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FromTheMoon [43]
3 years ago
12

All scientific discoveries are made in a laboratory. True False pls helppp

Chemistry
1 answer:
goblinko [34]3 years ago
4 0

Answer:

i would say false.

Explanation:

some discoveries are made as people continue exploring the world...........they are just prooved in the laboratory, while there are other which are still made in the lab and are also examined there.

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Which contains more hydrogen atoms? a five-carbon saturated hydrocarbon molecule or a five-carbon unsaturated hydrocarbon molecu
Studentka2010 [4]

The organic compound which contains more hydrogen atoms is a five-carbon saturated hydrocarbon molecule

<h3>What are organic compounds?</h3>

Organic compounds are compounds are those compounds containing carbon and hydrogen only.

Some classes of organic compounds are:

  • Alkanes
  • Alkenes
  • Alkynes

So therefore, the organic compound which contains more hydrogen atoms is a five-carbon saturated hydrocarbon molecule

Learn more about organic compounds:

brainly.com/question/1594044

#SPJ1

4 0
1 year ago
16.H2O (water) and NaCl (salt) are _________ that are in salt water, which is a(n) __________. Water and salt contain the ______
trapecia [35]
#1...<span>Mixture; compounds; elements
#2...Protons 

</span>
4 0
3 years ago
It takes 486.0 kJ/mol to convert sodium atoms to Na+ ions. Sodium atoms absorb and emit light of wavelengths 589.6 and 590.0 nm.
solmaris [256]
We first calculate the energy contained in one photon of this light using Planck's equation:

E = hc/λ

E = 6.63 x 10⁻³⁴ x 3 x 10⁸ / 590 x 10⁻⁹
E = 3.37 x 10⁻²² kJ/photon

Now, one mole of atoms will excite one mole of photons. This means that 6.02 x 10²³ photons will be excited

(3.37 x 10⁻²² kJ/photon) x (6.02 x 10²³ photons / mol)

The energy released will be 202.87 kJ/mol
8 0
3 years ago
I have a buddy who recycles electronics, and isolates metals from the connector pins electrical boards. He isolates gold, for ex
Kisachek [45]

Answer:

Theoretical yield = 3.75g

Explanation:

Percent yield is defined as one hundred times the ratio between actual yield and theoretical yield. The expression is:

Percent yield = Actual Yield / Theoretical Yield * 100

In the problem, your actual yield was 3-00g.

Percent yield is 80.0%.

Solving for theoretical yield:

80% = 3.00g / Theoretical yield * 100

Theoretical yield = 3.00g / 80.0% * 100

<h3>Theoretical yield = 3.75g</h3>
3 0
3 years ago
Make a Li atom with a mass number of 7. How many electrons did you place in the outermost orbital
Pani-rosa [81]

Answer:

1 electron

Explanation:

Look at the periodic table

Li is the 3rd element

now write the electron configuration -> 1s^2 2s^1

the 2nd electron shell has 1 electron as shown above so its 1 electron

3 0
3 years ago
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