A mixture of large, dispersed particles.

Answers

Answer 1

Answer:

Colloids are mixtures in which one or more substances are dispersed as relatively large solid particles or liquid droplets throughout a solid, liquid, or gaseous medium.

Answer 2

Answer:

Colloids are mixtures in which one or more substances are dispersed as relatively large solid particles or liquid droplets throughout a solid, liquid, or gaseous medium.

Explanation:

I got the answer first


Related Questions

2C_H. + 702 — 400, + 6H2O
How many moles of oxygen (O2) are required to produce
45.8 g of water (H20)?

Answers

Balanced Eqn

2

C

2

H

6

+

7

O

2

=

4

C

O

2

+

6

H

2

O

By the Balanced eqn

60g ethane requires 7x32= 224g oxygen

here ethane is in excess.oxygen will be fully consumed

hence

300g oxygen will consume  

60

300

224

=

80.36

g

ethane

leaving (270-80.36)= 189.64 g ethane.

By the Balanced eqn

60g ethane produces 4x44 g CO2

hence amount of CO2 produced =

4

44

80.36

60

=

235.72

g

and its no. of moles will be  

235.72

44

=5.36 where 44 is the molar mass of Carbon dioxide

hope this helps

list 5 things which we can make using each of the following materials​

Answers

Answer:

Glass

1.microscopes

2.mirrors

3.glass shelves

4.wrist watch glass

5.magnifying glass

Metal

1.keys

2.automobile body parts

3.coins

4.window frames

5.screws and nails

Plastic

1.bottles

2.boxes

3.balls

4.carry bags

5.buckets and mugs

Wood

1.chairs

2.tables

3.shoe stand

4.dressing table

5.shelves

What must be happening to the forces of attraction between particles when a change of state occurs?

Answers

Answer:

The particles need energy to overcome the attractions between them. As the liquid gets warmer more particles have sufficient energy to escape from the liquid. Eventually even particles in the middle of the liquid form bubbles of gas in the liquid.

HELPP!!
in reaction 3Fe+2O2=Fe3O4 if I add 20g of Fe to my solution how many moles of Fe3O4 will produce???

Answers

Answer:

0.119 moles

Explanation:

molar mass of Fe = 55.845g

to find moles = mass/ molar mass

so moles of Fe = 20/55.845

= 0.358 moles

for the equation you are given

for every three Fe, it produces 1 Fe3O4 , meaning the ratio is 3:1

if you have 0.358 moles of Fe, that means the number of moles of Fe3O4  will equal to one third of that,

thus

moles of Fe3O4 = 1/3 x 0.358 = 0.119

Silver is a metal; it reacts with oxygen which is a non-metal to form Silver Oxide. The bond between Silver and Oxygen is called



(Related to Science)

Answers

It is called an ionic bond

Can someone pls help me with this its due in 20 minutes.

Answers

Answer:

15. The velocity of a sound wave is affected by two properties of matter: the elastic properties and density.

16. The greater the density of a medium, the slower the speed of sound. This observation is analogous to the fact that the frequency of a simple harmonic motion is inversely proportional to m, the mass of the oscillating object.

17. Temp °C 0 m/s2 m/s

50 360.51 361.62

18. Molecules at higher temperatures have more energy, thus they can vibrate faster. Since the molecules vibrate faster, sound waves can travel more quickly. The speed of sound in room temperature air is 346 meters per second. ... The speed of sound is also affected by other factors such as humidity and air pressure.

what kind of chemical reaction is this?

Answers

Answer:

Ethane Combustion Reaction or just  Combustion Reaction

Explanation:

(Help would be greatly appreciated) What is the molarity of a solution which contains 22.41 grams of NaCl in 50.0 mL of solution?
1. 0.488M
2. 7.67mol
3. 7.67M
4. 0.000767M

Answers

Answer:

7.67

Explanation:

According to molar concentration, the molarity of solution which contains 22.41 grams of NaCl in 50.0 ml of solution is 7.67 M.

What is molar concentration?

Molar concentration is defined as a measure by which concentration of chemical substances present in a solution are determined. It is defined in particular reference to solute concentration in a solution . Most commonly used unit for molar concentration is moles/liter.

The molar concentration depends on change in volume of the solution which is mainly due to thermal expansion. Molar concentration is calculated by the formula, molar concentration=mass/ molar mass ×1/volume of solution in liters.

In terms of moles, it's formula is given as molar concentration= number of moles /volume of solution in liters.Substitution of values in the given formula gives, molarity= 22.41/58.44×1/0.05=7.67 M.

