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
Rama09 [41]
3 years ago
10

Which of the following is not a benefit of the water cycle?

Chemistry
2 answers:
BigorU [14]3 years ago
8 0

Answer:

4th line

Explanation:

-water cycle helps regulate the temperature on the Earth.

Andrej [43]3 years ago
7 0

Answer:

I believe it is D

You might be interested in
Which electrons participate in chemical bonding?
OverLord2011 [107]
B.) Valence Electrons. The nucleus of the valence electrons attracts and pulls atoms together.
7 0
3 years ago
Read 2 more answers
Consider the statement: "Copper is a red-brown element obtained from copper sulfide ores by heating the ores in air, which forms
Misha Larkins [42]

Answer:

1, just I) color.

Explanation:

Physical properties are the properties that can be observed without changing the composition of a substance, such as color, temperature, density, and boiling point.

A physical change is a change in the substance that only modifies its aggregation state, such as solidification, and boiling.

Chemical properties are the properties that need a reaction to being observed, such as the combustibility, which needs a combustion reaction to being quantified.

When a chemical reaction occurs, and the composition of the substance change, it's a chemical change.

So, the heating copper with carbon is a chemical reaction, and purification by electrolysis is too. Color is the only physical property.

4 0
3 years ago
A student heats 10.52 g of sodium hydrogen carbonate in a crucible until the compound completely decomposes to sodium carbonate
saveliy_v [14]

Answer:

m_{Na_2CO_3}^{theoretical}=6.636gNa_2CO_3

Explanation:

Hello!

In this case, since the decomposition of sodium hydrogen carbonate is:

2NaHCO_3(s)\rightarrow Na_2CO_3(s)+H_2O(g)+CO_2(g)

Thus, since there is a 2:1 mole ratio between the sodium hydrogen carbonate and sodium carbonate, and the molar masses are 84.01 and 105.99 g/mol respectively, we obtain the following theoretical yield:

m_{Na_2CO_3}^{theoretical}=10.52gNaHCO_3*\frac{1molNaHCO_3}{84.01gNaHCO_3}*\frac{1molNa_2CO_3}{2molNaHCO_3}  *\frac{105.99gNa_2CO_3}{1molNa_2CO_3}\\\\ m_{Na_2CO_3}^{theoretical}=6.636gNa_2CO_3

Best regards!

4 0
3 years ago
Does anyone know how to do this???
Bond [772]
Simply look at the periodic table and fill in what you know based on the table

The number of protons = atomic number
The number of electrons, Which is the same as the atomic number for atoms.

The number of valence electrons that is given by the group that the element is in, the top number of each column in the periodic table.







8 0
3 years ago
The reaction for the combustion of methane is shown below. If 28.70g of methane
antiseptic1488 [7]
Omg hard question but it’s also amazing imma think about that question
8 0
3 years ago
Other questions:
  • Consider the SCl2 molecule. (a) What is the electron config- uration of an isolated S atom? (b) What is the electron con- figura
    11·1 answer
  • Explain why c6h5ch2ch2br is not formed during the radical bromination of c6h5ch2ch3. select the single best answer.
    8·1 answer
  • Consider the reaction 2N2(g) O2(g)2N2O(g) Using the standard thermodynamic data in the tables linked above, calculate Grxn for t
    15·1 answer
  • Enter your answer in the provided box. The partial pressure of CO2 gas above the liquid in a bottle of champagne at 20°C is 4.5
    5·1 answer
  • Which best describes thermal energy? It is the difference between internal energies of two or more substances. It is the sum of
    9·1 answer
  • How many moles of PBr3 contain 3.68 x 10^25 bromine atoms?
    11·2 answers
  • Help anyone please ;)<br> will mark brainliest!!<br> thank you lol &lt;3
    13·2 answers
  • PLEASE HELP ME!
    6·1 answer
  • Considering 2N2H4(g) + N2O4(g) -&gt; 3N2(g) +4H2O(g)
    11·1 answer
  • A student pipets 5.00 mL of a 5.103 M aqueous NaOH solution into a 250.00 mL volumetric flask and dilutes up to the mark with di
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!