Sample Response: Forces are either positive or negative vectors, depending on the direction in which the force is acting. The net force is the sum of all of the forces acting on an object. If the children pull on the toy with the same force in opposite directions, the forces will be perfectly balanced and cancel out, leaving a net force of zero.

What did you include in your response? Check all that apply.

Forces are vectors.
Forces can be positive or negative.
The forces exerted by the children are in balance.
The net force is the sum of all of the forces that canceled out to zero.

Answer:

Increases

Explanation:

The general effect we see as temperature increases is that rate of dissolution of a solid solute increases,

Therefore, we can say that :

Temperature ∝ Rate of dissolution

The molar mass of the gas with the given mass and volume at the given temperature and pressure is 16.00g/mol.

From the Ideal gas law or general gas equation;

PV = nRT

Where P is pressure, V is volume, n is the amount of substance, T is temperature and R is the ideal gas constant ( 0.08206 Latm/molK )

Given that;

First, we determine the amount of gas;

PV = nRT

n = PV / RT

n = ( 0.98026atm × 3.97L ) / ( 0.08206 Latm/molK × 294.15K )

n = 3.8916Latm / (24.137949Latm/mol)

n = 0.1612mol

Molar Mass = Mass of the gas / Amount of the gas

Molar Mass = m / n

Molar Mass = 2.58g / 0.1612mol

Molar Mass = 16.00g/mol

Therefore, the molar mass of the gas with the given mass and volume at the given temperature and pressure is 16.00g/mol.

Learn more about ideal gases here: brainly.com/question/15634266

#SPJ1

Answer: 558.5545 g

Explanation:

The formula for a sulphate ion is [tex]\text{SO}_{4}^{\text{ }2-}[/tex], so the formula for copper sulphate is [tex]\text{CuSO}_{4}[/tex].

This means the formula mass of copper sulphate is:

So, in 3.5 moles, the mass is (159.587)(3.5)=558.5545 g

Answer:

I think yes

Explanation:

sorry i havent done these type a questions in a while

In general, the formation of a chemical bond lowers the potential energy of a chemical system, leading to a more stable arrangement.

Stored energy depends upon the relative position of various parts of a system.

In bond formation, atoms lose their potential energy to attain stability and heat is evolved. The bond formation is an exothermic reaction.

Atoms bond together to form compounds to attain lower energies than they possess as individual atoms.

A quantity of energy is equal to the difference between the energies of the bonded atoms and the energies of the broken atoms.

Learn more about the potential energy here:

https://brainly.com/question/24284560

#SPJ1

The demand for almond milk decreases because of a change in price from $5 to $10. Details about demand can be found below.

Demand refers to the amount of goods a consumer is willing and able to buy at a given price and at a particular time.

Several factors can affect the demand of a particular good. According to this question, the price of a gallon of almond milk increases from $5 to $10, so people start buying more oat milk as an alternative.

Therefore, it can be said that the demand for almond milk decreases because of a change in price from $5 to $10.

Learn more about demand at: https://brainly.com/question/14741584

#SPJ1

Answer:

decreased:related goods

Explanation:

ik it seems like decreased:income but i just took the test twice and ik for a fact its c not d

The number of moles of nitrogen gas in each tire would be 1.595 moles

The ideal gas law is represented by the equation:

PV = nRT where P = pressure, V = volume, n = number of moles of gas, R = constant, and T = temperature.

In this case, P = 249 kpa, V = 15.6 L, R = 8.31, and T = 293 K (273 + 20).

n = PV/RT = 249 x 15.6/8.31 x 293 = 1.595 moles

More on ideal gas can be found here: https://brainly.com/question/8711877

#SPJ1

Answer:

The release of energy from fuels is used to make other forms of

energy. When gasoline burns in a car engine, some of the

chemical energy in the gasoline is converted into heat. The heat

is converted into mechanical energy. The mechanical energy

moves the car .

if you know that I am right please mark it as brainliest

Answer:

It is asking for 3 energy conversions like Mechanical energy is one of them

Explanation:

it is chemical change because chemical change occur when bonds are broken or formed between molecules or atoms.

