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
Mademuasel [1]
2 years ago
10

Round to 4 significant figures. 0.007062

Chemistry
1 answer:
lapo4ka [179]2 years ago
8 0

Answer:

Hey there!

This is already rounded to four significant figures!

Zeroes after the decimal but before the 7 don't count, and 7, 0, 6, and 2 count as significant figures.

So, the answer would be 0.007062.

Let me know if this helps :)

You might be interested in
Aluminum hydroxide + nitric acid ➡ aluminum nitrate + water
m_a_m_a [10]

Answer:

Chemical equation:

HNO₃ + Al(OH)₃   →  Al(NO₃)₃ + H₂O

Explanation:

Chemical equation:

HNO₃ + Al(OH)₃   →  Al(NO₃)₃ + H₂O

Balanced chemical equation:

3HNO₃ + Al(OH)₃   →  Al(NO₃)₃ + 3H₂O

Ionic equation:

3H⁺ + 3NO⁻₃(aq) + Al(OH)₃(s)   →  Al³⁺(aq) + 3NO₃⁻¹(aq) + 3H₂O(l)

Net ionic equation:

Al(OH)₃(s)  +  3H⁺(aq)     →  Al³⁺(aq) +  3H₂O(l)

The NO⁻₃ are spectator ions that's why these are not written in net ionic equation. The water can not be splitted into ions because it is present in liquid form.

Spectator ions:

These ions are same in both side of chemical reaction. These ions are cancel out. Their presence can not effect the equilibrium of reaction that's why these ions are omitted in net ionic equation.  

4 0
3 years ago
What is an example of an abiotic factor in an environment?
Lynna [10]
In the Terrestrial ecosystem, examples might include the following such as tempature, light and water. In the Ocean Ecosystem, abiotic factors would include salinity and ocean currents
3 0
3 years ago
How is the water in hydrothermal vents heated
yarga [219]
By hot springs, fumaroles and geysers.
6 0
3 years ago
Read 2 more answers
Facial dimples in man are dominatant over no dimples. Show
Nat2105 [25]
I'm assuming false but really have no clue
3 0
3 years ago
The analysis of a compound gives the following percent composition by mass: C: 52.14 percent; H: 9.946 percent; S: 12.66 percent
wariber [46]

Answer:

C11H25SO4

Explanation:

The total mass of the compound is 253.4 g, so, the mass of each element will be:

C: 52.14% of 253.4 = 0.5214x253.4 = 132.12 g

H: 9.946% of 253.4 = 0.09946x253.4 = 25.20 g

S: 12.66% of 253.4 = 0.1266x253.4 = 32.08 g

O: 25.26% of 253.4 = 0.2526x253.4 = 64.00 g

The molar mass are: C = 12 g/mol, H 1 g/mol, S = 32 g/mol, and O = 16 g/mol

So, to know how much moles will be, just divide the mass calculated above for the molar mass:

C: 132.12/12 = 11 moles

H: 25.20/ 1 = 25 moles

S: 32.08/32 = 1 mol

O: 64.00/16 = 4 moles

So the molecular formula is C11H25SO4

3 0
2 years ago
Other questions:
  • Your chemistry experiment requires you to mix two chemicals in a test tube. To safely observe the chemical reaction you should:
    12·1 answer
  • Two atoms that are isotopes of one another must have the same number of what? Question 6 options: protons all particles atomic m
    7·2 answers
  • What are three elements that have similar chemical properties to oxygen
    8·1 answer
  • What is the temperature of gas and volume of gas
    13·1 answer
  • Fill in the blank spot.
    11·1 answer
  • The formation of nitrogen dioxide and oxygen,
    10·1 answer
  • Help! Please I’m in science
    11·2 answers
  • Could Rutherford make any conclusions about electrons based on the result of experiment?
    10·1 answer
  • What is rainwater harvesting​
    15·2 answers
  • What could cause a build up of algae which would decrease the amount of oxygen available for the organisms in the river? protect
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!