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
Leno4ka [110]
3 years ago
8

A rock has a mass of 15 grams and a volume of 5 cm3 what is the density of the object

Chemistry
1 answer:
Zina [86]3 years ago
5 0

Answer:

The answer is

<h2>3.0 g/cm³</h2>

Explanation:

To find the density of a substance when given the mass and volume we use the formula

<h3>density =  \frac{mass}{volume}</h3>

From the question

mass = 15 g

volume of rock = 5 cm³

The density of the substance is

density =  \frac{15}{5}

We have the final answer as

<h3>3.0 g/cm³</h3>

Hope this helps you

You might be interested in
Solution (A) contains 0.01 M of NH4Cl; solution
ArbitrLikvidat [17]

Answer:

NH4Cl, NaCl, Ba(OH)2, NaOH

Explanation:

NH4Cl is an acidic salt formed by the neutralization of a strong acid (HCl) with a weak base (NH3). Hence, it will habe a PH<7 (the lowest PH).

NaCl is a neutral salt,formed by neutralization of a strong acid (HCl) with a strong base (NaOH). Hence, it will have a PH of 7.

Ba(OH)2 is a weak base. Therefore, it will have a PH between 8 and 10.

NaOh meanwhile, is a strong base. Therefore, it will have a PH between 10 to 13.

Hence, we have

NH4Cl < NaCl < Ba(OH)2 < NaOH

5 0
3 years ago
According to the combined gas law, the pressure exerted by a gas is:
sergij07 [2.7K]

Answer : The correct option is, (d) inversely proportional to volume and directly proportional to the kelvin temperature

Explanation :

Boyle's Law : It is defined as the pressure of the gas is inversely proportional to the volume of the gas at constant temperature and number of moles.

P\propto \frac{1}{V}

Charles' Law : It is defined as the volume of the gas is directly proportional to the temperature of the gas at constant pressure and number of moles.

V\propto T

Gay-Lussac's Law : It is defined as the pressure of the gas is directly proportional to the temperature of the gas at constant volume and number of moles.

P\propto T

Combined gas law : It is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

\frac{PV}{T}=K

or,

\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}

From the above information we conclude that the pressure exerted by a gas is inversely proportional to volume and directly proportional to the kelvin temperature.

Hence, the correct option is, (d)

3 0
2 years ago
121) The sugar sucrose has 12 carbon atoms, 22 hydrogen atoms and 11 oxygen
mart [117]

Answer:

Explanation:

121) The sugar sucrose has 12 carbon atoms, 22 hydrogen atoms and 11 oxygen

atoms. How would this be written?

A) Co12H22O1  [Co is cobalt]

<u><em>B) CI2H22011</em></u>     [Yes]

C) C6H1206       [6 C atoms]

D) CacH1206     [Ca is calcium]

122) How are the elements organized on the periodic table?

A) Atomic Mass  [Yes, from lightest to heaviest]

B) Element Name

C) Symbol

D) No Set Organization

123) Which of the following elements would be considered a compound?

A) CH     [Yes, two or more elements combined]

B) Si       [No]

C)F         [No]

D) O6     [No, multiple atoms, but same element]

124) The formula for water is H2O meaning there are 2 Hydrogen atoms and 1

Oxygen. What is the atomic mass of one molecule to the nearest hundredth?

A) 15.99  

B) 16.99

C) 17.99     [Yes, 16 + 2*1 = 18]

D) 18.99

4 0
1 year ago
Of these four liquids, which is the most viscous?
Iteru [2.4K]
I believe the correct answer from the choices listed above is the last option. <span>Of these four liquids, the most viscous one is honey at room temperature. Honey is made up of sugars and the hydrogen of the sugars and water is what makes it more viscous.</span>
6 0
2 years ago
Read 2 more answers
What is the unit for volume?<br> Atm<br> Liters<br> Mol
Mrrafil [7]

Liters.

Hope this helps.

5 0
3 years ago
Other questions:
  • What is the term for the force exerted on an object by another object?
    5·1 answer
  • A standard galvanic cell is constructed so that the overall cell reaction is as given below where M is an unknown metal. 2 Al3+(
    9·1 answer
  • Maria poured 25 grams of water into a beaker. She stirred in 5 grams of salt. The salt dissolved. What is the total mass of Mari
    8·2 answers
  • Which explains the information needed to calculate speed and velocity?
    10·2 answers
  • The reaction NO2(g) + CO(g) → NO(g) + CO2(g) has been found to be second order with respect to NO2 and zero order with respect t
    14·1 answer
  • What happens to the pressure if the gas volume is cut in half while n and I are<br> held constant?
    12·1 answer
  • In the equilibrium and concentration gizmo, you learned that you can predict the direction of a reaction by comparing the reacti
    6·1 answer
  • Number 4 Please Help!!!!
    5·1 answer
  • Witch statement about greenhouse gases is false
    10·1 answer
  • Which of the following examples best demonstrates kinetic energy?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!