one mole of silver.

From the formula,

Number of atoms = Number of moles × Avogadro's constant

Number of atoms = 1 × 6.022 × 10²³

Number of atoms = 6.022 × 10²³

Number of atoms ≅ 6.0 × 10²³ atoms

Hence, the number of silver atoms present in one mole of silver is 6.0 × 10²³ atoms. The correct option is C) 6 × 1023 atoms

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18. What is the molarity of a bleach solution containing 9.5 g of NaOCL per liter of bleach

Answers

Answer:

0,1276 M

Explanation:

Molair mass of NaOCl = 74,44 g/mol

You have 9,5 g/L.

You need to calculate with the molair mass, how many moles 9,5 g are:

9,5 g / 74,44 g/mol = 0,1276 mol

0,1276 mol / 1 L = 0,1276 M

The molarity of a bleach solution containing 9.5 g of NaOCL per liter of bleach is mathematically given as

M= 0.1276 M

What is the molarity of a bleach solution containing 9.5 g of NaOCL per liter of bleach?

Generally, the equation for the  Molar mass  is mathematically given as

M=m/(g/mol)

Therefore

M=9,5 g / 74,44 g/mol

M= 0,1276 mol

Hence

M= 0.1276 M

In conclusion, the molarity

M= 0.1276 M

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If you took a spoonful of tea out of the cup, which would be more painful if it spilled on you? *

Answers

Based on my understanding of this question in my opinion atleast small sharp pain is worse so the cup would be more painful as it would spread that sensation over a large part of the body. (Hope this helps have a great day)

How many moles of solute are in 250 mL of 2.0 M CaCl2? How many grams of CaCl2 is
this?

Answers

Answer:The solution contains 0.50 mol or 55 g of CaCl2 . You know there are 2.0 mol of CaCl2 in 1 L of solution. (40.08 + 2 × 35.45) g=(40.08 + 70.90)

g=110.98 g

Explanation:

My I please have brainliest

110.98 grams of CaCl₂ is there present in 2.0 M CaC₂.

What is calcium chloride?

Calcium chloride is made up of calcium and chloride.

Given, that the solution contain 250 mL of 2.0 M CaCl2

You know there are 2.0 mol of CaCl2 in 1 L of solution.

(40.08 + 2 × 35.45) g

= (40.08 + 70.90)

=110.98 g

Thus, 110.98 grams of CaCl₂ is there present in 2.0 M CaC₂.

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4. How much water would be needed to dilute at 750 ml solution of 2.8M HCl to a 1.0 M solution?


5. If 550 mL of a 3.50 M KCl solution is left out to evaporate until the volume is 275 mL, what would the
new Molarity be?


6. Extra Credit: A solution of H,SO, has a molarity of 0.14 mol/L in 750 mL. If 250 mL of water is added:
a. What is the new molarity of the solution?


Three questions in 1 less see how good Brainly really is

Please helllpppp meeee

Answers

i’m not sure but i hope u figure it out

Why did Mendeleyev try to reorganize the periodic table?

Answers

Mendeleev’s chart allotted spaces for elements that were yet to be discovered. For some of these missing pieces, he predicted what their atomic masses and other chemical properties would be.

Calculate the [H⁺] if the [OH⁻] is 1.0 × 10⁻⁵ M.

Answers

Answer:

ithink it is 9.0

Explanation:

HELPPPPPPPPPPP HELPPPPP HELP ​

Answers

Answer:

calcium chloride and water

Explanation:

the reaction absorbed energy which means endothermic

Substance X is extremely acidic. Substance Y is extremely basic. What would be formed if substance X and Y were mixed together?

Answers

Answer:

salt will form bcz when acids reacts with base then it forms salts . and this reaction is called neutralization reaction

Which type of model is a way of imagining how something works?​

Answers

Answer:

mental model is an explanation of someone's thought process about how something works in the real world. It is a representation of the surrounding world, the relationships between its various parts and a person's intuitive perception about his or her own acts and their consequences. Mental models can help shape behaviour and set an approach to solving problems (similar to a personal algorithm) and doing tasks.

:)

What happens to the average kinetic energy at a constant temperature? *

1.it increases
2.it decreases
3.it stays the same
4.it disappears

Answers

The answer is A, it increases.


As the temperature increases, the average kinetic energy increases as does the velocity of the gas particles hitting the walls of the container. The force exerted by the particles per unit of area on the container is the pressure, so as the temperature increases the pressure must also increase.

What type of reaction is the following?
1 Mg(s) + 2 HCl(aq) → 1 MgCl2 (aq) + 1 H2 (9)
O Combustion
O Decomposition
O Double Replacement
O Neutralization
O Single Replacement
O Synthesis

Answers

Single Replacement

Further explanation

Given

Reaction

Mg(s) + 2 HCl(aq) → MgCl2 (aq) + H2 (g)

Required

Type of reaction

Solution

A single replacement reaction is a chemical reaction in which one element replaces the other elements of a compound to produce new elements and compounds

General formula :

A + BC ⇒ AC + B

Not all of these reactions can occur. We can use the activity series(the Volta series)

The more left the position of a metal in the series, the more reactive metal (easy to release electrons, the stronger the reductor)

Write the balanced equation for : potassium chlorite decomposing to potassium chloride and oxygen . (use —> for the arrow)

Answers

Answer: 2 KCIO3(s) + heat —> KCI (s) + 3 O2(g)

Explanation:

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