Thus, the  molarity of solution which contains 22.41 grams of NaCl in 50.0 ml of solution is 7.67 M.

Learn more about molar concentration,here:

https://brainly.com/question/21841645

#SPJ2

how much energy is used to raise the temperature of 3kg of aluminium from 18°C to 23°C? Use the table below and this equation: Q=mc T

A. 13,455 J

B. 2691 J

C. 13.455

D. 4.485 J​

Answers

C 13.455 if it’s wrong my fault

How much energy is required to raise the temperature of 3 kg of aluminum from 18°C to 23°C? Use the table below and this equation: Q=mcΔT

Anyone help please more & you get extra points

Answers

Answer:

qns-4

1-multicellular organism

2-unicellular organism

3-unicellular organism

4-multicellular organism

5-unicellular organism

6-multicellular organism

7-unicellular organism

How do waves form?

Lesson 2.13

Question 4 options:

Ocean waves don't form


Ocean waves form as wind is absent.


Ocean waves form as wind moves across the surface, transferring its energy to the water.


Ocean waves form as salinity increases.

Answers

Answer:

It's the 4th one. waves are created by the wind

Answer:

C. Ocean waves form as wind moves across the surface, transferring its energy to the water.

Explanation:

hope this helps! c:

What is a free body diagram? what is it used for?

Answers

Answer:

A free body diagram is used to calculate static and dynamic forces acting on an object. In other words, a free body diagram is the starting point to develop a mathematical model to find and calculate various forces acting on a body.

Explanation:

MORE THEN ONE ANSWER Factors affecting energy transfer

Lesson 2.14-2.15

Question 9 options:

Wind moving over a relatively flat water surface has less area to come in contact with the water, and this reduces energy transfer.


Larger waves have extra spaces and areas to trap air, increasing the transfer of the wind's energy to the water.


Wind moving over a relatively flat water surface has GREATER area to come in contact with the water, and this INCREASES energy transfer.


SMALLER waves have extra spaces and areas to trap air, increasing the transfer of the wind's energy to the water.

Answers

Answer:

1.) Wind moving over a relatively flat water surface has less area to come in contact with the water, and this reduces energy transfer.

2.) Larger waves have extra spaces and areas to trap air, increasing the transfer of the wind's energy to the water.

Explanation:

I got it right on the test.

Wind moving over a relatively flat water surface has less area to come in contact with the water, and this reduces energy transfer and Larger waves have extra spaces and areas to trap air, increasing the transfer of the wind's energy to the water.

What is energy transfer?

When energy of any body travels from the one body to the another body, then transfer of energy takes place.

In the oceans, winds transfer their energy to the ocean or to the sea by the interaction with the surface water. When on the surface of ocean or sea up and down movement of water occurs then the interaction of that water with wind takes place and transfer of energy from wind to sea happen. More roughness or more height of the water on the surface of sea observed ten more transfer of energy from wind to sea occur.

Hence, option (1) & (2) is correct i.e. wind moving over a relatively flat water surface reduces energy transfer and Larger waves increasing the transfer of the wind's energy to the water.

To know more about energy transfer, visit the below link:

https://brainly.com/question/2667612

What results when equal but opposite charges are present in two regions of a polar molecule? A. dipole B. ionic bond C. Electron sea D. crystal lattice

Answers

Answer: A. dipole

Explanation:

Dipole can be defined as the separation of the equal and opposite charges present in the molecule via ionic bonding. The water molecule comprising of two molecules of hydrogen being positively charged and one molecule of oxygen being negatively charged are connected via ionic bonding thus water molecule is an example of dipole molecule. There is unequal distribution of the electrical density throughout the molecule.

The polar molecule results in a dipole when equal but opposite charges are present in two regions.

Dipole:  

Dipole arises when a molecule have opposite and equal charge in the ends.

For example - water molecule

In water molecule Oxygen is negatively charged and hydrogen have low electronegativity, this difference in electronegativities arise dipole in molecule.

Therefore, the polar molecule results in a dipole when equal but opposite charges are present in two regions.

To know more about Dipole,

https://brainly.com/question/18382778

How can i solve this formula

Answers

Answer:

K2 Cr2 O7 is the empirical formula

Explanation:

Assume we have 100 g of the compound, because it makes the number of grams equal to the percentage.

Then convert grams of each element into moles

Then divide the moles of each element by the smallest number of moles attained to get the whole number mole ratios of the empirical formula

However, if you don't get whole numbers when you divide by the smallest number of moles, then multiply all moles by one common factor that  makes them all whole numbers.

Find Jay's instantaneous speed at 35 minutes.

Find jays instantaneous speed at 35 minutes.

