. Which of the following statement is FALSE about gas particles? a. Gases expand to fill their container. b. Gases increase in movement when temperature increases Gases are in constant rapid motion. d. Gas particles are packed tightly together. please hurry​

Answers

Answer 1

Answer:

D

Explanation:


Related Questions

calculate the ph of a solution whose(oh^-) is 4.583*10^-5 mole dm cube (pkw=14)​

Answers

pH of solution = 9.661

Further explanation

pH is the degree of acidity of a solution that depends on the concentration of H⁺ ions. The greater the value the more acidic the solution and the smaller the pH.

pH = - log [H⁺]

So that the two quantities between pH and [H⁺] are inversely proportional because they are associated with negative values.

pOH=-log[OH⁻]

[tex]\tt pOH=-log[4.583\times 10^{-5}]\\\\pOH=5-log~4.583=4.339[/tex]

pH+pOH=pKw

[tex]\tt pH=14-4.339\\\\pH=9.661[/tex]

Which part of the atom can be transferred from one atom to another to form
ions?
a. Protons
b. Neutrons
c. Valence Electron
d. Nucleus

Answers

Answer:

Explanation:  Valance Electron

Please help me how do i solve this

Answers

Answer:120

Explanation:2gfdxxfgngfnf

Directions: Read through each scenario and identify the independent variable, dependent variable, and the control.

Question 1

1 pts

Rob is in charge of waxing the floor at the local mall. He wants to test a new brand of floor wax called

Squeaky Clean. Rob waxes 20 floor tiles with Squeaky Clean and 20 tiles with the original wax brand.

After one week he counts the number of scratches on the floor. What is the independent variable?

number of floor scratches

brand of floor wax

20 tiles with original brand wax

Answers

Answer:

The correct answer is - brand of floor wax.

Explanation:

The independent variable is the variable or the factor in an investigation which is manipulated or change in the experiment and affects the dependent variable and produces a various result.

In this investigation, there are different brands of the floor was are the independent variable as they are changed to see the effect on the scratches on the floor on 20 tiles for each brand.

Is vacuole a plant or animals cell

Answers

Answer:

plant

Explanation:

let me know if correct

Niels Bohr’s model of the atom helped to explain

Answers

Answer:

a theory for the hydrogen atom based on quantum theory that energy is transferred only in certain well defined quantities. Electrons should move around the nucleus but only in prescribed orbits.

Explanation:

Please Help!!!

Which of the following is not a good indication that a chemical change has occurred?
A. The formation of gases
B. A change in color
C. A scratched surface
D. The release heat or light​

Answers

Answer:

C.

Explanation:

Which of these is an example of chemical separation of a substance?
-Distillation
-Magnetism
-Paper Chromatography
-Bond breaking

Answers

Answer:

Bond broking

Explanation:

Bond broking.

How many grams are equal to 0.11 mole of copper(I) chromate?

Answers

Mass of Copper(I) chromate( CuCrO₄) = 19.75 g

Further explanation

The mole is the number of particles contained in a substance

1 mol = 6.02.10²³

Moles can also be determined from the amount of substance mass and its molar mass

[tex]\tt \large{\boxed{\bold{mol=\dfrac{m(mass)}{MW(molecular~weight)}}}[/tex]

0.11 mole of Copper(I) chromate( CuCrO₄) ⇒ MW=179.54 g/mol, so mass :

[tex]\tt mass=mol\times MW\\\\mass=0.11\times 179.54\\\\mass=19.75~g[/tex]

Why is NCl3 not soluble in water?

Answers

Answer:

Explanation:

NCl3 does not dissolve in water because it is a nonpolar molecule which is different with water. NCl3 is nonpolar due to the difference in electronegativities between 3 atoms of Cl and 1 atom if N2.

Answer:

A polar solute dissolves into a polar solvent and a non-polar compound dissolves into a non-polar solvent, this rule is known as "like dissolves like".

Which of the following best describes a hypothesis?
A. An explanation that is supported by scientific data
B. A proven explanation for experimental results
c. A possible answer to a scientific question
D. A question about the natural world
please help i will give brainliest

Answers

It’s C because hypothesis is what u think would happen in the experiment
It is most definitely C, A hypothesis is a prediction before an experiment occurs

Which of these changes to a modern lifestyle would promote the
development of more-sustainable practices in the world food system?
O A. Switching from chicken to beef
B. Eating fewer processed foods
O C. Buying tropical fruits
D. Eating fresh vegetables year-round

Answers

I think it’s B. At least that’s what makes sense to me

Eating fewer processed foods would promote the development of more-sustainable practices in the world food system.

What are Processed food?

This is the food which has undergone some degree of alteration during preparation such addition of preservatives etc.

Eating less of it will ensure that more sustainable practices in the world food system are promoted.

Read more about Processed food here https://brainly.com/question/21201084

#SPJ2

1. Why is soil erosion relatively less in dense forests as compared to barren, open fields?

Answers

Because the deep roots of big trees hold the soil and don't let it slip away simply by rain or wind.

Answer:

the roots of the trees keep the soil in place opposed to a barren landscape that has little to no plants to keep the soil in place

hope this helps (╹ڡ╹ )

Hydrogen bond is not formed by 1) oxygen 2) nitrogen 3) chlorine
PLEASE HELP!!!

