What is a criterion for all products made using the process of technological design? The product must be cheaper than similar products.

The product must be available to any user who wants it.

The product must solve the problem for which it was designed.

The product must be capable of solving a variety of problems.

Answers

Answer 1

Answer:

C. The product must solve the problem for which it was designed.

Explanation:

Technological design is the study, development and application of technological process with the intent of designing a product to solve required problem.The process could be based on the use of a computer.

Generally, technological process and development always tend to design a problem solver product. Through this process, more new technologies are produced.

Therefore in technological process, the product must solve the problem for which it was designed.

Answer 2

Answer:

C) The product must solve the problem for which it was designed.


Related Questions

If the temperature outside is 297 what is this temperature in degrees celsius

Answers

Answer:

147.222 degrees C

Explanation:

assuming its  297 F it should be correct

The temperature outside is 297°F then this temperature in celsius is equal to 147.22 °C.

How to convert from Fahrenheit to celsius?

Temperature can be described as a physical quantity that expresses quantitatively the perceptions of hotness or coldness. The most general scales are the Celsius scale with (°C), the Fahrenheit scale (°F), and the Kelvin scale (K), the latter being used predominantly for scientific purposes.

Fahrenheit to Celsius formula can be used to change the temperature from the scale Fahrenheit to degrees Celsius.

The formula that can be used to convert Fahrenheit to Celsius is given below:

[tex]\dusplaystyle ^oC = (^oF - 32) \times \frac{5}{9}[/tex]

Here, F represents the temperature in Fahrenheit, and C represents the temperature in Celsius.

Given the temperature in Fahrenheit = 297 °F

[tex]\dusplaystyle T( ^oC) = (297 - 32) \times \frac{5}{9}[/tex]

T = 147.22 °C

Therefore, the given temperature in celsius is equal to 147.22 °C.

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Which of the following statements is true?

A. Every organism is made of different elements.

B. All living things are made of the same elements.

C. Every species is made of different elements.

D. All matter is made of the same 10 elements.

Answers

Answer:

Every species is made of different elements.

Explanation:

Living organisms are classified by their species. Species refer to a group of closely related individual organisms which are callable of interbreeding with each other and exchanging genetic material.

Member of a species have similar genetic make up and often look alike, it is the lowest taxonomic rank of closely related organisms.

Members of of different species are often composed of different elements. Since individual organisms are members of a given species, we can say that every species of organisms are made up of different elements.


Calculate the percent ionic, the percent covalent, and the bond length (in picometers) of a chemical bond between phosphorus and selenium.

Phosphorus—atomic radius: 109 pm; covalent radius: 106 pm; ionic radius: 212 pm.
Selenium—atomic radius: 122 pm; covalent radius: 116 pm; ionic radius: 198 pm.

98 percent ionic, 2 percent covalent, 410 pm
4 percent ionic, 96 percent covalent, 222 pm
2 percent ionic, 98 percent covalent, 222 pm
96 percent ionic, 4 percent covalent, 410 pm

Answers

Answer:

The correct option is;

4 percent ionic, 96 percent covalent, 222 pm

Explanation:

The parameters given are;

Phosphorus:

Atomic radius = 109 pm

Covalent radius = 106 pm

Ionic radius = 212 pm

Electronegativity of phosphorus = 2.19  

Selenium:

Atomic radius = 122 pm

Covalent radius = 116 pm

Ionic radius = 198 pm

Electronegativity of selenium= 2.55  

The percentage ionic character of the chemical bond between phosphorus and selenium is given by the relation;

Using Pauling's alternative electronegativity difference method, we have;

[tex]\% \, Ionic \ Character = \left [18\times (\bigtriangleup E.N.)^{1.4} \right ] \%[/tex]

Where:

Δ E.N. = Change in electronegativity = 2.55 - 2.19 = 0.36

Therefore;

[tex]\% \, Ionic \ Character = \left [18\times (0.36)^{1.4} \right ] \% = 4.3 \%[/tex]

Hence the percentage ionic character = 4.3% ≈ 4%

the percentage covalent character = (100 - 4.3)% = 95.7% ≈ 96%

The bond length for the covalent bond is found adding the covalent radii of both atoms as follows;

The bond length for the covalent bond = 106 pm + 116 pm = 222 pm.

