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
Bas_tet [7]
3 years ago
9

PLEASE HELP ILL GIVE BRAINLIST‼️‼️‼️‼️

Chemistry
2 answers:
pantera1 [17]3 years ago
7 0
Natural vs. Synthetic Venn Diagram: Natural chemicals are produced by nature without any human intervention. Synthetic chemicals are made by humans using methods different than those nature uses, and these chemical structures may or may not be found in nature
svetlana [45]3 years ago
4 0
I dknt m ow thisbahHshshhshzhshs
You might be interested in
A mains radio turns ________ energy into ______ energy and ______ energy.
liberstina [14]

Shooting a rubber band turns _________ energy into _______ energy Elastic potential energy into mechanical energy

The ___________ energy from the sun transforms into ____________ energy in plants

Radiant energy into chemical energy

A runner turns _______ energy into ________ energy

Chemical energy into mechanical energy

A hand crank radio turns _____ energy into ______ energy into _____________ energy

Mechanical energy into electrical energy intosound energy

A nuclear power plant turns ______ into ______

Nuclear energy into electrical energy

A fan turns ______ energy into ______ energy

electrical energy into mechanical energy

A flashlight turns _____ energy into ________ energy into ________ energy and ________ energy

Chemical energy into electrical energy into light and thermal energy

A candle turns _______ energy into ___________ energy and ____________ energy

Chemical energy into light and thermal energy

A television uses ___________ energy and transforms it into ___________, ______________, and ____________

Electrical energy into thermal, light and sound energy

Falling water in a dam has the following energy transformations: ______________ to _____________ to _______________ to _____________

Kinetic energy in falling water from mechanical to electrical to light

3 0
2 years ago
When our body temperature starts to increase, the blood flow to the skin increases and we produce large volumes of sweat, which
Troyanec [42]
I took the U.S.A
test prep and the answer is B
5 0
3 years ago
Read 2 more answers
Which of the following equations can be used to determine the change in enthalpy of a system? A. `DeltaH_"reaction"=DeltaH_"prod
Nostrana [21]

<u>Answer:</u> The correct answer is Option D.

<u>Explanation:</u>

Enthalpy change is defined as the difference in enthalpies of all the product and the reactants each multiplied with their respective number of moles. It is represented as \Delta H^o

The equation used to calculate enthalpy change is of a reaction is:  

\Delta H^o_{rxn}=\sum [n\times \Delta H^o_f_{(product)}]-\sum [n\times \Delta H^o_f_{(reactant)}]

Hence, the correct answer is Option D.

6 0
3 years ago
Small bodies from which the planets formed
Aleks [24]
Small bodies from which the planets are formed is called : Planetesimal.
Planetesimals that have survived to the current day are valuable to scientists since they contain information about the Solar System's formation.
7 0
3 years ago
Read 2 more answers
How many particles are present in 12.47 grams of NaCl
liq [111]

Answer:

1.26*10²³ particles are present in 12.47 grams of NaCl

Explanation:

Avogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023 * 10²³ particles per mole. The Avogadro number applies to any substance.

So, first of all you must know the amount of moles that represent 12.47 grams of NaCl. For that it is necessary to know the molar mass.

You know:

  • Na: 23 g/mole
  • Cl: 35.45 g/mole

So the molar mass of NaCl is: 23 g/mole + 35.45 g/mole= 58.45 g/mole

Now you apply a rule of three as follows: if 58.45 grams are present in 1 mole of NaCl, 12.47 grams in how many moles will they be?

moles=\frac{12.47 grams*1 mole}{58.45 grams}

moles= 0.21

You apply a rule of three again, knowing Avogadro's number: if in 1 mole of NaCl there are 6,023 * 10²³ particles, in 0.21 moles how many particles are there?

number of particles=\frac{0.21 moles*6.023*10^{23} }{1 mole}

number of particles= 1.26*10²³

<u><em>1.26*10²³ particles are present in 12.47 grams of NaCl</em></u>

<u><em></em></u>

5 0
3 years ago
Other questions:
  • What is kinetic energy? *
    15·1 answer
  • If element x forms the oxides xo and x2o3 the oxidation numbers of element x are
    10·1 answer
  • Which term is used to describe the reactant that is used up completely and controls the amount of product that can be produced d
    15·1 answer
  • What is the nuclear charge of a berrylium atom?
    6·1 answer
  • What happens to a charged particle that enters a magnetic field?
    15·1 answer
  • I need help plzzz this is for today please help
    11·2 answers
  • Does high or low humidity create fog
    11·1 answer
  • How many moles are in 1.82 x 10^20 atoms of silver?
    13·1 answer
  • Which of the following is ONE of the signs of a chemical change
    14·2 answers
  • Which description accurately represents a water molecule? (1 point)
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!