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3 years ago

Scientists in ____ discover new products and processes and improve current technology.

Chemistry

2 answers:

klasskru [66]3 years ago

7 0

I think the answer is research and development.

Elanso [62]3 years ago

3 0

Answer;

-Research and development

Scientists in research and development discover new products and processes and improve current technology.

Explanation;

Research scientists are responsible for designing, undertaking and analyzing information from controlled laboratory-based investigations, experiments and trials.

Additionally, research and development is an important means for achieving future growth and maintaining a relevant product in the market. Research may be basic research and applied research applied. Development is when findings of a research are utilized for the production of specific products including materials, systems and methods.

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a water sample is found to have a cl- content of 100ppm as nacl what is the concentration of chloride in moles per liter

ladessa [460]

Answer:

The concentration of chloride ion is $2.82\times10^{-3}\;mol/L$

Explanation:

We know that 1 ppm is equal to 1 mg/L.

So, the $Cl^-$ content 100 ppm suggests the presence of 100 mg of $Cl^-$ in 1 L of solution.

The molar mass of $Cl^-$ is equal to the molar mass of Cl atom as the mass of the excess electron in $Cl^-$ is negligible as compared to the mass of Cl atom.

So, the molar mass of $Cl^-$ is 35.453 g/mol.

Number of moles = (Mass)/(Molar mass)

Hence, the number of moles (N) of $Cl^-$ present in 100 mg (0.100 g) of $Cl^-$ is calculated as shown below:

$N=\frac{0.100\;g}{35.453\;g/mol}=2.82\times 10^{-3}\;mol$

So, there is $2.82\times10^{-3}\;mol$ of $Cl^-$ present in 1 L of solution.

5 0

3 years ago

Guys help me out please

kifflom [539]

Answer:

See explanation

Explanation:

A net ionic equation shows only the chemical species that are involved in a reaction, while a complete ionic equation also includes the spectator ions(Khan Academy).

From the species shown in the image we can write the molecular equation, ionic equation and net ionic equation and also identify the spectator ions.

Chemical equation: KX + BY --------> BX + AY

Ionic Equation; X^- + A^+ + B^+ + Y^- -----> BX + A^+ + Y^-

Spectator ions; A^+ and Y^-

Net Ionic Equation; X^- + B^+ ------> BX

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2 years ago

Part G Wavelength is the distance between the crests (tops) or the troughs (bottoms) of two waves that are next to each other. N

Vlada [557]

Answer: 4.4

Explanation:

Thats what my computer says after i submit answer

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3 years ago

200.0 mL of water is added to 300.0 mL of 3.78 M LiClO3, what is the concentration of the resulting solution?

Kamila [148]

Molarity = number of moles/Volume (L). Solve for the number of moles in the initial solution (3.78M = n/0.3 L) and then use that amount of moles and the new volume (0.5 L) to solve for the new Molarity.

4 0

3 years ago

What are three things that are considered a chemical change

kodGreya [7K]

Answer:

Color change, precipitation, bubbling

Explanation:

Chemical change changes the chemical composition and undergoes a process in which it results as a new substance.

8 0

2 years ago