Answers

What do u mean by the question?

Which of the following best explains how minerals get into streams?

A. Rainwater that is high in minerals from the atmosphere falls into the stream.
B. The stream absorbs minerals from the plants growing in and around its banks.
C. Rainwater dissolves minerals out of the rocks and soil along the stream during runoff.
D. When water evaporates from the ocean, it takes minerals with it and redeposits them as rainwater into the stream.
please help me

Answers

Answer:

C:Rainwater dissolves minerals out of the rocks and soil along the stream during runoff

the answer is C have a great rest of your day

What is the main function of the cell membrane in an animal cell?

Answers

Answer:

A cell's plasma membrane, also known as the cell membrane, provides protection. It also maintains a constant atmosphere within the cell, and the membrane serves a variety of purposes. The first is to transport nutrients into the cell, and the second is to transport toxic compounds out

Explanation:

the control what comes in and out of the cell

A trait that is helpful to a species will become more common in that
species over time. This is called what.

A. genetic variation
B. transition
C. overproduction
D. selection

Answers

B is the right answer

If 3.22 g of precipitate are recovered from the reaction of limewater (Ca(OH),) with carbon dioxide to produce
water and calcium carbonate, what is the percent yield if 20.0 g of carbon dioxide was mixed with the
limewater?
the correct answer is 7.1% but i don't understand what they did

Answers

Answer:

Percent yield = 7.1%

Explanation:

The general reaction of the problem is:

Ca(OH)₂ + CO₂ → H₂O + CaCO₃

To solve this question we need to find theoretical yield using the amount of carbon dioxide added because:

Percent yield = Actual yield (3.22g) / Theoretical yield * 100

Theoretical yield is the maximum amount of product that could be obtained. To find it we need to convert the mass of CO₂ to moles. The moles of CO₂ = Moles of CaCO₃:

Moles CO₂ -Molar mass: 44.01g/mol):

20.0g * (1mol / 44.01g) = 0.454 moles CO₂ = Moles of CaCO₃ produced

Mass CaCO₃ = Theoretical yield -Molar mass: 100.09g/mol-:

0.454 moles * (100.09g / mol) = 45.5g of CaCO₃ = Theoretical yield.

Replacing:

Percent yield = 3.22g / 45.5g * 100

Percent yield = 7.1%

Eyes, nose, mouth would each be an example of a(n)
a. organ system
b. Cell
c. tissue
d. organ

Answers

Answer:

I think it is Organ

Explanation:

Hi! I need some help with this pleaseeee!!

When two objects of different temperatures are placed in contact with one another, eventually: (choose one option from below)

a) both their average kinetic energy and temperature will be the same

b) their average kinetic energy will be the same

c) neither their average kinetic energy and temperature will be the same

d) their temperature will be the same

Answers

a) eventually they will be in thermal equilibrium

Can you help me pretty please !!!

Answers

The answer is A it depends on the distance

what is a salient factor?

Answers

Answer:

technology is a silent factor

Explanation:

learned about it in computer class.

Oxidation numbers of oxygen in H2PO4 and H2O2 is_____ respectively

Answers

Answer:

-2 , -1

Explanation:

H2PO4=-1

+1 × 2 + +5 + 4 ×O=-1

7+ 4O =-1

4O= -8

O = -2

H2O2=0

+1 × 2 +2 x O =0

2 + 2O=0

O= -1

(As the oxidation number of Hydrogen is +1 , and we have 2 hydrogen atoms so we multiply by 2 , while the oxidation number of P is +5 in this equation, also the compound as a whole equals -1 , then we do the steps as followed)

(while the other compound as a whole equals zero , and doing steps as followed)

*if anything is unclear send me a message*

classify matter as elements mixtures and compounds

Answers

Answer:

An element contains just one type of atom. A compound contains two or more different atoms joined together. A mixture contains two or more different substances that are only physically joined together, not chemically. A mixture can contain both elements and compounds.

Seawater is a good source of magnesium. Magnesium is dissolved in the seawater as Mg²⁺. SUGGEST a substance that could be used to precipitate magnesium out of the water. Write a BALANCED CHEMICAL EQUATION and IDENTIFY THE REACTION TYPE to support your thinking

Answers

Answer:

SO₄⁻² (aq)  +  Mg²⁺ (aq)  ⇄  MgSO₄ (s) ↓

Precipitation reaction

Explanation:

Mg²⁻ is one of the metals at group 2 in the Perodic Table. This group is called, the alkaline earth metals.

To make precipitate the Mg²⁺ we can use a salt of sulfate, either flouride or phosphate. Those are three salts that can precipitate this metal.

