Which phrase provides the best definition of mass movement?

the movement of material caused by erosion
the slow flow of a glacier as it moves through the valley of a mountain
the movement of large amounts of soil and rock debris down a slope
the fast movement of a boulder rolling down a slope

Answers

Answer 1
The movement of large amounts of soil and rock debris down a slope
Answer 2

Answer:

the movement of large amounts of soil and rock debris down a slope

Explanation:

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Related Questions

What does the questions “how much?” and “how many?” have in common?

Answers

They both ask for an amount of something

What volume of oxygen gas at 20°C and 0.919 atm is
consumed in the production of 5.00 g of iron(III) oxide from
metallic iron?
4Fe(s) + 302(g) → 2Fe2O3 (9)
LO2​

Answers

Answer:

Volume of oxygen gas is 78.47L

Explanation:

Data;

Temperature (T) = 20°C = (20 + 273.15)K = 293.15K

Pressure (P) = 0.919atm

Mass (m) = 5g

Volume (v) = ?

Equation of reaction;

4Fe + 3O₂ → 2Fe₂O₃

From the equation of reaction, the number of moles of oxygen is 3.

To find the volume of oxygen produced, we'll have to use ideal gas equation

PV = nRT

P = pressure

V = volume

n = number of moles

R = ideal gas constant = 0.082J/mol.K

T = temperature of the ideal gas

PV = nRT

V = nRT/ P

V = (3 × 0.082 × 293.15) / 0.919

V = 72.1149 / 0.919

V = 78.47L

Volume of the gas is 78.47L

Answer the questions using the drop-down menus.
Which is the independent variable in this experiment?
Which is the dependent variable in this experiment?
Which is a controlled variable in this experiment?

Answers

In the experiment to measure the heat absorbed by a material placed in

the Sun, we have;

The independent variable is either the angle of insulation or the type of materialThe dependent variable is the temperature of the materialThe controlled variable is the type of material when the angle of insulation is the independent variable and vice versa

What differentiates the given experimental variables?

The possible experiment is with regards to the factors that influence energy from the Sun

The factors investigated are;

The type of material and the angle of lighting (insulation) affects the absorption of heat

The independent variable is the variable that is the cause of the effect

measured in the experiment.

It is the variable that the researcher has control over or controls and

varies during the experiment to produce the measured effect.

In the above experiment, the independent variable are either ;

The angle of insulation or the type of material respectively

The dependent variable is the variable that is under test or that is being measured.

In the above experiment the dependent variable is the temperature of the material which can be measured

The controlled variable is the variable that remains the same or is held

constant during the experiment and can be used as reference to

compare the dependent variable.

In the experiment, the controlled variable are either;

The type of material when the angle of insulation is the independent variable or vice versa

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Answer:

angle of light

temperature of material

type of material

Explanation:

E d g e 22 !

Calculate the molar mass of ammonium chloride

Answers

Answer:

53.491 g/mol

Explanation:

Create the chemical compound and find each individual element's molar mass. Lastly, add them up.

A 0.050L solution of Ba(OH)2 is neutralized by 0.072L of a 0.55 M HNO3 solution. What is the concentration of the Ba(OH)2 solution?

Answers

Answer:

0.396M

Explanation:

Step 1:

The balanced equation for the reaction. This is given below:

2HNO3 + Ba(OH)2 —> Ba(NO3)2 + 2H2O

From the balanced equation above,

The mole ratio of the acid (nA) = 2

The mole ratio of the base (nB) = 1

Step 2:

Data obtained from the question. This include the following:

Volume of base (Vb) = 0.05L

Concentration of base (Cb) =..?

Volume of acid (Va) = 0.072L

Concentration of acid = 0.55 M

Step 3:

Determination of the concentration of the base, Ba(OH)2.

