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
Dahasolnce [82]
3 years ago
13

I NEED HELP ASAP!! I DOMT KNOW HOW TO DO THIS

Chemistry
1 answer:
KatRina [158]3 years ago
3 0
What part of it are you confused about
You might be interested in
The estimate obtained from a sample of which size is likely to be closest to
zubka84 [21]

The answer is C, 85.

8 0
3 years ago
Read 2 more answers
Use the picture below to answer the question. Comparing Wave A (blue) to Wave B (red), Wave B has a
fenix001 [56]

Answer: B longer wave

Explanation:

because

6 0
2 years ago
Write the net ionic equation for the precipitation of calcium sulfide from aqueous solution
Fantom [35]

Answer:

Answer is Ca2+(aq)+S2-(aq)=>CaS(s)

Explanation:

I hope it's helpful!

7 0
3 years ago
This represents three steps of the rock cycle. The sediments are layered and compressed in sedimentary rock. The sedimentary roc
Ber [7]

ANSWER: C) Law of Conservation of Mass

EXPLANATION: In the given cycle, it is seen that th sediments are layered and gets compressed into sedimentary rocks which eventually gets heated and compressed to form metamorphic rocks. But, the total amount of minerals present in the sediments remains the same throughout any stage of the cycle.

This proves the law of conservation of mass which states that mass can not be created nor be destroyed, it can only be transferred from one form to another. So, in this case, only phase transition occurred but the component which is mineral inside the sediments remains constant.

Therefore, the answer is law of conservation of mass.

4 0
3 years ago
Read 2 more answers
Which isotope will spontaneously decay and emit particles with a charge of +2?
VikaD [51]

Answer: The correct option is 4.

Explanation: All the options will undergo some type of radioactive decay processes. There are 3 decay processes:

1) Alpha decay: It is a decay process in which alpha particle is released which has has a mass number of 4 and a charge of +2.

_Z^A\textrm{X}\rightarrow _{Z-2}^{A-4}\textrm{Y}+_2^4\alpha

2) Beta-minus decay: It is a decay in which a beta particle is released. The  beta particle released has a mass number of 0 and a charge of (-1).

_Z^A\textrm{X}\rightarrow _{Z+1}^A\textrm{Y}+_{-1}^0\beta

3) Beta-plus decay: It is a decay process in which a positron is released. The positron released has a mass number of 0 and has a charge of +1.

_Z^A\textrm{X}\rightarrow _{Z-1}^A\textrm{Y}+_{+1}^0\beta

For the given options:

Option 1: This nuclei will undergo beta-plus decay process to form _{25}^{53}\textrm{Mn}

_{26}^{53}\textrm{Fe}\rightarrow _{25}^{53}\textrm{Mn}+_{+1}^0\beta

Option 2: This nuclei will undergo beta-minus decay process to form _{80}^{198}\textrm{Hg}

_{79}^{198}\textrm{Au}\rightarrow _{80}^{198}\textrm{Hg}+_{-1}^0\beta

Option 3: This nuclei will undergo a beta minus decay process to form _{56}^{137}\textrm{Ba}

_{55}^{137}\textrm{Cs}\rightarrow _{56}^{137}\textrm{Ba}+_{-1}^0\beta

Option 4: This nuclei will undergo an alpha decay process to form _{85}^{216}\textrm{At}

_{87}^{220}\textrm{Fr}\rightarrow _{85}^{216}\textrm{At}+_2^4\alpha

Hence, the correct option is 4.

7 0
3 years ago
Read 2 more answers
Other questions:
  • Draw the two-carbon hydrocarbons propane, propene, and propyne. Classify each molecule, and explain the differences between them
    11·1 answer
  • Which of the following describes an element that is reduced in a reaction? It acts in the reactant that is the reducing agent. I
    11·1 answer
  • A student melts 50.0 grams of ice using 16650 J of energy. What is the heat of fusion of ice?
    12·1 answer
  • What is the volume, in liters, of 0.500 mol of c3h3 gas at stp?
    9·1 answer
  • Given the atomic weights of carbon, 12.01; hydrogen, 1.01; and oxygen, 16.0, what is the molar mass of glucose (C6H12O6)?
    9·2 answers
  • Greg classified some substances as shown in the table. Greg's Table Soluble in Water Insoluble in Water Dishwashing detergent Cl
    5·2 answers
  • Find the mass percentage of water in ZnSO4 · 7H20<br><br><br> PLEASE HELP
    13·1 answer
  • The phenomenon that causes air masses and water to bend or curve is the ______________.
    12·1 answer
  • Visible light has an average wavelength of 550 nm. How much energy would be in this wavelength of light? 5 x 10-19​
    11·1 answer
  • What happens when a beaker with cold water is held in a yellow burner flame? Explain this.​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!