Toxicology is the branch which studies about toxic chemicals and their effects.

Toxicology is the branch in science in which the researches and study are done for finding the effect of the toxic  or poisonous elements on plants , animals , human and earth at large.

High levels of lead exposure is dangerous to humans as it can cause permanent disabilities , it is carcinogenic and hence can lead to death.

This is studied in toxicology.

To know more about Toxicology

https://brainly.com/question/5020436

#SPJ1

Answer:

5.06 half lives

Explanation:

1/2 ^n  = .03             (.03 is 3% in decimal)

                         log both sides

n log 1/2 = log .03

n = 5.06  half lives

Answer:

There is an infinite number of Principal Energy Levels, see the answer for a full explanation

Explanation:

As stated above There is an Infinite number of principal energy levels, yet there are 4 main principles for principal energy; energy levels, sublevel, orbitals, and a number of electrons per sublevel.

Americium is a radioactive element .

The nuclear reaction.is given by

[tex]\rm {}^{241}_{95}Am\longrightarrow {}^{237}_{93}Np+{}^4_2\alpha[/tex]

Here alpha can be written as He too

The equilibrium constant of the reaction is represented by the symbol K. Thus, option C is the correct and accurate statement about the equilibrium constant.

The equilibrium constant is a representation of the concentration of the products and the reactants of the reaction that is raised to the powers through their stoichiometry coefficient.

Its value varies and changes at different temperatures and is not always less than 1. The equilibrium constant is the ratio of the coefficient of the products to reactants.

Therefore, option C. equilibrium constant is represented by K is true.

Learn more about the equilibrium constant here:

https://brainly.com/question/12429748

#SPJ1

Answer:

the daddy and Video Bhai have a

Explanation:

for and or for the if or as or as there have no a of option to go with you 6th and I would love from you to help out in any event that I am from the only reason you would be so close and to me million times is the fact I am from the the only reason you have to do it the way I want it is the best way for us and we are not me million people that are not got to me it's not like they were in a bad place and they didn't want me million other people in my world who made me think about you are

Answer: 0.37 M

Explanation:

[tex]M_{A}V_{A}=M_{B}V_{B}\\(20.4)(0.650)=M_{B}(36)\\M_{B}=\frac{(20.4)(0.650)}{36}=\boxed{0.37 \text{ M}}[/tex]

Some animals would be forced to migrate due to cutting of forest , Option D is the correct answer.

The complete question is

Humans clear-cut a forest. Which is one possible way that animals would most likely be affected by this action? Some animals would adapt. Some animals would go extinct. Some animals would evolve. Some animals would be forced to migrate.

Deforestation means cutting down trees of the forest for wood , or for making more space for living.

Deforestation leads to destruction of habitats of animals .

The balance of the nature gets disturbed , the sea and water bodies get dried up , leading to no water for the animals in the forest.

Animals need big bushes and trees to hide and live.

The Ecosystem gets destroyed because of the cutting of trees by human and so this has lead the animals to migrate.

Therefore Option D is the correct answer.

To Know more about Deforestation

https://brainly.com/question/17178423

#SPJ1

Explanation:

pH= –log¹⁰[H+]

0.50= –log¹⁰[H+]

log¹⁰[H+]=0.50

take the antilog of 0.50

[H+]= 3.16moldm-³

Gay-Lussac's law: [tex]\frac{V1}{T1}[/tex]=[tex]\frac{V2}{T2}[/tex]

We need to convert temperature from Celsius to Kelvin

-55 C = 218 K

30 C = 303 K

V2 = V1*T2 / T1 = 0.550 *303 / 218 = 0.764 l

Answer: a branch of chemistry concerned with the rate of chemical reactions, the factors that influence these rates, and the use of rate studies to clarify reaction mechanisms

Salt and sugar have strong attractive forces whereas oil has weak attractive forces between particles.

