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
Ray Of Light [21]
3 years ago
10

What would indicate that a physical change takes place when copper is drawn into wire? Copper is heated, changing its molecular

structure. Copper is reshaped, but its molecular structure does not change. A new substance is formed that helps in drawing copper wire. Copper changes its color when drawn into wire.
Chemistry
2 answers:
egoroff_w [7]3 years ago
7 0
Copper is reshaped, but it's molecular structure does not change. So B.
motikmotik3 years ago
4 0
Copper is reshaped, but its molecular structure does not change.
You might be interested in
Ammonium Iodide dissociates reversibly to ammonia and hydrogen iodide:
NeTakaya

Answer:

The partial pressure of ammonia at equilibrium when a sufficient quantity of ammonium iodide is heated to 400°C Is 0.103 atm.

The correct option is A.

Explanation;

NH4I(s) ⇋ NH3(g) + HI(g)Kp = 0.215 at 400°C

NH4I(s)= 0.215

NH3(g)=0.103

HI(g)Kp=0.112

Therefore = 0.103 +0.112= 0.215

Therefore the partial pressure of ammonia at equilibrium is 0.103 atm

7 0
3 years ago
What net ionic equation describes the reaction when these solutions are mixed?
GarryVolchara [31]
Balanced chemical reaction:
2Na₃PO₄(aq) + 3CaCl₂(aq) → 6NaCl(aq) + Ca₃(PO₄)₂(s).
Ionic reaction:
6Na⁺(aq) + 2PO₄³⁻(aq) + 3Ca²⁺(aq) + 6Cl⁻(aq) → 6Na⁺(aq) + 6Cl⁻(aq) + Ca₃(PO₄)₂(s).
Net ionic reaction: 2PO₄³⁻(aq) + 3Ca²⁺(aq) → Ca₃(PO₄)₂(s).
<span>(aq) means that substances are dissociated on cations and anions in water.
</span>(s) means solid.
5 0
3 years ago
What is the volume of a balloon if it contains 3.2 moles of helium at a temperature of 20. °C and standard pressure?
KatRina [158]

Answer:

1.14 mol

Explanation:

3 0
3 years ago
In order to predict the outcome of the reaction, write the molecular, full ionic, and net ionic equations for a mixture of aqueo
Elina [12.6K]

Answer:

See explanation

Explanation:

Full molecular equation;

2NH3(aq) + AgNO3(aq) -------> [Ag(NH3)2]NO3(aq)

Full ionic equation

2NH3(aq) + Ag^+(aq) + NO3^-(aq) --------> [Ag(NH3)2]^+(aq) + NO3^-(aq)

Net ionic equation;

2NH3(aq) + Ag^+(aq) -------->  [Ag(NH3)2]^+(aq)

When Silver nitrate is mixed with a solution of aqueous ammonia, a white and cloudy solution was observed.

6 0
3 years ago
Matter has mass and takes up ______________. The amount of space that matter
svlad2 [7]
Answer:
space

Explanation:
Matter possesses mass and occupies space around it. The space is measured using the property known as volume. Different states of matter occupy spaces in different ways depending on how big, small, rigid, flowing etc. they are. Hence, each state of matter appears a bit differently and they have different volume.
6 0
2 years ago
Other questions:
  • The acid-dissociation constant, Ka, for benzoic acid is 6.5 × 10-5.
    14·2 answers
  • Please help :) Surface currents are caused by ______ . A. differences in water temperature B.high salinity C.differences in dens
    11·2 answers
  • Calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxid
    11·1 answer
  • How many covalent bonds are there in a molecule of cyclohexane?
    9·1 answer
  • The scientific method is great, but how do you think we answer the questions which cannot be tested with an experiment?
    10·2 answers
  • Prepare 100 ml , 3 N HCI from the 6 HCL?
    6·1 answer
  • As the elements of group 16 (VIA) are considered from top to bottom on the Periodic Table, the atomic radii
    5·1 answer
  • Pls help with my fianals​
    6·1 answer
  • Ahhhh someone help me with this
    7·1 answer
  • 3. A speedometer in a car reads 78 miles per
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!