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
vesna_86 [32]
3 years ago
10

A blank is a substance that is made by combining two substances

Chemistry
1 answer:
Simora [160]3 years ago
7 0
Do you mean; " A blank is a substance that is made by combining two elements?" (I'm not sure if substances is the right term)

If so then the blank is a compound. 
You might be interested in
Can someone help your amiga :(??
bekas [8.4K]

i think the answer is C but don't take my word for it

4 0
3 years ago
Explain the differences between bronze and brass, and steel and cast iron. Which is best used for cooking wares?
Dennis_Churaev [7]

Answer:

Steel and cast iron

Explanation:

They are all metal but assuming that you are finding the best material for your pan i suggest going for steel or cast iron

8 0
2 years ago
Calculate the standard potential for the following galvanic cell: Ni(s) | Ni2+(aq) || Ag+(aq) | Ag(s) which has the overall bala
mylen [45]

Answer:

1.06  V  

Explanation:

The standard reduction potentials are:

Ag^+/Ag     E° =  0.7996 V  

Ni^2+/Ni     E° = -0.257   V

The half-cell and cell reactions for Ni | Ni^2+ || Ag^+ | Ag are

Ni → Ni^2+ + 2e-                     E° = 0.257   V

<u>2Ag^+ 2e- → 2Ag               </u>    <u>E° = 0.7996 V </u>

Ni + 2Ag^+ → Ni^2+ + 2Ag     E° = 1.0566  V

To three significant figures, the standard potential for the cell is 1.06 V .

8 0
3 years ago
A sample of ideal gas is in a sealed container. The pressure of the gas is 485 torr , and the temperature is 40 ∘C . If the temp
Fantom [35]

Answer:

537.68 torr.

Explanation:

  • We can use the general law of ideal gas:<em> PV = nRT.</em>

where, P is the pressure of the gas in atm.

V is the volume of the gas in L.

n is the no. of moles of the gas in mol.

R is the general gas constant,

T is the temperature of the gas in K.

  • If n and V are constant, and have different values of P and T:

<em>(P₁T₂) = (P₂T₁).</em>

P₁ = 485 torr, T₁ = 40°C + 273 = 313 K,

P₂ = ??? torr, ​T₂ = 74°C + 273 = 347 K.

∴ P₂ = (P₁T₂)/(P₁) = (485 torr)(347 K)/(313 K) = 537.68 torr.

3 0
3 years ago
How does velocity and mass affect momentum?
ollegr [7]

Velocity and mass are directly proportional to the quantity of momentum by:

p = mv. Therefore, and increase in either velocity or mass will lead to an increase in momentum and vice versa. Momentum during a reaction is always conserved, meaning that the mass and initial velocity before a reaction will always be equal to the change in mass and velocity produced after the reaction. Kinetic energy after a reaction, however, is not always conserved. For example if a fast moving vehicle collided with a stationary vehicle, and moved together, the overall kinetic energy would be after the reaction, as a heaver mass would be moved by the same velocity causing a decrease in kinetic energy.

I don't know if this is exactly what you are looking for, but in physics this is how it is understood.

4 0
3 years ago
Other questions:
  • How do hydrogen ions (h+) and chloride ions (cl–) get into the lumen of the stomach?
    15·1 answer
  • Which number should be placed in the blank to make the equation balanced? ___ Mg + P4 → 2 Mg3P2
    10·1 answer
  • [Gradpoint-Question AK-3] Acid is added to a beaker containing crushed marble. What effect does stirring this mixture have on th
    9·2 answers
  • Which of the following hydrocarbons has a double bond in its carbon skeleton?1) C3H82) C2H63) CH44) C2H45) C2H2
    5·1 answer
  • When the process of condensation occurs, the kinetic energy of particles
    15·1 answer
  • Question 1 of 6
    14·1 answer
  • What is the pressure of 4 moles of helium in a 50 L tank at 308k using PV=nRT
    12·2 answers
  • Based on your lab report, provide the chemical reaction that occurs in Benedict's test for the following molecule.​
    15·1 answer
  • Can someone please help me, i'll give you a 5 star rating and brainliest answer​
    8·1 answer
  • A balloon contains 7. 2 L of helium. The pressure is reduced to 2. 00 atm and the balloon expands to occupy a volume of 25. 1 L.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!