1answer.
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
scZoUnD [109]
3 years ago
10

A hydrate is ​typically a crystalline compound in which water molecules are chemically bound to another compound or an element.

​When CuSO​4​​⋅​ 5H​2​O is heated in a crucible, there is a loss of water. How should a student determine the amount of water lost?
a.Subtract the mass of the CuSO​4​ from the mass of CuSO​4​⋅ 5H​2​O
b.Subtract the mass of the CuSO​4​⋅ 5H​2​O from the mass of CuSO​4
c.Add the masses of CuSO​4​⋅ 5H​2​O and CuSO​4
d.Multiply the masses of CuSO​4​⋅ 5H​2​O and CuSO​
Chemistry
1 answer:
dedylja [7]3 years ago
7 0

Answer:

Subtract the mass of the CuSO4⋅ 5H2O from the mass of CuSO4 is the right one

You might be interested in
A student who is studying atomic reactions creates the following Venn diagram.
Lady bird [3.3K]

<u>A. reaction A: chemical; reaction B: nuclear</u>

Answer:

Solution given:

as

Circle 2: Reaction B

-Involves neutrons

-Happens inside atomic nucleus

-Releases relatively large amounts of energy

<u>I</u><u>t</u><u> </u><u>h</u><u>a</u><u>p</u><u>p</u><u>e</u><u>n</u><u>s</u><u> </u><u>o</u><u>n</u><u> </u><u>n</u><u>o</u><u>r</u><u>m</u><u>a</u><u>l</u><u> </u><u>c</u><u>h</u><u>e</u><u>m</u><u>i</u><u>c</u><u>a</u><u>l</u><u> </u><u>reaction</u><u>.</u>

Circle 2: Reaction B

-Involves neutrons

-Happens inside atomic nucleus

-Releases relatively large amounts of energy

<u>I</u><u>t</u><u> </u><u>h</u><u>a</u><u>p</u><u>p</u><u>e</u><u>n</u><u>s</u><u> </u><u>o</u><u>n</u><u> </u><u>n</u><u>u</u><u>c</u><u>l</u><u>e</u><u>a</u><u>r</u><u> </u><u>r</u><u>e</u><u>a</u><u>c</u><u>t</u><u>i</u><u>o</u><u>n</u><u>.</u>

5 0
3 years ago
Read 2 more answers
Write a balanced half-reaction for the reduction of dichromate ion to chromium ion in acidic aqueous solution. Be sure to add ph
Serhud [2]

Answer:

The balanced half-reaction for the reduction of dichromate ion to chromium ion in acidic aqueous solution:

Cr_2O_7^{2-}(aq)+14H^+(aq)+6e^-\rightarrow 2Cr^{3+}(aq)+7H_2O(l)

Explanation:

The reaction :

Cr_2O_7^{2-}\rightarrow Cr^{3+}

Balancing of reaction in an acidic medium:

Step 1: Balance the atoms in the reaction:

Cr_2O_7^{2-}(aq)\rightarrow 2Cr^{3+}(aq)

Step 2: Balance oxygen atom by adding water on the side where no oxygen or less oxygen atom is present;

Cr_2O_7^{2-}(aq)\rightarrow 2Cr^{3+}(aq)+7H_2O(l)

Step 3: Balance the hydrogen atom by adding  hydrogen ions on the side where water is absent:

Cr_2O_7^{2-}(aq)+14H^+(aq)\rightarrow 2Cr^{3+}(aq)+7H_2O(l)

Step 4: Now balance charge by adding electrons on the side where more positive charge is present

Cr_2O_7^{2-}(aq)+14H^+(aq)+6e^-\rightarrow 2Cr^{3+}(aq)+7H_2O(l)

The balanced half-reaction for the reduction of dichromate ion to chromium ion in acidic aqueous solution:

Cr_2O_7^{2-}(aq)+14H^+(aq)+6e^-\rightarrow 2Cr^{3+}(aq)+7H_2O(l)

6 0
3 years ago
What does it mean Emphasis on object vs woman
GenaCL600 [577]

Emphasis on object vs woman simply means <u>s</u><u>-</u><u> </u><u>e-</u><u> </u><u>x</u><u>-</u><u> </u><u>ual</u><u> objectification</u>

This goes to say that it emphasizes seeing women as objects of se- xu- al pleasure

<h3>What is objectification?</h3>

Objectification simply refers to the act of treating or viewing a person as an object, devoid of thought or feeling.

Most of the time, objectification is targeted at women and reduces them to objects of se- xu- al pleasure

So therefore, emphasis on object vs woman simply means se- xu- al objectification

Learn more about se- xu- al objectification:

brainly.com/question/4231708

#SPJ1

6 0
2 years ago
Can anyone answer this? (I thank)
Mamont248 [21]
CO2 will be the first to boil because it will be the first to warm up because it is the closest temperature to 0
4 0
3 years ago
Determine the number of HC=CH, monomeric units in one molecule of polyethylene with a molar
VladimirAG [237]

polyethylene contains HC=CH units.

mass of this is 26 gram/mol

number of such units =13500/26

3 0
4 years ago
Other questions:
  • Solid potassium chlorate (kclo3) decomposes into potassium chloride and oxygen gas when heated. how many moles of oxygen form wh
    8·1 answer
  • Combustion reactions are most conveniently studied _____. hints combustion reactions are most conveniently studied _____. there
    13·1 answer
  • What is the correct name for this compound?<br> B2H3
    11·1 answer
  • CalcuLate the velocity of an electron ejected if 300.0 mm of light is applied to the surface. A wavelength of 795 nm has suffici
    14·1 answer
  • A measure of how much solute is in a solution is its ________?
    12·1 answer
  • Using the periodic table, complete the table to describe each atom. Type in<br> your answers.
    6·1 answer
  • Please help I’ve been stuck for 2 hours
    7·1 answer
  • An avocado has a mass of 215 g and a density of 0.86<br> g/mL. What is the volume of the avocado?
    10·1 answer
  • 43. Use Table 3-1 to identify a substance that undergoes a
    15·1 answer
  • Help with work in chemistryfor a titration, describe the purpose of an indicator and the chemistry behind the process
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!