The correct option is therefore, 4 percent ionic, 96 percent covalent, 222 pm.

Inorganic compounds which are found in the earth are called: minerals vitamins synthetics cement

Answers

Answer:

Minerals

Explanation:

I looked it up on google. Thanks.

explain why we must balance all chemical equations

Answers

Answer:

The chemical equation needs to be balanced so that it follows the law of conservation of mass.

Explanation:

Explanation:

the chemical equation needs to be balance so that it follows the law of conservation of mass. a balance chemical equation occurs when the number of the different atoms of elements to the reactants side is equal to that of the product side. balancing chemical equation is a process of trial and error .

Which one is NOT an acid?
A. H2S04 B. H2NO3 C. HCI D. NaOH

Answers

I think it’s A but if wrong I’m sorry

Formamide decomposes at high temperature. If 0.186 mol of formamide (HCONH2) dissociates in a 2.16 L flask at 400 K, what are the concentrations of all species present at equilibrium at 400 K? (hint: calculate concentrations first) (b) What is the total pressure in the container at equilibrium?

Answers

Answer:

a) [COHNH₂] = 0.001 mol/L, [NH₃] = [CO] = 0.085 mol/L

b) 5.59 atm

Explanation:

a) The decomposition reaction of formamide is the following:

COHNH₂(d)  ⇆  NH₃(g) + CO(g)    

The equilibrium constant of the reaction above is:

[tex]K_{c} = \frac{[NH_{3}][CO]}{[COHNH_{2}]} = 4.84 (400 K)[/tex]

The initial concentration of formamide is:

[tex] C_{COHNH_{2}} = \frac{\eta}{V} = \frac{0.186 moles}{2.16 L} = 0.086 mol/L [/tex]

Where: η is the number of moles and V is the volume

Now, in the equilibrium the concentration of all species is:

COHNH₂(d)  ⇆  NH₃(g) + CO(g)  

0.086 - x              x             x

[tex] K_{c} = \frac{[NH_{3}][CO]}{[COHNH_{2}]} = \frac{x*x}{0.086 - x} [/tex]  

[tex] 4.84*(0.086 - x) -x^{2} = 0 [/tex]

By solving the above equation for x we have:

x = 0.085 mol/L = [NH₃] = [CO]

[COHNH₂] = 0.086 - 0.085 = 0.001 mol/L

Therefore, the concentrations of all species present at equilibrium at 400 K is [NH₃] = [CO] = 0.085 mol/L and [COHNH₂] = 0.001 mol/L.

b) To find the total pressure in the container we need to find first the constant Kp as follows:

[tex] K_{p} = K_{c}*RT^{\Delta n} [/tex]

Where R is the gas constant = 0.082 Latm/(Kmol), T is the temperature = 400 K and Δn = 1

[tex] K_{p} = K_{c}*RT^{\Delta n} = 4.84*(0.082*400)^{1} = 158.8 [/tex]

Now, the total pressure is:

[tex] p_{T} = p_{COHNH_{2}} + p_{NH_{3}} + p_{CO} [/tex]

The pressure of COHNH₂ can be found using Ideal Gas Law:

[tex] P = \frac{nRT}{V} = \frac{0.186 moles*0.082 L*atm/(K*mol)*400 K}{2.16 L} = 2.82 atm [/tex]

Using the equilibrium constant we can find the pressure of NH₃ and CO:

COHNH₂(d)  ⇆  NH₃(g) + CO(g)  

2.82 - x              x             x

[tex] K_{p} = \frac{P_{NH_{3}}*P_{CO}}{P_{COHNH_{2}}} [/tex]

[tex] 158.8*(2.82 - x) - x^{2} = 0 [/tex]

By solving the above equation for x we have:

[tex] x = P_{NH_{3}} = P_{CO} = 2.77 atm [/tex]

[tex] P_{COHNH_{2}} = 2.82 - 2.77 = 0.05 atm [/tex]

Thus, the total pressure is:

[tex] p_{T} = p_{COHNH_{2}} + p_{NH_{3}} + p_{CO} = (0.05 + 2.77 + 2.77) atm = 5.59 atm [/tex]

Hence, the total pressure in the container at equilibrium is 5.59 atm.