Answers

Answer:

Input work is the work done on a machine as the input force acts through the input distance. This is in contrast to output work which is a force that is applied by the body or system to something else. Output work is the work done by a machine as the output force acts through the output distance.Jan 15, 2020 bahsgsh bvshgs d hg

If 150 G of war started burning 300 G of where as was left behind how many grams of CO2 gas is released

Answers

Answer:

geruow0irghvn3p0unhie0ghik

Explanation:

how many sig figs are in 0.0093

Answers

Answer:

there are two significant figures

Explanation:

Answer:

there are two

Explanation:

because the zeros dont count

After pollen grows on a tube down the style,___

Answers

Answer:

as soon as the pollen reaches the stigma after the pollen grain descends down the style when the pollen tube grows into the ovule when the seed germinates

Explanation:



In lab you reacted 60 grams of propane (C3H8) with 13 grams of oxygen gas (O2). Your

reaction made 63 grams of water (H2O). The reaction is shown below:

How much carbon dioxide (CO2) is released into the air?

C3H8 + 5O2 ------> 3CO2 + 4H2O

10 g

73 g

120 g

1368

Answers

Answer:

120g

Explanation:

Based on the reaction, when 1 mole of propane and 5 moles of oxygen react, 3 moles of CO2 and 4 moles of H2O are produced. The ratio of production is 3 moles of CO2 per 4 moles of H2O.

Thus, we need to convert mass of water to moles using its molar mass:

Moles H2O (Molar mass: 18g/mol):

63g H2O * (1mol / 18g) = 3.5 moles H2O

Converting to moles of CO2:

3.5 moles H2O * (3 moles CO2 / 4 moles H2O) = 2.625 moles CO2

Mass CO2 (Molar mass: 44g/mol):

2.625 moles CO2 * (44g / mol) = 115.5g of CO2 are released

120g

What color are the stars on the diagram with the lowest surface temperatures?

Answers

Answer:

red supergiants is the answer

Use the model to answer the question.
Which element symbol actually represents the model?

Plz answer

Answers

Answer:

B

Explanation:

Boron has 5 protons.

write the complete balanced equation for the decomposition of AI(CIO3)3.

Answers

Answer:

2AL(ClO3)3 → 2ALCl3 + 9O2

Explanation:

The density of lead is 11.4g/cm3. What volume, in ft3, would be occupied by 10.0 g of lead?

Answers

Answer:

The volume is 3.09 ft^3.

Explanation:

The formula for volume is mass divided by density. 10.0 g / 11.4 g/cm^3 = 0.87719. Converted to cubis foot is 3.09 ft^3. I hope this helps you.

how do i caculate velocity

Answers

Answer:

Velocity Equation in these calculations:

Final velocity (v) of an object equals initial velocity (u) of that object plus acceleration (a) of the object times the elapsed time (t) from u to v.

Explanation:

Which of the following subatomic particles are found surrounding the nucleus and have a negative charge?

F negatrons

G neutrons

H protons

J electrons

Answers

Answer:

J electrons

Explanation:

Electrons are the negatively charged subatomic particles that surrounds the nucleus of an atom.

Electrons occupy the bulk volume of an atom. These particle was discovered by J.J ThomsonThey found orbiting the extra-nuclear space of every atom. The nucleus is made up of protons and neutrons.

An isotope of Cesium -137 has a half-life of 30 years. If 1.0 g of Cesium – 137 disintegrates over a period of 60 years, how many grams of Cesium- 137 would remain?

Answers

Answer:

Explanation:

Radioactive decay follows the equation:

Ln [A] = -kt + ln [A]₀

Where [A] is amount of isotope after time t: Our incognite,

k is rate constant: ln 2 / Half-life = 0.0231 years⁻¹

t are 60 years

[A]₀ is initial amount of isotope: 1.0g

Replacing:

Ln [A] = -kt + ln [A]₀

Ln [A] = -0.0231 years⁻¹*60 years + ln 1.0g

ln [A] = -1.386

[A] = 0.25g

6H2 represents how many atoms of hydrogen?

Answers

Answer:

i think its 12, but i'm not 100% sure

Explanation:

Dating of Rock Layers
Answer all 12 questions relating to the images below
English (US)
100

Answers

Answer:

I'm sorry, we need the image to answer  it.

Explanation:

List the elements that make up the compound copper sulfate

Answers

The elements that make up copper sulfate are copper and sulfate

What will happen to the flow of blood in blood vessels (pulse) if heart beat rate increase

Answers

Answer:

"Low levels of the hormone epinephrine, also called adrenaline, cause blood vessels to relax and widen. High levels of this same hormone, along with the hormone norepinephrine, cause the blood vessels to narrow and the heart rate to rise, increasing blood pressure."

Explanation:

When propane is reacted in the presence of oxygen gas, the products of this combustion reaction are: A. CO + H2O B. CO2 + H2O C. C2H4 + H2O D. CH4 + H2O

Answers

Answer:

B. CO2 + H2O

Explanation:

Propane is an hydrocarbon as it contains only v=carbon and hydrogen atoms.

Whenever an hydrocarbon reacts with oxygen or undergoes a combustion reaction, two products are always formed only,

These two products are;

Carbon dioxide (CO2) and water (H2O)

This means the correct option is option B.

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