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
hammer [34]
3 years ago
15

if you obtain the powder of a mineral by rubbing a mineral on a porcelain plate, which property have u observed?

Chemistry
2 answers:
Nina [5.8K]3 years ago
8 0
The property of the rock is the streak
charle [14.2K]3 years ago
7 0
you have observed streak :)
You might be interested in
A 8L sample of gas at 250 K is cooled to 75 K. What is the volume of the gas after it is cooled?
Stells [14]

by \: Charles'\: law: \:  \\  \frac{v_{1}}{t_{1}}  =  \frac{v_{2}}{t_{2}}  \\

Where v is the volume(in L) and t is the temperature(in °K)

\frac{8}{250}  =  \frac{v_{2}}{75} \\\\4/5 =v_2/3 \\\\\boxed{v_{2} = \frac{12}{5}}\\\\\\\huge{=2.5 l}

7 0
2 years ago
4,600,000,000,000 in scientific notation
BabaBlast [244]
4.6to the twelth power plus ten or something like that it has been a while since I have done the scientific notation but where ever you put in the number of zeros. is twelve
6 0
3 years ago
Balancing Chemical Equation<br> C=H2=CH4
svlad2 [7]

Answer:

C + 2H2 ⇒ CH4

Explanation:

In order to balance a chemical equation you need to make sure that the number of atoms on both sides are equal

C + H2 = CH4

C = 1

H = 2

Products:

C = 1

H = 4

H2 = 2 × 2 = 4

C + 2H2 ⇒ CH4

Hope this helps.

4 0
2 years ago
A cylinder of argon contains 50 L of Ar at 12.4 atm and 127°C . How many moles of argon are in the cylinder
joja [24]

Answer:

18.9 moles

Explanation:

We have the following data:

V = 50 L

P = 12.4 atm

T= 127°C + 273 = 400 K

R = 0.082 L.atm/K.mol (it is the gas constant)

We use the ideal gas equation to calculate the number of moles n of the gas:

PV = nRT

⇒ n = PV/RT = (12.4 atm x 50 L)/(0.082 L.atm/K.mol x 400 K) = 18.9 mol

6 0
2 years ago
Draw the orbital shape of s
Misha Larkins [42]
You cant draw here if i were u i would look it up
8 0
1 year ago
Other questions:
  • What carbon atoms can bond with
    15·1 answer
  • Carbon tetrachloride, CCl4, was once used as a dry cleaning solvent, but is no longer used because it is carcinogenic. At 57.8 °
    14·1 answer
  • Select all that apply:
    12·1 answer
  • (क) लेखक के मन में नदियों के प्रति कैसे भाव थे?नदियों से होने वाले प्रमुख दो<br>लाभ लिखिए।​
    6·2 answers
  • Sodium hydride reacts with excess water to produce aqueous sodium hydroxide and hydrogen gas:NaH (s) H2O (l) → NaOH (aq) H2 (g)A
    7·2 answers
  • In a reaction where A + B AB, what does an equilibrium position of A= 14%, B = 14%, and AB= 72% indicate about the reaction?
    9·2 answers
  • Which substance is an inorganic compound
    8·1 answer
  • A codon that stops the synthesis of a protein molecule
    5·1 answer
  • How to know how many electrons are involved in bonding of propane ?
    5·2 answers
  • How is this type of question solved?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!