I hope it helps you!

The nickname __________ was given to people from southern states that supported reconstruction laws that helped African Americans.

A. "copperhead"

B. "scalawag"

C. "carpetbagger"

D. "Radical Republican"

Answers

The answer is “scalawag”

Match each element to the correct description of its usual behavior in a chemical reaction.Silicon (Si)Argon (Ar)Sodium (Na)Will lose electrons

Answers

Answer:

Sodium (Na) — Will lose electrons

Silicon (Si) — Will lose electrons

Argon (Ar) — No reaction

Hope this helps.

What is a solvent?
A.always water
B.the liquid in the solution
C.the substance in which the solute dissolves

Answers

Answer:

C. the substance in which the solute dissolves

Explanation:

There are two terms in this... the solute and the solvent. The way I learned how to remember this is with a little pirate analogy: The loot (stolen treasure) always goes in the vent. So, the soLUTE goes in the solVENT.

What is the molarity of a solution that contains 6 moles of NaCl in 3 L of solution?

a
2.0 M

b
0.5 M

c
0.25 M

d
18.0 M


Answers

Answer:

a

2.0 M

Explanation:

divide 6by 3

formula :  molarity=moles divided by volume of solutions

65g of nitric acid are produced in a reaction. 2.5g of platinum are added to the reaction vessel at the start of the reaction to act as a catalyst. How much platinum will there be left in the vessel at the end of the reaction?

Answers

Answer:

2.5 g of platinum

Explanation:

Recall that a catalyst is a specie added to a reaction system to increase the rate of reaction. A catalyst does not participate in the chemical reaction hence it remains unchanged at the end of the chemical reaction. A catalyst merely provides an alternative reaction pathway by lowering the activation energy of the reaction system. Hence a catalysed reaction usually proceeds faster with less energy requirement than the uncatalysed reaction.

Since the catalyst does not participate in the reactions and remains unchanged at the end of the reaction, the mass of platinum will remain the same (2.5g). The mass can only change if a specie participates in the chemical reaction. Hence the answer.

2.5 g of platinum will there be left in the vessel at the end of the reaction

The following information should be considered:

Since the catalyst does not participate in the reactions and remains the same at the end of the reaction, the mass of platinum will remain the same (2.5g). The mass can only change in the case when a specie participates in the chemical reaction.

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There are ___________ forces of attraction between particles in the gas state. Use the following word bank to help you.

Answers

Answer:

Different

Explanation:

Different hope this helps

Seleccione una actividad humana y el impacto generado debe realizar un resumen sobre la actividad seleccionada y dos medidas de prevención para evitar la alteración de los ciclos.

Answers

Answer:

Industrial activity increases the emission of greenhouse gases in the atmosphere, especially carbon dioxide (CO2), and it negatively affects climate by increasing global warming.

Two actions to face the global warming:

1- To substitute the use of fossil fuels by alternative clean energy sources such as, for example, hydroelectric, geothermal, solar and wind energy resources.  

2- The government's policies decided to develop electric cars and to stimulate healthy habits such as walking instead of the use of conventional fossil-fueled transport modes.

How many moles of sodium hydroxide would react with 1 Mole of sulphuric acid?

Answers

Answer:

Two moles.

Explanation:

Sulphuric (sulfuric) acid [tex]\rm H_2SO_4[/tex] is a diprotic acid. When one mole of [tex]\rm H_2SO_4[/tex] molecules dissolve in water, two moles of [tex]\rm H^{+}[/tex] ions would be produced.

[tex]\rm H_2SO_4 \to 2\, H^{+} + {SO_4}^{2-}[/tex].

On the other hand, sodium hydroxide [tex]\rm NaOH[/tex] is a monoprotic base. When one mole of [tex]\rm NaOH[/tex] formula units dissolve in water, only one mole of hydroxide ions [tex]\rm OH^{-}[/tex] would be produced.

[tex]\rm NaOH \to Na^{+} + OH^{-}[/tex].

Note that [tex]\rm H^{+}[/tex] and [tex]\rm OH^{-}[/tex] react at a one-to-one ratio:

[tex]\rm H^{+} + OH^{-} \to H_2O[/tex].

