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
DIA [1.3K]
3 years ago
5

Metal

Chemistry
1 answer:
skad [1K]3 years ago
5 0

Answer:

\boxed {\boxed {\sf A. \ Nickel}}

Explanation:

First, we must find the density of the unknown metal.

Density is found by dividing the mass by the volume.

d=\frac{m}{v}

The mass of the metal is 89 grams and the density is 10 cubic centimeters.

m= 89 \ g \\d= 10 \ cm^3

Substitute the values into the formula.

d=\frac{89 \ g}{10 \ cm^3}

Divide.

d= 8.9 \ g/cm^3

Now we know the density and can identify the unknown metal.

  • Nickel: 8.9 g/cm³
  • Silver: 10.5 g/cm³
  • Lead: 11.35 g/cm³
  • Mercury: 13.55 g/cm³

The density matches nickel's density. Therefore, this metal must be <u>nickel.</u>

You might be interested in
Which of the following properties of atoms decrease as you move down a column on the periodic table
Vikentia [17]

Answer:

ionization energy

Explanation:

6 0
3 years ago
Changes to Earth's Surface
Ad libitum [116K]

Answer: As the glacier receded, the sediments in the stream built up to result in the formation.

Explanation: study island

4 0
2 years ago
Write and balance the combination reaction for the heating of solid magnesium in the presence of nitrogen gas. In a particular e
Makovka662 [10]

Answer:

The mass of magnesium that has been consumed, was 6.69 g

Explanation:

The reaction is this one:

3Mg (s)  +  N₂(g) →  Mg₃N₂

3 moles of solid magnesium react with 1 mol of nitrogen, to make 1 mol of magnesium nitride.

If 9.27 grams of nitrogen react, we see that ratio is 1:1, so we make 9.27 grams of nitride.

Mass / Molar mass = Moles

9.27 g / 100.9 g/m = 0.092 moles

If we have 0.092 moles of nitride, ratio between Mg is 1:3 so, the rule of three will be:

1 mol of Nitride was produced by 3 moles of Mg (s)

0.092 moles of nitride were produced by, (0.092 .3)/1 = 0.275 moles

Mass og Mg = 24.3 g/m

Molar mass . Moles = Mass

0.275 m . 24.3g/m = 6.69 g

4 0
3 years ago
Would you expect Ibuprofen to be soluble or insoluble in 1.0 M NaOH? Explain.
snow_tiger [21]

Answer:soluble

Explanation: bc its less then NaOh

6 0
2 years ago
Which statements correctly describe the effect of distance in determining the gravitational force and the electrical force? Chec
Luda [366]

Answer:

The gravitational force is inversely proportional to the square of the distance..

The electrical force is inversely proportional to the square of the distance..

Explanation:

From the Newton's law of universal gravity, we understood that the force of attraction between the masses two objects is inversely proportional to the square of the distance apart. Mathematically, it is expressed as:

F = GM1M2/r²

Where:

M1 and M2 are the masses of two objects measured in kilograms (Kg).

G is the gravitational constant with a value of 6.67×10¯¹¹ Nm²/Kg²

r is the distance apart measured in metre (m).

F is the force of attraction measured in Newton (N).

From the equation:

F = GM1M2/r²

The force (F) is inversely proportional to the square of the distance (r) apart. This means that the greater the distance apart, the smaller the force of attraction and the smaller the distance apart, the greater the force of attraction between the masses of the object.

From Coulomb's Law, we understood that the force of attraction between two charged particles is inversely proportional to square of the distance. Mathematically, it expreessed as

F = Kq1q2/ r²

Where:

q1 and q2 are charges of two objects measured in coulomb (C) .

r is the distance apart measured in metre (m)

K is the electrostatic constant with a value of 9×10^9 Nm²/C²

F is the force measured in Newton (N).

From the equation:

F = Kq1q2/ r²

The force (F) is inversely proportional to the square of the distance (r) apart.. This implies that as the distance between the charged particles increase, the smaller the force of attraction between them and as the distance between the charged particles decrease, the greater the force of attraction between the two charged particles.

6 0
3 years ago
Other questions:
  • CHEMISTRY HELPCan someone help me with oxidation and reduction equations???
    11·1 answer
  • The potential energy of a 25 kg bicycle resting at the top of a 3 m high hill is _______________.
    6·1 answer
  • The negatively-charged particle without a real mass that exists outside the nucleus
    12·1 answer
  • if 24 grams of carbon dioxide are needed in each bottle of big red, how many grams of carbonic acid are used
    11·1 answer
  • Why must we do the a lot of quantity urine​
    12·1 answer
  • Please help I am not good with cross words
    11·1 answer
  • explain the difference between temperature and heat also state what determines the direction of heat transfer
    10·1 answer
  • A liquid is cooled during an investigation causing it to solidify. Which of the following most likely occurred?
    14·1 answer
  • . A reaction in which A, B, and C react to form products is first order in A, second order in B, and zero order in C. a) Write a
    9·1 answer
  • When each formula unit of potassium carbonate, k 2 c o 3 , dissociates into ions in solution, there is choose. Of the choose. Ca
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!