The concentration of the base, Ba(OH)2 can be obtained as follow:

Cava /CbVb = nA/nB

0.55 x 0.072 / Cb x 0.05 = 2/1

Cross multiply to express in linear form

Cb x 0.05 x 2 = 0.55 x 0.072

Divide both side by 0.05 x 2

Cb = (0.55 x 0.072) / (0.05 x 2)

Cb = 0.396M

Therefore, the concentration of the base, Ba(OH)2 is 0.396M

(02.02 MC)
How is Earth's surface most likely to change in a place that experiences strong sand storms?

Answers

Answer:

Mechanical weathering will cause wearing down of rocks.

Explanation:

All the other choices aren't suitable for a dry climate where sand storms occur.

What mass in grams of hydrogen is produced by the reaction of 2.0 g of magnesium? (Make sure to balance the reaction first)
Mg(s) + H2O(1) --> Mg(OH)2(s) + H2 (8)

Answers

Answer:

0.164541341 g H2

Explanation:

1) Convert grams to moles by dividing by RMM of Magnesium (24.31g).

  2g Mg * (1 mol Mg / 24.31 g Mg) = 0.082270671 mol of Mg

2) Use the balanced equation's ratio of 1 mol Mg: 1 mol H2.

  0.082270671 mol of Mg = 0.082270671 mol of H2

3) Convert the mol of H2 back into grams by multiplying by H2's RMM (2 g).

  0.082270671 mol of H2 * 2 g H2 = 0.164541341 g H2

* Answer can be rounded to your liking *

Do liquids have higher coefficients of expansion than solids do

Answers

Answer: yes they do.

Explanation:

I'm tryna get more points because my other account got blocked for the next 48 hours.

(Don't be mad at me please)

A child has a balloon in his house in the air conditioning. He goes outside with the balloon on a hot day. What happens to the temperature of the gas and volume of the balloon?

Answers

Answer:

There would be an increase in temperature and corresponding increase in the volume of the balloon

Explanation:

Charles law is been here

Charles law  states that the volume of a given mass of gas  is directly proportional to the temperature in Kelvin, provided that the pressure on the gas is kept constant. Mathematically Charles law can be represented thus;

V∝ T

Where V is the volume of the gas and;

T is the temperature.

Relating Charles Law to the question

The child moved outside from the room, constant atmospheric pressure is maintained.The temperature of the room is lower than the temperature outside.

From Charles law postulation, there would be an increase in volume because of the increased temperature, since our pressure is same.

3 hazards that occur in teaching and learning of science

Answers

Acid and nuclear technology that occur in the process of the mitochondria similar to like cancer

1. Calculate the molarity of 35g of calcium chloride (CaCl2) that is dissolved in 850ml of water. (Calculate moles first)

a. 0.27M
b. 0.38M
c. 0.32M
d. 0.80M

2. Calculate the molarity of 90g of copper sulfate (CuSO4) when dissolved in 5 L of water.

a. 0.112M
b. 2.8M
c. 0.56M
d. 0.50M

3. What is the molarity of NaOH if 0.70 moles are dissolved in 250 ml of water?

a. 175,000M
b. 2.8M
c. 0.175M
d. 4M

4. How many moles of Lithium oxide (Li20) are in 2 L of solution with a molarity of 2.0M?

a. 1 mole
b. 2 moles
c. 0.2 moles
d. 4 moles

5. How many moles of NaCl are in 7.5 L of 0.5M?

a. 3.75 moles
b. 15 moles
c. 0.066 moles
d. 2.5 moles​

Answers

Answer:

yo I got same question do u know it

HELP PLEASE I WILL GIVE 100 PONTS
All of the following properties of a solution would decrease if you increased the concentration of solute, EXCEPT which?

A. freezing point
B. boiling point
C. vapor pressure
D. they would all decrease

Answers

Answer:

boiling point

Explanation:

They would all decrease

If a body was lying on their back when they died, and was moved to their front after 12 hours, where would one see the skin discoloration from pooling blood?

