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
mixas84 [53]
3 years ago
10

Calculate the speed of a marble that rolls 9 cm in 4 seconds

Chemistry
1 answer:
cupoosta [38]3 years ago
6 0

Answer:

2.25

Explanation:

9/4

You might be interested in
I need help on these 2 questions plzz can someone help
Ivan

Answer:

plants meat

Explanation:

3 0
3 years ago
Read 2 more answers
Given the following equation: 8Fe+S8=8FeS
maxonik [38]

Answer:

a. 2954g of FeS

b. 1143g of FeS

Explanation:

Based on the reaction:

8 Fe + S₈ → 8 FeS

<em>8 moles of Fe reacts with 1 mole of S₈ to produce 8 moles of FeS</em>

<em />

a. 4.2mol sulfur produce:

4.2mol S₈ × ( 8 mol FeS / 1 mol S₈) = <em>33.6mol FeS</em>. As molar mass of FeS is 87.92g/mol, mass is:

33.6mol FeS × ( 87.92g / 1 mol FeS) = <em>2954g of FeS</em>

<em />

b. 13mol Fe produce:

13mol Fe × ( 8 mol FeS / 8 mol Fe) = <em>13mol FeS</em>. In mass:

13 mol FeS × ( 87.92g / 1 mol FeS) = <em>1143g of FeS</em>

5 0
3 years ago
What is an example of a soultion
Marrrta [24]

Answer:

Did you mean solution??

In chemistry, a solution is considered as a special type of homogeneous mixture composed of two or more substances. In such a mixture, a solute is a substance dissolved in another substance, known as a solvent.

Eg: sweet tea or coffee (sugar added to solution)

     bleach (sodium hypochlorite dissolved in water)

HOPE IT HELPS :)

3 0
3 years ago
What is the nuclear binding energy of an atom that has a mass defect of 5.0446 x 10-29 kg?
lutik1710 [3]
I think it is 4.54 x 10-12
3 0
3 years ago
Read 2 more answers
What will happen to the volume if the number of moles of a gas is decreased at constant temperature and pressure?
RoseWind [281]
The moles will probably die
4 0
3 years ago
Read 2 more answers
Other questions:
  • A student chromatographs a mixture and after developing the spots with a suitable reagent he observes the following
    12·1 answer
  • How many moles of Ag can be produced if 350. g of Cu are reacted with excess AgNO3 according to the equation Cu(s) + 2AgNO3(aq)
    7·2 answers
  • How many moles of HNO3 will be produced 3 NO2+H2O=2HNO3+ NO
    11·1 answer
  • What is the frequency of a wave?
    15·1 answer
  • Write a nuclear equation to represent radium-226 decaying to radon-222 plus an alpha particle.
    11·1 answer
  • If methyl orange is added to a substance and it turns the substance red, what does this tell you about the pH of the substance?
    9·2 answers
  • PLEASE HELP 50 POINTS!!
    8·1 answer
  • What are the 4 parts of cell theory???? List like <br> 1.<br> 2.<br> 3.<br> 4.
    15·1 answer
  • Determine the pH at the equivalence point for the titration of 40.0 mL of 0.1 M HNO2 by 0.200 M KOH (Example 16.7). (The pKa of
    12·1 answer
  • Select the equality for the following: 1 L is 1.06 QT
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!