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
Elis [28]
3 years ago
11

Imagine cutting a bar of pure gold in half, and then cutting it in half again. Could you divide the gold like this forever?

Chemistry
1 answer:
IgorLugansk [536]3 years ago
6 0

Answer:no

Explanation:no

You might be interested in
A 1M solution is made of each item in a pair. When would this combination create a buffer? Chose the pairs below that you could
monitta

Answer:

b. HCOOH/ NaHCOO.

Explanation:

A buffer system may be formed in one of two forms:

  • A weak acid with its conjugate base.
  • A weak base with its conjugate acid.

Chose the pairs below that you could use to make a buffered solution.

a. HCI/NaOH. NO. HCl is a strong acid and NaOH is a strong base.

b. HCOOH/ NaHCOO. YES. HCOOH is a weak acid and HCOO⁻ (coming from NaHCOO) is its conjugate base.

c. HNO₂/H₂SO₃. NO. Both are acids and they are unrelated to each other.

d. NaNO₃/ HNO₃. NO. HNO₃ is a strong acid.

7 0
2 years ago
Determine the percent water in MgSO4*7H20?
Semmy [17]

Answer:

\% H_2O=51.2\%

Explanation:

Hello!

In this case, since the percent water is computed by dividing the amount of water by the total mass of the hydrate; we infer we first need the molar mass of water and that of the hydrate as shown below:

MM_{MgSO_4* 7H_2O}=120.36 g/mol+7*18.02g/mol\\\\MM_{MgSO_4* 7H_2O}=246.5g/mol

Thus, the percent water is:

\% H_2O=\frac{7*MM_{H_2O}}{MM_{MgSO_4* 7H_2O}} *100\%\\\\

So we plug in to obtain:

\% H_2O=\frac{7*18.02}{246.5} *100\%\\\\\% H_2O=51.2\%

Best regards!

5 0
3 years ago
What are the main ways that carbon dioxide enter the atmosphere?
BaLLatris [955]
Photosynethesis, respiration, and combustion.
 
7 0
3 years ago
The water cycle imagine you are a rain drop
Soloha48 [4]
Evaporation,condensation,precipitation,sublimation,transpirtation,runoff and infiltration
7 0
3 years ago
Specific heat capacity is the quantity of heat required to raise the temperature of one mole of a substance by one degree Celsiu
sattari [20]

Answer

False

Explanation

Specific heat is the amount of heat per unit mass required to rise the temperature of a substance by one degree celsius.It is expressed in units of thermal energy per degree temperature.A calorimeter is used when measuring the heat capacity of a reaction.Molar heat capacity is amount of heat required to raise the temperature of a substance by one degree Celsius.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Do bromide ions accept or donate an electron in redox reactions? how do you know?​
    10·1 answer
  • When electrons move from the fourth energy level to the second energy level , they emit visible light. Why is the light emitted
    9·1 answer
  • What is a substrate?
    11·2 answers
  • Which molecule is an alkene?
    9·1 answer
  • How many megagrams are there in 7.020 * 10^-10 nanograms
    5·2 answers
  • Suppose you fill a grass with ice cubes. When the ice cubes melt, is the glass still full?
    12·1 answer
  • The balanced net ionic equation for precipitation of CaCO3 when aqueous solutions of Li2CO3 and CaCl2 are mixed is
    13·1 answer
  • What is the value of for this aqueous reaction at 298 K? <br> A+B↽⇀C+D<br> ΔG°=12.86 kJ/mol<br> K=
    5·1 answer
  • 18. Make Q the subject of the equation E = QxV U
    15·1 answer
  • Which of the following would be appropriate reason(s) for scientists to reject atomic theory?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!