Answers

Answer:the parts of the body which is nearest to  the ground ie thier back will show discoloration

Explanation:

If the body remains at a position for long hours, the parts of the body which is nearest to  the ground can develop a skin discoloration as a result of pooling of blood in the tissues and this is called livor mortis, which tends to be permanent from 8Hours upwards.

PLZZZ HELP CHEM!!!!!!! Easy points!!!!!

Answers

Answer:

H+

Explanation:

Answer:

OH-

Explanation:

An Arrhenius base is any species that increases the concentration of

OH


1.

__________ are the most organized state of matter.

Solids

Liquids

Gases

2.

States of matter change when ________ is added or removed.

Plasma

Energy

3.

Which state of matter has the most movement of its particles?

Solid

Liquid

Gas

Answers

1. Solids. The particles in a solid are tightly packed together and can only vibrate from their fixed positions.
2. Energy. Adding in energy makes the particles of a substance vibrate faster, breaking the forces of attraction between them and removing energy makes the particles vibrate slower and forces of attraction forms between the particles.
3. Gas. The forces of attraction between the particles of a gas are very weak. The particles randomly and quickly move around in all directions.

Solids are the most organized state of matter. States of matter change when energy is added or removed. Gas is the state of matter has the most movement of its particles.

What are the states of matter?

The states of matter are the different forms of the matter in which it can exist. They are solids, liquids and gases. Solids are the states of matter in which molecules are very near to each other. They have fixed shape and volume. Liquids is the states of matter in which molecules are a little far from each other. They have different shape and fixed volume. Gas is the states of matter in which molecules are a very far from each other. They have different shape and different volume.

There are two more states of matter which are called as Plasma, Bose Einstein Condensate.

Plasma have highest energy and Bose Einstein Condensate have lowest energy.

Therefore, Solids are the most organized state of matter. States of matter change when energy is added or removed. Gas is the state of matter has the most movement of its particles.

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How many grams of H20 will be formed when 32.0 g H2 reacts with 16.0 g
O2? *
2H2 + O2 + 2H2O
9.00 g
16.0 g
18.0 g
32.0g

Answers

Answer:

18.0 g

Explanation:

M(H2) = 2.0 g/mol

32.0g * 1 mol/2 g= 16 mol H2

M(O2) = 32 g/mol

16.0 g * 1mol/32 g= 0.5 mol O2

                                      2H2 + O2 ---> 2H2O

from reaction              2 mol    1 mol

given                         16 mol     0.5 mol

We see that O2 is a limiting reactant.

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

from reaction                         1 mol            2 mol

given                                      0.5 mol        x mol

x =(0.5*2)/1= 1 mol H2O

M(H2O)= 18 g/mol

18 g/mol* 1 mol = 18 g H2O

How many carbon and hydrogen atoms are there?

Answers

Answer:

13 carbon and 24 hydrogen

Explanation:

There are 24 hydrogen atoms.

There are 13 carbon atoms.

The other person is right

Which answer gives both a positive impact and a negative impact associated with the effects of nitrogen- and phosphorus-enhanced fertilizers?

A- increased algal blooms and damage to drinking water

B- increased plant growth and damage to drinking water

C- increase in denitrifying bacteria and increase in plant growth

D- increase in a limiting resource and increase in denitrifying bacteria

Answers

Answer:

The answer is B

Explanation:

Answer:

Which answer gives both a positive impact and a negative impact associated with the effects of nitrogen- and phosphorus-enhanced fertilizers?

1. increased algal blooms and damage to drinking water

Right Answer 2. increased plant growth and damage to drinking water

3. increase in denitrifying bacteria and increase in plant growth

4. increase in a limiting resource and increase in denitrifying bacteria

Explanation:

Whats the answer to 7/2 × 1/5?​

Answers

The answer to the problem is 7/10

Answer:7/10

Explanation:multiply top and bottom

Analysis: The limiting reactant(s) appeared to be
because

Answers

there is nothing with which it can react

Explanation:

The limiting reactant(s) prevents a reaction from continuing because there is none left.

