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
nevsk [136]
3 years ago
10

hey guys, i found this marble outside and covered in grease. so i took it in to wash it. can you please tell me what it is made

of...plz

Chemistry
2 answers:
larisa [96]3 years ago
6 0

Answer:

it's probably just a ball of metal

Explanation:

maybe a metal marble.

anzhelika [568]3 years ago
5 0
Most likely metal but possibly steel
You might be interested in
Which element is present in all organic compounds?
Helen [10]
<span>it's a. carbon 
</span>contain carbon<span>, </span>hydrogen<span>, oxygen, and nitrogen atoms. Certain amino acids also have sulfur atoms, phosphorus, or other trace elements such as iron or copper.</span>
4 0
3 years ago
What is the oxidation state of each element in the compound CaS04? Include +or - in your answer as appropriate
borishaifa [10]

Answer:therefore the oxidation state of sulphur is +6 in the compound CaSO4.

Explanation:

5 0
3 years ago
Which of the following equations represents a double-displacement reaction?
const2013 [10]
The answer is C. Zn(s) + H2SO4(aq) ZnSO4(aq) + H2(g)
4 0
3 years ago
The scores obtained by a group of boys in a test are 1,3,0,7,8,3,9,9,9,3
Crazy boy [7]
Mean=5.3
Median=5
Mode=3 and 9
4 0
3 years ago
C3H8 + 5O2 → 3CO2+ 4H2O, if 5.75L of oxygen are consumed in the above reaction, how many L of carbon dioxide are produced?
anzhelika [568]

Answer: 3.45 L carbon dioxide are produced

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number 6.023\times 10^{23} of particles.

To calculate the moles, we use the equation:

\text{Number of moles}=\frac{\text{Given volume}}{\text {Molar volume}}=\frac{5.75L}{22.4L}=0.257moles

C_3H_8+5O_2(g)\rightarrow 3CO_2+4H_2O  

According to stoichiometry :

5 moles of O_2 produce =  3 moles of CO_2

Thus 0.257 moles of O_2 will produce=\frac{3}{5}\times 0.257=0.154moles  of CO_2  

Volume of CO_2=moles\times {\text {Molar volume}}=0.154moles\times 22.4L/mol=3.45

Thus 3.45 L carbon dioxide are produced

6 0
3 years ago
Other questions:
  • Gems called rubies are used in lasers.<br> true or false
    14·2 answers
  • The ksp of pbbr2 is 6.60× 10–6. what is the molar solubility of pbbr2 in 0.500 m kbr solution
    5·2 answers
  • Look at the picture. Assume that all of these substances are in different containers. In all of
    14·1 answer
  • Suppose you were making 100.0 mL of a solution that is 0.040 M KCl. What mass of KCl should you weigh to make this solution?
    14·1 answer
  • Concentrated hydrochloric acid is a solution that is 37.5% mass per unit volume HCl(aq) in water. An old bottle of HCl has an un
    12·1 answer
  • WILL MARK BRAINLIEST!
    12·2 answers
  • Shortly after the 2014 AFC Championship game between the New England Patriots and the Indianapolis Colts, the Patriots were accu
    13·2 answers
  • Identify the techniques used in the work-up and characterization of benzoic acid. The analytical method used to confirm the stru
    11·1 answer
  • Protons, Neutrons, and Electrons Practice Worksheet
    13·1 answer
  • What is the number of moles of hydrochloric acid will there be in 10 mL of a given solution with a molarity of 0.5 mol/L?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!