Chemistry High School

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Answers

Answer 1

Answer:

it is b

Explanation:

mid ocean ridge diverges meaning it moving in two different direction horizontally - left to right

Related Questions

Helpppp meeeeee plssss

Answers

Answer:

A

Explanation:

the answer is A because when your working cooperative people are helping you and non cooperative is where people are working against you by them selves

Which is the only subatomic particle that can freely move on or off an atom?

Answers

I think this question is talking about electrons (since they flow freely in the electron cloud of an atom).

Which is the term for the different forms of a gene for a given trait?

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Answer:

An allele is a variant form of a gene. Some genes have a variety of different forms, which are located at the same position, or genetic locus, on a chromosome. Humans are called diploid organisms because they have two alleles at each genetic locus, with one allele inherited from each parent.

how can we find out the mass of the marble

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In a collection of marbles, 25% of the marbles have a mass of 5.00 g and 75% of the marbles have a mass of 7.00 g. The average mass of a marble is 6.50 g.

This figure illustrates which of the following? gamma emission
fusion
chain reaction
beta emission

Answers

Answer:chain reaction

Explanation:

If the pressure in the gas tank of the dipper was set very high, the ideal Gas law breaks
down.
Why is this happening?
a) Argon reacts with the walls of the steel vessel at high pressure
b) The molecules would clump together in the center and invalidate the law
c) A steady measurement could not be made as the gas would leak out too quickly
d) The volume occupied by the molecules themselves is no longer negligible

Answers

Answer: d) The volume occupied by the molecules themselves is no longer negligible. This most be the answer because a, b and c don't make any sense at all.

Explanation:

The volume occupied by the molecules themselves is no longer negligible. Hence, option D is correct.

What is an ideal gas equation?

The ideal gas law (PV = nRT) relates the macroscopic properties of ideal gases. An ideal gas is a gas in which the particles (a) do not attract or repel one another and (b) take up no space (have no volume).

The ideal gas law fails at low temperature and high pressure because the volume occupied by the gas is quite small, so the inter-molecular distance between the molecules decreases.

Hence, the volume occupied by the molecules themselves is no longer negligible.

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The increase in the rate of solvation with a rise in solvent temperature is mainly due to a(n)

a. increase in the activaton energy
b. increase in the movement of molecules leading to more collisions.
c. None of the above

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The answer would be b

Why is it dangerous to have electric appliances near you when you are taking a bath?

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Answer:

Because water conducts electricity, so if an electrical current were to meet the water while you're in there taking a bath, you would essentially be surrounded by a huge conductor.

Which of the following balances has the least uncertainty? (PSS.1)
Group of answer choices

platform balance, +/- 0.1 g

analytical balance, +/- 0.0001 g

All balances have the same uncertainty

triple-beam balance, +/- 0.01 g

electronic balance, +/- 0.001 g

Answers

Answer:


Analytical balance


That should be the answer

14. A 70 N tight rope walker is walking 20 meters above ground. About how much Gravitational Potential Energy does the performer have? 1,400 J 1,200 J 800 J

Answers

Answer:

It is 1,400 j

Explanation:

That is what i know

Answer:

1,400J

Explanation:

the formula for calculating Gravitational Potential Energy is mass×gravitational field strength×height

70×10×20=1,400

how might using water somethimes require changing its original state?

Answers

When water changes state in the water cycle, the total number of water particles remains the same. The changes of state include melting, sublimation, evaporation, freezing, condensation, and deposition. All changes of state involve the transfer of energy.

Use the drop-down menu to complete the statement. This is why they have similar Atoms of elements in the same group have the same number of chemical properties. ​

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Periodic table? I don’t really know what you’re options are since there is no picture of the drop down or anything. If you can tell me what the options are, then I can answer more accurately. What you’re describing right now is the periodic table.

Answer:

valence electrons

Explanation:

i just took the test

Explain why most inorganic substances do not burn, yet organic substances will
burn.

Answers

Most inorganic substances do not burn because they do to contain carbon. Organic substances do contain carbon.

What is the potential energy of a rollercoaster if it weighs 1565 kg and sits on a 115 m tall ride?

Answers

Answer:

Explanation:

Potential energy builds as the coaster is going up the loop-the-loop and converts to kinetic energy on the way down and out of the loop-the-loop. The potential energy of the coaster is at its lowest and the kinetic energy is at its highest as the coaster moves in the lowest point of the loop-the- loop.

why an indicator is a necessary part of the titration experiment?

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Answer:

In a titration, you determine an unknown concentration of a sample by adding a second reactant of known concentration. In many titrations, you use a chemical called an indicator, which lets you know when the titration finishes.

Explanation:

which statement best describes the importance of chemical equations while solving stoichiometry problems?

Answers

Answer:

a

Explanation:

A balanced chemical equation shows reacting ratios of all substances involved in reaction in terms of grams which is important while solving stoichiometry problems.

