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
In-s [12.5K]
2 years ago
15

Placing a sample of iron (II) oxide into a graduated cylinder makes the water volume increase 12.0 mL. The weight of the sample

is 76.6 g. What is its density? (Round to the nearest hundredths) g/cm3​
Chemistry
1 answer:
vivado [14]2 years ago
4 0

Answer:6.38

Explanation:D=76.6/12

You might be interested in
The quantitative amount of charge separation in a diatomic molecule contributes to the dipole moment of that molecule. A. True B
SOVA2 [1]

Answer:

The answer is True.

Explanation:

The sentence above is true it all adds up.

8 0
2 years ago
Sodium hydroxide, NaOH, is a strong base that is used in industrial synthesis and processes such as making paper.
geniusboy [140]
No' of molecules divide by avogadro number , 6×6.023×10^23 so (2.2×10^22)÷(6.023×10^23)
= 0.03653 moles
moles × Molar mass = mass
n×Mr=m
0.03653×40 = 1.46 grams
8 0
3 years ago
Read 2 more answers
Select the correct answer. When an atom in a reactant loses electrons, what happens to its oxidation number? A. Its oxidation nu
vfiekz [6]

Answer:

C. Its oxidation number increases.

Explanation:

  • <em><u>Oxidation is defined as the loss of electrons by an atom while reduction is the gain of electrons by an atom</u></em>.
  • Atoms of elements have an oxidation number of Zero in their elemental state.
  • When an atom looses electrons it undergoes oxidation and its oxidation number increases.
  • For example, <em><u>an atom of sodium (Na) at its elemental state has an oxidation number of 0. When the sodium atom looses an electrons it becomes a cation, Na+, with an oxidation number of +1 , the loss of electron shows an increase in oxidation number from 0 to +1.</u></em>
8 0
2 years ago
Read 2 more answers
Which example is an exothermic reaction?
ratelena [41]

Answer:

C. Condensation

Explanation:

When molecules release heat energy, it is called exothermic. In this case, condensation would be an example of this.

5 0
2 years ago
Read 2 more answers
When one form of energy is transformed into another no energy is destroyed in the process?
katrin2010 [14]
Yes that is true, when energy is transformed energy is not destroyed.
8 0
2 years ago
Other questions:
  • The BEST example of diffraction is the image of
    11·2 answers
  • Which of these types of technologies enable us to use the Earth's heat to produce energy?
    5·1 answer
  • Write the overall equation for the conversion of pyruvate to acetyl coa. express your answer as a chemical equation.
    10·1 answer
  • Help please!
    13·1 answer
  • Why is water essential to living things? (1 pc
    5·1 answer
  • 4. What is the rarest element that is natural to earth?
    12·2 answers
  • How many moles of water are needed to produce 56.8 g C2H2?
    11·1 answer
  • Please help !!!!!!!!!!!!
    10·1 answer
  • Is the reaction balanced?
    13·1 answer
  • True or false? the iron recommendation for girls exceeds that of boys during adolescence.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!