As a result, it would take [tex]2\; \rm mol[/tex] of [tex]\rm OH^{-}[/tex] to react with the [tex]\rm 2\; mol[/tex] of [tex]\rm H^{+}[/tex] that was released when [tex]1\; \rm mol[/tex] of [tex]\rm H_2SO_4[/tex] is dissolved in water. Since one mole of [tex]\rm NaOH[/tex] formula units could produce only one mole of [tex]\rm OH^{-}[/tex], it would take [tex]\rm 2\; mol[/tex] of [tex]\rm NaOH[/tex] formula units to produce that [tex]2\; \rm mol[/tex] of [tex]\rm OH^{-}[/tex] for reacting with [tex]1\; \rm mol[/tex] of [tex]\rm H_2SO_4[/tex].

Hexane is a chain organic compound that has the formula C6H14. What type of organic compound is hexane? Alcohol Amine Ether Hydrocarbon

Answers

Answer:  [tex]C_6H_{14}[/tex] is a hydrocarbon.

Explanation:

Alcohols are the compounds which contain -OH as the functional group. Example: [tex]CH_3OH[/tex]

Amine are the compounds which contain [tex]-NH_2[/tex] as the functional group. Example: [tex]CH_3NH_2[/tex]

Ether are the compounds which contain [tex]ROR[/tex] as the functional group. Example: [tex]CH_3OCH_3[/tex]

Hydrocarbons are defined as the compounds in which bonds are present between carbon and carbon atoms. Hydrocarbons with single bond between carbon and carbon atoms are called as alkanes.The general formula for alkanes is [tex]C_nH_{2n+2}[/tex] Example: [tex]C_6H_{14}[/tex] which is named as hexane.

Answer:

D) Hydrocarbon

Explanation:

Completed the test and got it right

A.
B.
C.
D.

what’s the correct answer?

Answers

Answer:

C Gamma Rays

Explanation:

Radio waves, on the other hand, have the lowest energies, longest wavelengths, and lowest frequencies of any type of EM radiation. In order from highest to lowest energy, the sections of the EM spectrum are named: *gamma rays* ,X-rays, ultraviolet radiation, visible light, infrared radiation, and radio waves.

What systems need to be in place to ensure fairness in healthcare?

Answers

Answer:

The Healthcare system should be a welcome place to the different tiers of people in the society. There should be zero form of discriminations and everyone should be should be treated in the same way. Defaulters should be frowned at and adequate punishments should be meted out. There should be strict accountability of the funds made available to the healthcare centers to prevent diversion and any corrupt practices. These systems need to be in place to ensure fairness in healthcare.

Why would we want to correct for water vapor?

Answers

Answer:

The vapor pressure due to water in a sample can be corrected for in order to get the true value for the pressure of the gas.

Explanation:

Kinetic energy definition

Answers

Answer:

kinetic energy. (General Physics) the energy of motion of a body, equal to the work it would do if it were brought to rest. The translational kinetic energy depends on motion through space, and for a rigid body of constant mass is equal to the product of half the mass times the square of the speed.

Answer:it is the simplest one

the energy possessed by a body due to its motion is called kinetic energy

K.E.=[tex]\frac{1}{2}[/tex]mv²

Which group is in the leftmost column on the periodic table?

Answers

Answer: alkali metals

alkali metals

a.pex

yes

How can you contribute at your own level to save the environment? Plz say the anwer

Answers

Answer:

Some things you could do are recycle more, contribute to organizations that support saving the environment, finding alternate transportation methods such as riding a bike or walking, and finally, you could volunteer.

Which of the following is not sublimable? * 1 point Dry ice Calcium chloride Ammonium chloride

fasttttt

Answers

Answer:

Calcium chloride

Explanation:

Sublimation is the process whereby a solid substance is converted to gas when heat is applied or when exposed to an environment with a higher temperature.

Solid normally gets converted to the liquid phase before reaching the gaseous phase but these substances gets converted from solid straight to gas

Solid—> Gas

Dry ice( solid CO2) and Ammonium chloride undergo sublimation while Calcium chloride doesn't.

1.)A strong acid solution requires 3.2 grams of sulfuric acid (H2SO4). How many molecules of sulfuric acid are in the solution?

