CHEMISTRY COLLEGE

What is anology?
What is microscope?​

Answers

Answer 1
Answer: Microphone thing is a little bit better but it was ok I gotta it looked good but it didn’t get me wrong it I made a comment on my phone number so ttyttttytt was the day I wanna was a good day and then I’ll send ya my stuff and I get to see ya my mom stuff is the best thing ever I just wanna was a

Related Questions

Which of the following solutions would make a good buffer system? (Check all that apply.) A. A solution that is 0.10 M NH3 and 0.10 M NH4Cl B. A solution that is 0.10 M HCN and 0.10 M NaF C. A solution that is 0.10 M HCN and 0.10 M LiCN D. A solution that is 0.10 M HF and 0.10 M NaF
Which substance yields hydroxide ion as the only negative ion in aqueous solution?
Which of the following shows the combustion of a hydrocarbon?A. 2C2H2 +502 + 4CO2 + 2H20O B. CO2 + H2O → H2CO3O C. NaOH + HCl → NaCl + H20O D. C2H4 + Cl2 → C2H4Cl2
(NH4)2S(aq)+SrCl2(aq)→Express your answer as a chemical equation. Enter NOREACTION if no reaction occurs. Identify all of the phases in your answer.
Suppose a scientist made a claim that all spontaneous reactions are exothermic. Whic of the following would provide the strongest challenge to their claim? Suppose a scientist made a claim that all spontaneous reactions are exothermic. Which of the following would provide the strongest challenge to their claim? a. An exothermic reaction which is not spontaneous b. An endothermic reaction that only proceeds when coupled to an exothermic reaction c. An endothermic reaction that only proceeds when a catalytst is present d. An endothermic reaction which is not spontaneous e. All of the above

Draw the mechanism of the reaction of N,N-dimethylaniline and the diazonium salt of sulfanilic acid to form the azo dye.

Answers

Answer:

See attachment

Explanation:

The amine group of N,N-dimethylaniline is an electron-donating group and will cause the benzene ring to act as a nucleophile in an electrophilic aromatic substitution reaction with the diazonium salt of sulfanilic acid.

Increasing which factor will cause the gravitational force between two objects to decrease?weights of the objects
distance between the objects
acceleration of the objects
masses of the objects

Answers

Increasing distance between the objects factor will cause the gravitational force between two objects to decrease. Therefore, option B is correct.

What causes gravitational force to decrease?

The gravitational force grows in proportion to the size of the masses . The gravitational force weakens rapidly as the distance between masses grows. Unless at least one of the objects has a lot of mass, detecting gravitational force is extremely difficult.

Gravity is affected by object size and distance between objects. Mass is a unit of measurement for the amount of matter in an object.

The force of gravity is proportional to the masses of the two objects and inversely proportional to the square of the distance between them. This means that the force of gravity increases with mass but decreases as the distance between objects increases.

Thus, option B is correct.

To learn more about the gravitational force, follow the link;

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Answer:

B

Explanation:

In addition to displacing halide ions, the acetylide ion also adds to carbonyl groups. 2-Methyl-3-butyn-2-ol (MBI) is an acetylenic alcohol used in the manufacture of products for the agrochemical and specialty chemical industry. It can be synthesized by the addition of acetylene to acetone to form the alkoxide ion and, as a second step, protonation of the alkoxide ion to produce the alcohol. Complete the mechanism for 2-methyl-3-butyn-2-ol production by drawing in the products of each step and the missing curved arrows. Sodium amide deprotonates the terminal alkyne to form sodium ethynide. Draw all missing reactants and/or products in the appropriate boxes by placing atoms on the canvas and connecting them with bonds. Add charges where needed. Electron flow arrows should start on an atom or a bond and should end on an atom, bond, or location where a new bond should be create

Answers

Answer:

Explanation:

check below for explanation.

What does it mean when say that a 200-ml sample and a 400-ml sample of a solution of salt have the same molarity? In what ways are the two samples identical? In what ways are these two samples different?

Answers

Answer:

Read explanation.

Explanation:

Molarity is a unit used to measure the (solute)/(solution) ratio per unit volume of the solution. So, in other words, and in our case, we call it the (moles~of~salt)/(per~ml~of~solution) ratio.

So, the amount of solute (moles of salt) per ml of solution will be the same, but the number of moles in each solution will be obviously different.

Hope it helped,

BiologiaMagister

(1) The samples of a salt solution are identical because they have the same amount of solute dissolved in them.

(2) The samples are different because the volume of their solution is different.

What is molarity?

Molarity is a measure of the concentration of a solute in a solution. It is defined as the number of moles of solute dissolved in one liter of solution.

That is, molarity quantifies the amount of the solute in a given volume of the solution.

Molarity (M) = Moles of Solute / Volume of Solution (in liters)

Thus, when it's stated that a 200-ml sample and a 400-ml sample of a solution of salt have the same molarity, it means that both samples have an equal concentration of salt molecules per unit volume, while molecules each sample have different volume.

Learn more about molarity here: brainly.com/question/30404105

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7. What is the molar mass of each of the following elements?a) helium, He(s)
c) potassium, K(s)
b) manganese, Mn(s)
d) boron, B(s)

Answers

Answer:

The molar mass of:

Helium = 4.00 g/mol

Potassium = 39.0983 g/mol

Manganese = 54.94 g/mol.

Boron = 10.81 g / mol

Explanation:

Helium = 4.00 g/mol

Potassium = 39.0983 g/mol

Manganese = 54.94 g/mol.

Boron = 10.81 g / mol

Match the vocabulary word with the defination.___1.Hypothesis
___2.Variables
___3.Conclusion
___4.Scientific Method
___5.Procedure

a.The steps you take to complete the experiment
b.Factors that changes in an experiment
c.A possible solution to a problem
d.The result of the experiment
e.The process scientist follow to complete an investigation

Answers

Hypothesis - A possible solution to a problem

Variables - Factors that changes in an experiment

Conclusion - The result of the experiment

Scientific Method - The process scientists follow to complete an investigation

Procedure - The steps you take to complete the experiment

Answer:

1. d

2. b

3. d

4. e

5. a

explanation:

there's nothing else to explain
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A mass of 34.05 g of H2O(s) at 273 K is dropped into 185 g of H2O(l) at 310. K in an insulated container at 1 bar of pressure. Calculate the temperature of the system once equi- librium has been reached. Assume that CP, m for H2O is con- stant at its values for 298 K throughout the temperature range of interest.
A student was asked to prepare exactly 250 mL of a 0.500 M aqueous potassium hydroxide solution. What mass of potassium hydroxide (molar mass = 56.10 g/mol) must the student dissolve in the 250 mL of solution? 1. 28.1 g 2. 3.0 g 3. None of these 4. 14.0 g 5. 7.01 g 6. 56.1 g