what are the three different type of solution?explain them.​

Answer:

______is used in production of hard disk.

Explanation:

Answer:

air, water, sunlight

Explanation:

A limiting factor may be defined as a environmental condition or a resource that can limit the plant growth as well as distribution or the abundance of an organism or its population within the ecosystem. The ability  of any plant species to grow and spread throughout any geographic area is the direct result of the adaption to its biotic  and abiotic components of that region.

Some of the factor that affect the plant growth are : sunlight, air, proper temperature, moisture, nutrients, wind,etc.

The lack of the any one of the above essential component will determine the health of the  plant.

Answer:

Chemical Change

Explanation:

It became white and became solid which makes it a chemical change.

Answer:

speed= distance/time

= 100/5=20mph

Answer:

44.01 g/mol

There you go, hope it helped!!!!!

Answer: gallium, condenses, gas

Explanation: took assignment on edge

Answer: gallium, condenses, gas

Explanation: took assignment on edge

Answer:

Explanation: errors in judgment of an observer when reading the scale of a measuring device to the smallest division. 2. Environmental. For example, unpredictable fluctuations in line voltage, temperature, or mechanical vibrations of equipment.

Answer:

The number of   milliliters  of  isopropyl alcohol that are  in   a 400 ml bottle  of this solution  is 280 Ml

Explanation:

% V/V =  volume of  solute/ volume  of  solution  x 100

Let the volume  of solute  be =  y  ml

the volume  of  solution =  400 ml

convert 70%  to fraction = 70/100

by  substituting  the value  in the equation

= y  ml/  400 ml =  70/100

by cross  multiplication

100y =400 x70

100y=  28000

y= 280 ml

Answer:

A.. 0.1 gram this means 0.0001kg of the object in SI unit

b. 0.01 meter this means 1 / 10 of 1 meter of the measurement

c. 0.000001 liter this means 1/10000 of the quality of liquid in SI unit

e. 1000 000 grams.this means 1000kg of the object in IS unit

L. 10 meters this means 10 times one meter of the measurement in SI unit

Answer:

Oxygen, Argon, and Carbon.

Explanation:

Just finished the assignment.

Oxygen ,boron and carbon are the non metallic elements. Thus, options B, C, and G are correct.

Non-metallic elements are the elements which easily  form negative ions by accepting or gaining electrons and which do not have complete electronic configuration like rare gas. Non metals have high ionization energies and electronegativity.

They are generally poor conductors of heat and electricity. Solid non metals are generally brittle, with little or no metallic lustre.

Most non metals have the ability to gain electrons easily. Non metals display a wide range of chemical properties and reactivities.

In above except oxygen, boron and carbon all other elements are metallic in character  that possess metallic property. Thus, options B, C, and G are correct.

Learn more about non-metallic elements, here:

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Answer:

The ratio of the particles that make it up is fixed

Explanation:

Answer:

Problem: How does the amount of algae (anabaena) affect or cause the number/rate of catfish death

Hypothesis: IF there is a high amount of algae growth, THEN the rate at which catfishes die increases.

Independent variable: Amount in grams of algae

Dependent variable: Number of catfishes that die.

Explanation:

A scientific experiment starts with an observed problem or a question which can be tested. In this experiment, the rate of death of catfish in an aquaculture due to the high amount of algae (anabaena) growth is observed, hence, it is the problem. It will be asked as a question: HOW DOES THE AMOUNT OF ALGAE IN A TANK CAUSE THE RATE AT WHICH CATFISHES DIE.

Formualting an Hypothesis is the next step of a scientific method. Hypothesis is a testable explantation or suggested solution to the observed problem or asked question. A hypothesis of this experiment can be: IF THERE IS A HIGH AMOUNT OF ALGAE GROWTH, THEN THE RATE AT WHICH CATFISH DIE INCREASES.

Next is to test the hypothesis by conducting an experiment. In an experiment, the independent variable is the variable that the experimenter changes or manipulates in order to bring about a response. In this experiment, the independent variable is the AMOUNT IN GRAMS OF ALGAE ADDED TO EACH AQUARIUM.

On the other hand, the dependent variable is the variable being tested or measured in an experiment. In this experiment, the dependent variable is the NUMBER OF CATFISH THAT DIE.

Answer:

0.3382 kg

Explanation:

From the illustration:

100g of the ore would contain 20.7 g of nickel by mass. In order to obtain 70.0 g of nickel, the amount of the ore needed would be:

          100 x 70.0/20.7 = 338.16 g

According to conversion units:

1 g = 0.001 kg

Hence,

338.16 g = 338.16 x 0.001 = 0.3382 kg

Therefore, 0.3382 kg of the ore would be required in order to obtain 70.0 g of nickel.