2.) While measuring out the sulfuric acid you accidentally spilled some of it! Before trying to clean it up you put some baking soda (NaHCO3) on to it neutralize it. If you scatter 7.8 g of baking soda on the acid how many moles of baking soda have you used?

Answers

Answer: 1. There are [tex]0.20\times 10^{23}[/tex] molecules of sulfuric acid  in the solution.

2.  0.093 moles of baking soda have been used.

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number [tex]6.023\times 10^{23}[/tex] of particles.

To calculate the moles, we use the equation:

1. [tex]\text{Number of moles of sulpfuric acid}=\frac{\text{Given mass}}{\text {Molar mass}}=\frac{3.2g}{98g/mol}=0.033moles[/tex]

1 mole of [tex]H_2SO_4[/tex] contains = [tex]6.023\times 10^{23}[/tex] molecules of sulfuric acid

Thus mole of [tex]H_2SO_4[/tex] contains = [tex]\frac{6.023\times 10^{23}}{1}\times 0.033=0.20\times 10^{23}[/tex] molecules of sulfuric acid

There are [tex]0.20\times 10^{23}[/tex] molecules of sulfuric acid  in the solution.

2.  [tex]\text{Number of moles of baking soda}=\frac{\text{Given mass}}{\text {Molar mass}}=\frac{7.8g}{84g/mol}=0.093moles[/tex]

0.093 moles of baking soda have been used.

Which statement best compares the energy involved in melting with the energy involved in boiling for a given liquid?

Answers

Answer: Energy is removed from the particles in each change, but more energy is removed in melting than in boiling because the attractions are weaker. Energy is removed from the particles in each change, but more energy is removed in boiling than in melting because the attractions are weaker. Energy is added to the particles in each change, but boiling requires more energy than melting because the attractions must be completely overcome. Energy is added to the particles in each change, but melting requires more energy than boiling because the attractions must be completely overcome.  

__C7H16+ ___O2=
CO2 + H20 how to balance this equation

Answers

Answer:

C7H16 + 11O2 = 7CO2 + 8H2O

Explanation:

Start by balancing the C and H in C7H16 by adding the coefficient of 7 for CO2 because there are 7 C's in C7H16. Similarly, since there are 16 H's in C7H16, balance it by adding the coefficient of 8 to the H2O, which will result in 16 H's.

Finally, add up the O's on the right side and balance it by adding the appropriate coefficient on the O2. On the right, there are 22 O's, so balance the equation by adding the coefficient of 11 on the left for the O2.

We know from the relative amounts of 16O and 18O that global temperatures and global climate have changed over time. Why is it important for scientists to be able to explain how they know that climate has changed over time and that they are able to repeat experiments that support this information?

Answers

Answer:

In order to take steps by humans for controlling the change in climate.

Explanation:

It is important that scientist find out the change which occurs in the climate with the passage of time by performing experiments and also repeat the experiments in order to verify their findings. Due to these experiments, scientists also find out the reasons behind of climate change which enable us to take steps in preventing the change that occurs in the environment. it is also important for scientists to be able to explain how they know that climate has changed over time in order to explain that he is not assuming or making predictions, he has to provide evidence for his statement which is only be possible through experiments.

A(n) __________ can be added to milk to neutralize it.

Answers

an acid can be added to milk to nutralize it because milk is a base.

What evidence did the team examine that matter is conserved when dry ice changes into a gas?

Answers

Answer:

Im not sure what you mean but I hope what I wrote helps you!

The Law of Conservation of Matter says that the amount of matter stays the same, even when matter changes form. Sometimes it may seem that matter disappears during a science experiment, but this law tells us that matter cannot magically appear or disappear, it simply changes from one form to another.

Explanation:

determine the mass of a copper (ii) trioxonitrate(v) that will be formed when 15g og copper is added to excess dilute trioxonitrate(v) acid​

Answers

Explanation:

Copper(II) carbonate basic, CuCO3•Cu(OH)2(s), is the dull green colour that forms on copper roofs. Copper oxidises in the air to form an approximately equimolar mixture of CuCO3 and Cu(OH)2.The percentage of CuCO3 in the

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