The attractive forces between particles in the salt and sugar substances have strong because of its solid state while on the other hand, the attractive force between particles of oil is weak because of its liquid state.

So we can conclude that salt and sugar have strong attractive forces whereas oil has weak attractive forces between particles.

Learn more about force here: https://brainly.com/question/12970081

#SPJ1

The strength of the attractive forces between the molecule of oil, sugar and salt increases from oil to sugar to salt.

The melting point of a substance is the temperature at which the solid substance melts.

The melting point of a substance is a constant for a pure substance.

The higher the attractive forces between the molecules of a substance, the higher the melting point will be.

Between the three substances, oil has the lowest melting point while salt has the highest melting point.

Therefore, the strength of the attractive forces between the molecule of oil, sugar and salt increases from oil to sugar to salt.

Learn more about melting point at: https://brainly.com/question/40140

#SPJ1

Answer:

P3

Explanation:

Im pretty sure hope this helps

The original volume of the gas would be 17.45 L.

For an ideal gas:

  PV = nRT, where P = pressure, V= volume, n = number of moles, T=temperature, and R = constant = 8.317 l•kpa/mol•k

In this case, n = 0.500 mole, T = 273K, P = 65.0 kpa.

Thus:              V = nRT/P = 0.5 x 8.317 x 273/65 = 17.45 L

More on ideal gas can be found here: https://brainly.com/question/8711877

#SPJ1

Answer:

solar radiation

Explanation:

Answer:

1.)

Parent 1:
   Ff (genotype) and free earlobes (phenotype)

Parent 2:
   ff (genotype) and attached earlobes (phenotype)

2.)

Ff and ff (possible genotypes)

Free earlobes and attached earlobes (possible phenotypes)

Explanation:

Phenotypes are the observable traits an organism displays.

Genotypes are the genetic sequences organisms' possess that code for particular traits.

I am assuming that heterozygous individuals (Ff) display the dominant trait (free earlobes). As such, one parent has the Ff genotype and the free earlobe phenotype. The other parent has the recessive genotype (ff) and phenotype (attached earlobe).

50% of the children will have the same genotype and phenotype of one parent and the other 50% will have the same genotype and phenotype as the other parent.

None of the children will have the completely dominant genotype (FF).

Answer:

A thermochemical equation for the combustion of propane (C3H8)(C3H8) is written as follows:

C3H8(l)+5O2(g)→3CO2(g)+4H2O(g);ΔH∘rxnC3H8(l)+5O2(g)→3CO2(g)+4H2O(g);ΔHrxn∘ = -2202.0 kJ/mol

The value given for ΔH∘rxnΔHrxn∘ means that:

a. the reaction of one mole of propane absorbs 2202 kJ of energy from the surroundings.

b. the reaction is endothermic.

c. the enthalpy of formation of propane is 2202 kJ/mol.

d. the reaction of one mole of propane releases 2202 kJ of energy to the surroundings.

e. None of these.

Answer:

Explanation:

i. SO2

ii. Na2O

Answer:

4.03 × 10²² particles of beryllium sulfide.

Explanation:

The formula to find the number of particles is:

Number of particles/atoms = number of moles × (6.02 × 10²³)

6.02 × 10²³ = Avogadro's number

But first, we will have to find the number of moles. This can be found using the formula:

Number of moles = mass ÷ Mr

  Mr of BeS = 9 + 32.1 = 41.1

  Number of moles = 2.74 ÷ 41.1 = 0.067 mol

Now that we know the number of moles, we can find the number of particles.

   Number of particles = 0.067 × 6.02 × 10²³

∴ Number of particles =  4.03 × 10²²

Answer:

4.03 × 10²² particles

Explanation:

Had the same question and got it correct.