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
asambeis [7]
2 years ago
7

Please help!

Chemistry
2 answers:
liberstina [14]2 years ago
8 0

Answer:

To help determine what type of rock it is

Explanation:

Geologists can use information such as color, hardness, grain size, texture and other aspects of the rock to figure out the classification of a rock. for example, a light blue rock with no visible grain that is translucent and has a hardness of 9 is most likely going to be a saphire. hope this helps!!!!

Fynjy0 [20]2 years ago
6 0
The hardness would help geologists identify what kind of mineral it is based on the Mohs scale
You might be interested in
Which word would not make this statement true?
statuscvo [17]
The first step in the two-step process of making a solution is the breakdown of the solute source into Atomic particles
for a solution to break the solute must be dissociated and break into the atomic particles
so correct option is D
hope it helps
6 0
3 years ago
I need help, I don't understand the question
Oduvanchick [21]
Remember this. 

Ionic molecules has ionic bonds
Nonpolar molecules has dispersion (Van del Waals)
Polar molecules could either have hydrogen bonding or Dipole-Dipole. Hydrogen bonding is when you have F, O or N with H, every other polar molecule is dipole-dipole.

a. polar- dipole-dipole
b. polar- hydrogen bonding
c. nonpolar- dispersion
d. nonpolar- dispersion
e. polar- dipole-dipole
f. polar-dipole-dipole
g. nonpolar- dispersion
h. polar- hydrogen bonding.
3 0
3 years ago
How many grams of ethylene glycol (c2h6o2) must be added to 1.00 kg of water to produce a solution that freezes at -5.00oc? (kf
leonid [27]

Answer: 167 g


Explanation:


1) The depression of the freezing point of a solution is a colligative property ruled by this equation:


ΔTf = i × m × Kf


Where:


ΔTf is the decrease of the freezing point of the solvent due to the presence of the solute.


i is the Van't Hoof factor and is equal to the number of ions per each mole of solute. It is only valid for ionic compounds. Here the solute is not ionice, so you take i = 1


Kf is the molal freezing constant and is different for each solvent. For water it is 1.86 m/°C


2) Calculate the molality (m) of the solution


ΔTf = i × m × Kf ⇒ m = ΔTf / ( i × Kf) = 5.00°C / 1.86°C/m = 2.69 m


3) Calculate the number of moles from the molality definition


m = moles of solute / kg of solvent ⇒ moles of solute = m × kg of solvent


moles of solute = 2.69 m × 1.00 kg = 2.69 moles


4) Convert moles to grams using the molar mass


molar mass of C₂H₆O₂ = 62.07 g/mol


mass in grams = number of moles × molar mass = 2.69 moles × 62.07 g/mol = 166.97 g ≈ 167 g

6 0
2 years ago
Did the subscripts (the little numbers<br>​
olga_2 [115]
Hey, you didn’t finish your answer!
Can you finish it so I can help you? Thanks!
4 0
3 years ago
Science Work
Oliga [24]
Answer:

D- the grass population and hawk population would decrease. The snake population would increase..
6 0
3 years ago
Other questions:
  • A student attempts to measure the specific heat capacity of an unknown liquid through repeated trials. She measures its specific
    8·1 answer
  • How do you know that Al(OH)3(s) is a base?
    11·2 answers
  • what is the inferred pressure, in million of atmospheres, in Earth's interior at a depth of 2900 kilometers?
    15·1 answer
  • Which of the following accurately pairs the part of an atom to its charge? A. Electron—no charge B. Proton—no charge C. Neutron—
    13·1 answer
  • How is ozone produced?
    8·2 answers
  • How is benzene different from cyclohexane?
    11·1 answer
  • In a neutral atom, the number of protons is always equal to what other part of the atom?
    11·1 answer
  • Let the simulator run for 30 seconds. What happens to the size of the ice?
    13·1 answer
  • You are deciding whether to buy a product from a company. Which is the best
    8·1 answer
  • You have an object with a density of 3 g/cm3 and a mass of 45g, what is the objects volume?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!