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
motikmotik
2 years ago
7

In an experiment, students were given an unknown mineral. The unknown mineral was placed in 150 ml of water. Once in the water,

the volume went up to 165 ml. Then when the same object was dried, then massed on a balance. It had a mass of 225 grams. What is the density of the unknown mineral?
Note: You only have to fill in the numerical answer.
Chemistry
1 answer:
Dahasolnce [82]2 years ago
5 0

Answer:

<h2>15 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}  \\

But from the question

volume = final volume of water - initial volume of water

volume = 165 - 150 = 15 mL

We have

density =  \frac{225}{15}  = 15 \\

We have the final answer as

<h3>15 g/mL</h3>

Hope this helps you

You might be interested in
Who is the father of genetics​
-BARSIC- [3]
Gregor Mendel

Hope this helped !
6 0
3 years ago
Read 2 more answers
What is a small-ball shaped organelle that helps the cell break down nutrients and old cell parts.
Gemiola [76]
Lysosome: only ones that  break down old cell parts<span>
</span>
6 0
3 years ago
If the mass of the object below is 28g, what is the density of the object below. Units are in cm below. Please round your answer
Murljashka [212]

Answer:

d = 0.93 g/cm³

Explanation:

Given data:

Mass of object = 28 g

Volume of object = 3cm×2cm×5cm

density of object = ?

Solution:

Volume of object = 3cm × 2cm ×5cm

Volume of object = 30 cm³

Density of object:

d = m/v

by putting values,

d = 28 g/ 30 cm³

d = 0.93 g/cm³

3 0
3 years ago
Which separation techniques will you apply for the separation of the following? a) oil from water b) kerosene and petrol c) salt
REY [17]

Answer:

A) Separating funnel method

B) Simple Distillation

C) Evaporation

D) Sublimation

E) It is based on the principle of separation whereby even though two substances are dissolved in the same solvent, their respective solubilities could be different. Thus, the component that has more solubility will rise fastest and will therefore get separated from the mixture.

Explanation:

A)

B) Kerosene and petrol are both miscible liquids and the difference in their boiling point temperature is not more than 25°C. Thus, we make use of Simple distillation.

C) Can be separated by evaporation where the water is boiled and it evaporates and leaves the salt behind

D) To separate camphor from salt, we use sublimation so the camphor can change directly from solid to the gas state without passing through the liquid state.

E) Chromatography is used to separate components of a mixture.

It is based on the principle of separation whereby even though two substances are dissolved in the same solvent, their respective solubilities could be different. Thus, the component that has more solubility will rise fastest and will therefore get separated from the mixture.

7 0
3 years ago
How long does it take for a purple stem plant to grow
Gala2k [10]
I couldn't really find anything about the growth time but it does say that it could remain viable in soil for up to 40 years

4 0
4 years ago
Other questions:
  • An anhydrous sample of CaCO3 (100.089 g/mol) weighing 0.9849 g was quantitatively transferred into a 250.0 mL volumetric flask h
    6·1 answer
  • You purchase a bottle of concentrated sulfuric acid from a chemical supplier. The bottle reads Sulfuric acid (95% w/w) plastic c
    9·1 answer
  • Which of these energy resources does NOT pollute when used?
    8·1 answer
  • 1What is one major difference between fossil fuels and biofuels?
    10·1 answer
  • What is the difference between a strong electrolyte and a weak electrolyte
    12·1 answer
  • Momentum is mass times<br><br> A. acceleration<br> B. velocity<br> C. distance
    11·1 answer
  • An unknown compound X has the empirical formula C3H6O and a molecular ion peak in its mass spectrum at m/z 116. X shows no IR ab
    7·1 answer
  • Converting from kilograms meter per second to gram centimetres per minute​
    15·1 answer
  • 2Na(s) + Cl2(g) - 2NaCl(s) + 822 kj
    5·2 answers
  • A student observes that water in a pot on a burner becomes hotter explain how energy is conserved in the situation
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!