Amount of core in Kilogram is 0.338 kg (Approx.)

Percentage in every ore = 20.7%

Amount of nickel = 70 gram

Amount of core in Kilogram

Amount of core in Kilogram = Amount of nickel / Percentage in every ore

Amount of core in Kilogram = 70 / 20.7%

Amount of core in Kilogram = 70 / 0.207

Amount of core in Kilogram = 338.16 gram

Amount of core in Kilogram = 0.338 kg (Approx.)

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Answer: D. Processing

Explanation: 100% on topic test also its in my e notes.

Craik and Lockhart has proposed theory of memory processing. Thus, option D is correct.

Craik and Lockhart proposed the theory for the processing of the level of memory. The memory in humans can be sensory memory, working memory, and long-term memory.

The long term memories have been stored in the deeper cells and the increased or strong stimulation of the processing results in the stronger retention of the memories. Thus, option D is correct.

For more information about the memory processing, refer to the link:

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Answer:

The researcher should measure the difference in the amount of product at the end of the reaction.

Explanation:

Enzymes are defined as the protiens that are responsible for increasing the rate of reaction.

With the increase in temperature, the enzyme activity increases and so the rate of reaction increases. It means at lower temperature the rate of reaction decreases and the amount of product also decreases.

So, to determine the effectiveness of an enzyme at various temperatures, the difference in the amount of the product at the end of reaction should be measured.

Hence, the correct answer is "D".

Answer:

5.77% Error.

Explanation:

Given an experimental value of 275 g , and a theoretical value of 260 g, the percent error can be found using the equation:

[tex]\% \: error \: = \frac{ |theoretical \: value \: - \: experimental \: value | }{theoretical \: value} \times 100[/tex]

% Error = ( | 260 - 275 | / 260 ) × 100 = ( | - 15 | / 260 ) × 100 = ( 15 / 260 ) × 100 = 1500/260 = 300 / 52 = 5.769230769230.. ≈ 5.77%

Answer:3,888,000seconds

Explanation:

60secx60minsx24 hoursx45days=3,888,000

Answer:

A

Explanation:

Because you need to multiply the length value by 1000

Answer:

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

From the question

volume = 2000 mL

density = 1.05 g/mL

The mass of soda is

mass = 2000 × 1.05

We have the final answer as

Hope this helps you

Answer:

The spine is also designed to protect your spinal cord. The spinal cord is a column of nerves that connects your brain with the rest of your body, allowing you to control your movements. Without a spinal cord, you could not move any part of your body, and your organs could not function.

Answer:

Molecules start out unevenly distributed and end up evenly distributed.

Explanation:

Diffusion is the process by which molecules of a substance move from a region of higher concentration to a region of lower concentration until equilibrium is attained.

Molecules start out unevenly distributed and end up evenly distributed in a particular medium. Diffusion occurs due to the particulate nature of matter. When the particles that make up a substance are concentrated at a point, the collide more often with one another causing each molecule to spread out in order to occupy all the available space.

Diffusion occurs in gases, liquids and solids but occurs fastest in gases. Diffusion can be observed for example, in the spread of the smell of a dead rat from one point in a room to every part of the room.

Answer:

B

Explanation:

:D

Answer:

Boiling point of the solution is 100.78°C

Explanation:

This is about colligative properties.

First of all, we need to calculate molality from the freezing point depression.

ΔT = Kf . m . i

As the solute is nonelectrolyte, i = 1

0°C - (-2.79°C) = 1.86 °C/m . m . 1

2.79°C / 1.86 m/°C = 1.5 m

Now, we go to the boiling point elevation

ΔT = Kb . m . i

Final T° - 100°C  =  0.52 °C/m . 1.5m . 1

Final T° =  0.52 °C/m . 1.5m . 1  + 100°C → 100.78°C

Answer: is factor that change in a controlled experiment

Explanation:

Answer:

56.69905

Explanation:

The conversion factor from pounds to kilograms is 0.45359237, which means that 1 pound is equal to 0.45359237 kilograms.

Answer:

D or the 4th one

Explanation:

mass is literally the measure of matter in an object which is essentially the weight or how much stuff there is.

Answer:

C:)

Explanation:

Answer:

The Flow of science keeps going because not everything is fully discovered yet. New things are discovered everyday and are also made better as well.

Explanation:

Answer:.1 kJ = 1000 J  and 1J=0.24cal

----->78.9kJ=1000x78.9x0.24=18936cal

Explanation:

This is the unit regulated by the scientific community and they follow the formula that they prove