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
irakobra [83]
3 years ago
9

PLS HELPA! Which procedure could be used to demonstrate that matter is conserved during a physical change?

Chemistry
2 answers:
Juliette [100K]3 years ago
6 0

Answer:

D

Explanation:

Fudgin [204]3 years ago
4 0

Answer:

im not too smart, but i would say, either b or d

Explanation:

You might be interested in
1) Interactions with light are found all around in nature. Which of these is an example of reflection found in nature?
Elanso [62]

Answer:

d

Explanation:

5 0
3 years ago
Help plz, don't paste link for answers, not going to help at all
vazorg [7]

Answer:

the answer is : true ice and snow melts into water in sublimation

4 0
3 years ago
Read 2 more answers
7. If the pOH of an RbOH solution is 6.32, what is the concentration (molarity) of the base?
liubo4ka [24]

4.79 x 10⁻⁷moldm⁻³

Explanation:

Given parameters:

    pOH of RbOH = 6.32

Unknown:

Molarity of the base = ?

Solution:        

    The pH or pOH scale is used for expressing the level of acidity alkalinity of aqueous solutions.

                      pOH = -log[OH⁻]

  we know the pOH to be 6.32

               6.32 = -log[OH⁻]

               [OH⁻]  = inverse log₁₀(6.32)

                [OH⁻] =  4.79 x 10⁻⁷moldm⁻³

Learn more:

pH brainly.com/question/12985875

#learnwithBrainly

6 0
3 years ago
How many isomers are there with the formula c3h4? include both structural and geometric isomers?
sleet_krkn [62]
There are three possible Isomers for Molecular Formula C₃H₄. Isomers are;

                                           1) Propyne

                                           2) Propa-1,2-diene

                                           3) Cyclopropene

Structures of all three isomers are given below.

There are no geometrical isomers for given molecular formula because geometrical isomers are formed in compounds containing double bond with at least two bulky groups at both sp² hybridized carbons. In given isomers, propyne does not contain any double bond, Propa-1,2-diene is symmetrical in nature while cyclopropene is a 3-membered ring. And for cycloalkenes there must be other groups attached to ring other than Hydrogen atom, hence cyclopropene does not contain any other group, so it can not show geometrical isomerism.

7 0
3 years ago
A reaction where one element takes the place of another element in a compound is an example of which type of reaction? A. Single
Shtirlitz [24]
A. Single Replacement
8 0
4 years ago
Other questions:
  • How many atoms of hydrogen are represented by the formula below? 4H2SO4 A. 1 B. 4 C. 8 D. 28
    13·2 answers
  • Diamond has a density of 3.26 g/cm3. What is the mass of a diamond that has a volume of 0.276 cm3?
    12·1 answer
  • Is concrete a compound element or mixture?
    9·1 answer
  • Which of the following ions has the largest radius? Br- S2- B3+ Mg2+ Li+
    13·1 answer
  • In the reaction below, which species is oxidized? mn (s) + pb(no3)2 (aq) --> mn(no3)2 (aq)+ pb(s) question 5 options:
    11·1 answer
  • Select the correct answer. Iron oxide reacts with aluminum to give aluminum oxide and iron. What kind of chemical reaction is th
    10·2 answers
  • Please help!!
    15·1 answer
  • Consider the redox reaction below talking place in certain electro chemical cell: Cu(s)+cu^2+(aq) -------> Cu^2+(aq) + Cu (s)
    11·1 answer
  • Add 250.0mL to 5.00mL and round off the answer
    7·1 answer
  • Which has a positive impact on land
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!