We use sodium as cathion so, first of all we dissociate them:

Na₂SO₄ (aq) →  2Na⁺  (aq)  +  SO₄⁻² (aq)

NaF (aq) →  Na⁺ (aq) +  F⁻ (aq)

Na₃PO₄ (aq) →  3Na⁺ (aq)  +  PO₄⁻³ (aq)

In all cases, the reaction is of the precipitation type and is conditioned by the Kps, the solubility product constant. Let's bond the anions with Mg²⁺.

SO₄⁻² (aq)  +  Mg²⁺ (aq)  ⇄  MgSO₄ (s) ↓    Kps

2F⁻ (aq)  +  Mg²⁺ (aq)  ⇄   MgF₂ (s) ↓      Kps

2PO₄⁻³ (aq)  +  3Mg²⁺ (aq)  ⇄  Mg₃PO₄ (s) ↓   Kps  

what is a food chain OR web, and what is it useful for?

Answers

Answer:

-

-

Food webs can be used to study bottom-up or top-down control of community structure.

Explanation:

Food chains are important because they show the intricate relationships in ecosystems. They can reveal how each organism depends on someone else for survival. Food chains also display what happens when a problem occurs and a producer or consumer is lost.

-

-

-

-

What is the definition for floating

Answers

Answer:

"1. buoyant or suspended in water or air.

2.not settled in a definite place; fluctuating or variable."

Explanation:

Hope this helps! :)

Find the volume of 2.40 moles of gas whose temperature is 50.0°C and whose pressure is 2.00 atm.

Answers

PV=nRT
n=2.4 moles
T=273.15+50=323.15K
P=2*101325=202650 Pa
R=8.31


Solve for V:
V=nRT/P=2.4*8.31*323.15/202650=.032m^3
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What is one reason Florida set up the state university system?A. to replace private collegesB. to employ workersC. to benefit Florida's citizens and economyD. to benefit surrounding states Andrew and Sebastian are training for a weightlifting competition. In order to prepare, each of them has created their own personal training plan as follows: Andrew will start off by lifting 50 pounds and will increase the weight he lifts by 10% each week. Sebastian will start off by lifting 40 pounds and will increase the weight he lifts by 10 pounds each week.Which of the following statements are true?OOOOOAndrew and Sebastian both increase the weight they lift each week by the same amountAndrew's training plan can be modeled by a linear function, and Sebastian's training plan can be modeled by an exponential function.Andrew's training plan can be modeled by an exponential function, and Sebastian's training plan can be modeled by a linear function.Andrew increases the weight he lifts each week by equal factors, and Sebastian increases the weight he lifts each week by equal differencesAndrew increases the weight he lifts each week by equal differences, and Sebastian increases the weight he lifts each week by equal factors A recipe for 12 scones requires 2 teaspoons of baking powder and 240 g of flour. If a larger number of scones are made, using 540 g of flour, how much baking powder is needed? 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It is balanced because the number of reactants (number of atoms) is equal to the number of products (number of atoms).Read the information about an experiment.Jadon plans on carrying out an experiment involving the burning of steel wool to illustrate the conservation of mass. Steel wool is made of iron. When it is burned it combines with oxygen to form iron(III) oxide.Which step in his experiment is the most important if he wants his experiment to correctly demonstrate the conservation of mass? A. The steel wool should be burned inside of a sealed jar or other closed system. B. The steel wool should be burned over a long period of time (at least two hours). C. The steel wool should be burned in a room that is at room temperature (2025C). D. The steel wool should be burned in its entirety sExpected Outcomes Metals in Hydrochloric AcidMetal ObservationsCopper No reaction even when gently heatedIron Little initial reaction.More vigorous reaction when heated.Positive test for hydrogen gas.Solution turned from colorless to yellow.Magnesium Vigorous initial reaction; rapid evolution of gas.Positive test for hydrogen gas.All of the magnesium seemed to disappear.Solution remained colorless.Zinc Initial reaction produced rapid evolution of gas; less vigorous than magnesium.All of the zinc seemed to disappear.Solution remained colorless.Students in Ms. Brown's Science Lab demonstrated several chemical reactions, by placing the each above chemicals in HCl (hydrochloric acid). Unfortunately, the data did not appear to support the Law of Conservation of Matter in any of the experiments. The recorded Mass of the Reactants did not match the Mass of the Products. 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A. genetic variationB. transitionC. overproductionD. selection Create your own disc jockey rhyme create a rhyme at least ten lines long HELP Ill CASH APP AND MARK BRAIN LIST how would you say that it is the following time in spanish? 12:45 find the measure of all of the angles on the diagram