Why do limiting reactants occur?

Identification of the limiting reactant makes it possible to calculate the theoretical yield of a reaction. The reason there is a limiting reactant is that elements and compounds react according to the mole ratio between them in a balanced chemical equation.

How do you get the limiting reactant?

The reactant that is consumed first and limits the amount of product(s) that can be obtained is the limiting reactant. To identify the limiting reactant, calculate the number of moles of each reactant present and compare this ratio to the mole ratio of the reactants in the balanced chemical equation.

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In the water cycle diagram above, which letter represents
groundwater?
Select One:

Q

S

T

R​

Answers

Answer:t

Explanation:bc

What is an example of a polyatomic ion

Answers

Answer: The hydroxide cation (OH -) and the phosphate cation (PO 4 3-) are both polyatomic ions.

Explanation:

Answer:

OH - and PO 4 3- are both polyatomic ions

what happens when light is not spread out

Answers

Answer:

Spreading out a wave over a larger area just causes the wave strength to weaken, but does not cause gaps to form. Therefore, if you look at photons as waves, spatial gaps never form in light as it travels through free space, no matter how dim it gets.Spreading out a wave over a larger area just causes the wave strength to weaken, but does not cause gaps to form. Therefore, if you look at photons as waves, spatial gaps never form in light as it travels through free space, no matter how dim it gets

Explanation:

What organelle does the process of cellular respiration?

Answers

Answer:

Mitochondria

Explanation:

The mitochondrion is the site of cellular respiration. The first part of cellular respiration (glycolysis) happens in the cytoplasm. The second part of cellular respiration needs oxygen, and it occurs in mitochondria.

Ideal Stoichiometry

Barium oxide has a replacement reaction with lithium. Calculate the mass of Barium oxide needed to react with 34.67 g of lithium.

*equation needed and thorough explanation please*

A- 340.5
B- 383.0
C- 455.0
D- 256.8​

Answers

Answer:

the answer is 383.0

hope it is helpful

Which of these conclusions is correct about P and Q in the diagram?

P represents the land and Q represents the ocean.
P represents the ocean and Q represents the land.
P represents the land and Q represents the atmosphere.
P represents the atmosphere and Q represents the ocean.

Answers

P represents the atmosphere and Q represents the ocean.

Answer:

P represents the atmosphere and Q represents the ocean.

Explanation:

ILL GIVE YOU BRAINLIST * have to get it right * !!! Although individual body systems can perform specific functions, they depend on one another and work together for the good of the entire organism.
Which of the following provides the best evidence that the digestive system and the muscular system work together to carry out their functions?

Answers

I think it might be A muscles help move nutrients through the body to the stomach

How many moles of H2 are needed to produce 18 moles NH3 in the reaction below?
N2 + 3 H2 —> 2 NH3

Answers

Answer:

27 moles of H₂

Explanation:

Equation of reaction:

N₂ + 3H₂ → 2NH₃

From the equation of reaction,

3 moles of H₂ is required to produce 2 moles of NH₃

3 moles H₂ = 2 moles of NH₃

X moles of H₂ = 18 moles of NH₃

X = (3 * 18) / 2

X = 27 moles of H₂

27 moles of H₂ is required to produce 18 moles of NH₃

Which term describes this reaction?

A- addition
B- condensation
C- elimination
D- substitution

Answers

Answer:

C.

Explanation:

This is a reaction of elimination, because the water was removed and because of it double bond is formed.

The Sun is a constant supply of energy to Earth.
A. True
B. False

Answers

True.
The sun gives the earth thermal energy, which warmth the planet and effects the weather and the seasons. Also the sun is the beginning of the food chain, because it allows for plants to grow.
We also get our energy either directly or in directly from the sun, either from our food that we eat, or through things like the burning of fossil fuels, which was once plant-matter millions of years ago.
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