What is chemical equation?

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .

The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.

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write any two equations to illustrate that hydrogen gas is a reducing agent​

Answers

Hydrogen as reducing agent: hydrogen donates its electrons to areduce other substances.
Examples:

•hydrogen reduces acetylene(OS= -1)to ethane(OS= -3).

C2H2+2H2--->C2H6.

•hydrogen reduces bromine(OS=0)to hydrobromic acid(OS=-1).

H2+Br2---->2HBr.

•hydrogen reduces oxygen(OS= 0 )To water (OS= -2).

2H2+O2---->2H2O.

what is the unit for particles of titanium iii oxide
a. Ions
b. Atoms
C: molecules
d. Formula units

Answers

Answer:

d

Explanation:

A man's speed is 50 m/s and his mass is 120 kg. What is his kinetic energy just before running back up? |
kg*m/s

Answers

Answer:

150,000 Joules

Explanation:

KE= 1/2 *mv^2

1/2 * 120 *50^2

60*2500

150,000 Joules

Hope this helps :)

When dissolving a gas, an increase in pressure will result in a(n) ______________ in solubility.

Answers


Liquids and solids exhibit practically no change of solubility with changes in pressure. Gases as might be expected, increase in solubility with an increase in pressure. Henry's Law states that: The solubility of a gas in a liquid is directly proportional to the pressure of that gas above the surface of the solution.

What is the mass of sulfuric acid, h2so4, that is contained in 2.0L of a 5.85 M solution ?
A- 1147.44 grams
B- 0.12 grams
C- 11.7 grams
D- 98.07 grams

Answers

Answer:

A. 1147.44 grams

Explanation:

Multiply volume by molarity to get the moles of solution.

5.85 M = mol/2.0 L

mol = (5.85 M)(2.0 L)

mol = 11.7

There is 11.7 moles of H2SO4.

Convert to grams with molar mass.

11.7 mol H2SO4 x (98.076 g/1 mol) = 1147.49 g

Closest answer is A, 1147.44 g.

Madison is heating two different liquids. For each liquid, she wants to compare the temperatures at which gas bubbles form, rise, and begin to escape. What physical property is Madison using to compare the liquids?Immersive Reader boiling point conductivity melting point solubility

Answers

Answer:

I think its boiling point conductivity

Answer: boiling point

Explanation:

Got it right

How is oxide different from a neutral oxygen atom

Answers

Answer: The main difference between oxide and oxygen is that oxide is a chemical compound with at least one oxygen atom while oxygen is an element whose atomic number is 8.

Explanation: let me know if it was right or wrong

Question
What is the name of the covalent compound with the formula P2N3?

Answers

Answer:

P2N5

Explanation:

you have to plus it 2 times


Balance C12H22011 → C + H2

Answers

Answer:

What is this?

Explanation:

Determine the pH, pOH, [H+], and [OH−] of a solution in which 0.300 g of aluminum hydroxide is dissolved in 184 mL of solution.

Answers

Answer:

[OH⁻] = 0.0627M

pOH = 1.20

pH = 12.8

[H⁺] = 1.59x10⁻¹³M

Explanation:

To solve this question we must, as first, find the molarity of Al(OH)₃ in the solution -Molar mass Al(OH)₃: 78.00g/mol-:

0.300g * (1mol/ 78.00g) = 3.846x10⁻³ moles

In 184mL = 0.184L:

3.846x10⁻³ moles / 0.184L = 0.0209M Al(OH)₃. Three times this molarity = [OH⁻]:

[OH⁻] = 0.0209M * 3

[OH⁻] = 0.0627M

pOH = -log [OH⁻] =

pOH = 1.20

pH = 14 - pOH

pH = 12.8

And [H⁺] = 10^-pH

[H⁺] = 1.59x10⁻¹³M

How many possible Mole Ratios are in the following reaction:
ZnO + 2 HCl --> ZnCl2 + H2O

Answers

Answer: 2 moles

Explanation:

Occurs in many complex organisms such as plants, animals and fungi

Answers

Answer:

DNA

Explanation:

The eukaryotic cell participates in the formation of complex organisms and contains a nucleus, cytoplasmic organelles, and a cytoskeleton.

In a eukaryotic cell, DNA is contained in a compartment called the nucleus, which is enclosed by a membrane.

The answer should be DNA based on the wording of the question. Hopefully this helped a little bit.

an substance that is being dissolved by another object?​

Answers

Answer:

Solute - The solute is the substance that is being dissolved by another substance. In the example above, the salt is the solute. Solvent - The solvent is the substance that dissolves the other substance.

Explanation:

Which of Graphs 1 correctly represents the relationship between the pressure and volume of a gas?

Answers

Answer:

D

Explanation:

pressure is inversely proportional to gas volume

Other Questions
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