answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sergejj [24]
2 years ago
6

Two different ionic compounds each contain only copper and chlorine. Both compounds are powders, one white and one brown. An ele

mental analysis is performed on each powder. Which of the following questions about the compounds is most likely to be answered by the results of the analysis?
A. What is the density of each pure compound?
B. What is the formula unit of each compound?
C. What is the chemical reactivity of each compound?
D. Which of the two compounds is more soluble in water?
Chemistry
1 answer:
mamaluj [8]2 years ago
5 0

Answer:

B.

Explanation:

Elemental analysis involves the actual percentage compositions of each element in the sample of the compounds. We know that there are two different compounds here that both contain copper and oxygen. What we don't know is the actual number of copper or oxygen composed in the compounds.

An elemental composition of these compounds would thus tell us this and will give an idea of the chemical formula of each since we now know quite well the percentage composition of each of these elements

You might be interested in
Acetaminophen (pictured) is a popular nonaspirin, "over-the-counter" pain reliever. what is the mass % (calculate to 4 significa
77julia77 [94]

Acetaminophen as a chemical formula of C8H9NO2. The molar masses are:

C8H9NO2 = 151.163 g/mol

C = 12 g/mol

H = 1 g/mol

N = 14 g/mol

O = 16 g/mol

 

<span>TO get the mass percent, simply multiply the molar mass of each elements  with the number of the element divide by the molar mass of acetaminophen, that is:</span>

%C = [(12 * 8) / 151.163] * 100% = 63.50%

%H = [(1 * 9) / 151.163] * 100% = 5.954%

%N = [(14 * 1) / 151.163] * 100% = 9.262%

<span>%O = [(16 * 2) / 151.163] * 100% = 21.17% </span>

8 0
2 years ago
Chloe wants to lighten the color of her dark hair, which will require the use of both haircolor and hydrogen peroxide. hydrogen
bearhunter [10]

The answer is developer .

Chloe wants to lighten the color of her dark hair, which will require the use of both hair color and hydrogen peroxide.

Hydrogen peroxide (H₂O₂) is an example of a most commonly used developer in hair color.

Hydrogen peroxide lighten hair color, as it can dissolve darker pigment. According to the  natural hair color and the length of time a person will leave hydrogen peroxide on  hair,  hair can turn somewhere on the color spectrum between caramel, orange and yellow.





7 0
2 years ago
When an aldose reacts with Barfoed's reagent, what type of organic compound forms? What type of chemical is this?
Fudgin [204]
Barfoed's test is a concoction test utilized for identifying the nearness of monosaccharides. It depends on the diminishment of copper(II) acetic acid derivation to copper(I) oxide (Cu2O), which frames a block red hasten. 
Barfoed's reagent comprises of a 0.33 molar arrangement of unbiased copper acetic acid derivation in 1% acidic corrosive arrangement. The reagent does not keep well and it is, thusly, fitting to make it up when it is really required. May store uncertainly as per a few MSDS's.
7 0
2 years ago
Read 2 more answers
Consider the following reactions and their respective equilibrium constants: NO(g)+12Br2(g)⇌NOBr(g)Kp=5.3 2NO(g)⇌N2(g)+O2(g)Kp=2
maxonik [38]

Answer:

Equilibrium constant of the given reaction is 1.3\times 10^{-29}

Explanation:

NO+\frac{1}{2}Br_{2}\rightleftharpoons NOBr....(K_{p})_{1}=5.3

2NO\rightleftharpoons N_{2}+O_{2}....(K_{p})_{2}=2.1\times 10^{30}

The given reaction can be written as summation of the following reaction-

2NO+Br_{2}\rightleftharpoons 2NOBr

N_{2}+O_{2}\rightleftharpoons 2NO

......................................................................................

N_{2}+O_{2}+Br_{2}\rightleftharpoons 2NOBr

Equilibrium constant of this reaction is given as-

\frac{[NOBr]^{2}}{[N_{2}][O_{2}][Br_{2}]}

=(\frac{[NOBr]}{[NO][Br_{2}]^{\frac{1}{2}}})^{2}(\frac{[NO]^{2}}{[N_{2}][O_{2}]})

=\frac{(K_{p})_{1}^{2}}{(K_{p})_{2}}

=\frac{(5.3)^{2}}{2.1\times 10^{30}}=1.3\times 10^{-29}

7 0
2 years ago
Read 2 more answers
Which one of the following statements is correct?
adell [148]

Answer:

Tissues form organs, and organs form systems. Hope this helped!

Explanation:

7 0
2 years ago
Other questions:
  • In which of these statements are protons, electrons, and neutrons correctly compared?
    6·2 answers
  • Which set of reactants would result in a neutralization reaction?
    10·1 answer
  • Convert 1.72 moles of magnesium carbonate to formula units
    5·1 answer
  • The temperature reading of –14°C corresponds to a Kelvin reading of:
    10·1 answer
  • An allergy medicine is usually stored in a cabinet at the room temperature where it’s molecules move around each other. By mista
    12·1 answer
  • 7.23 Th e condensation reaction of acetone, (CH3)2CO (propanone), in aqueous solution is catalyzed by bases, B, which react reve
    6·1 answer
  • A student dissolved 4.00 g of Co(NO3)2 in enough water to make 100. mL of stock solution. He took 4.00 mL of the stock solution
    5·1 answer
  • Imagine you needed to identify if an object has undergone a physical change or a chemical change. What information would you nee
    10·1 answer
  • Which best protects animal species that are endangered due to overhunting?
    7·2 answers
  • Air is a ________ mixture??​
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!