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AVprozaik [17]
4 years ago
7

a car manufacturer claims that since their car engines dont get very hot, more of the gasolines energy can be used to make the c

ar move. what law is related to this claim?
Chemistry
1 answer:
ivanzaharov [21]4 years ago
7 0
Newton’s 2nd law? Maybe I’m not completely sure
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The mystery of periodic law was solved when __________ proposed his planetary atomic model of the atom, providing an understandi
Verdich [7]

1. A) Bohr

2. D) When excited electrons return back to the ground state, a photon of light is emitted.

3. D) 10.812 amu

Hope this helps! :)


4 0
4 years ago
Read 2 more answers
Con has a blue-gray color.
Zielflug [23.3K]
1 is the answer. Both are made up of different particles. Same Letters of the periodic just not built the same ? (CO & CO2)& they are both odorless & colorless
4 0
3 years ago
How many moles would there be in 1.5x10^24 molecules of water?
Nookie1986 [14]

Answer:

5.85 moles

Explanation:

Moles in (3.52 X 10^24) molecules of water. 3.52 x 10^24 molecules x `1mol/6.02 x 10^23 molecules = 5.85 moles of H2O.

3 0
3 years ago
A 1.00-L sample of carbon tetrachloride has a mass of 1.58 kg. What is the density of this substance in g/cm3?
Hoochie [10]

Answer:

1.58gcm⁻³

Explanation:

Given parameters:

Volume of sample = 1.00L

Mass of sample = 1.58kg

unknown:

Density of the sample

Solution:

The density of a substance is expressed as its mass per unit volume.

The units of the parameters are given for volume as liters and for mass as kg.

We need to convert to cm³ for volume and into g for the mass:

        1L = 1000cm³:

        Therefore, the volume of the sample is 1000cm³

For the mass:

           1kg = 1000g

           1.58kg gives 1.58 x 1000g = 1580g

The density of the sample will be:

               Density  = \frac{mass}{volume}

               Density = \frac{1580}{1000} = 1.58gcm⁻³

3 0
3 years ago
The symbol for hydronium ion concentration is
Likurg_2 [28]
<span>The symbol for hydronium ion concentration is H+. </span><span>There are quite a few relationships between [H+] and [OH−] ions. And because there is a large range of number between 10 to 10</span><span>-15</span><span> M, the pH is used. pH = -log[H+] and pOH = -log[OH−]. In aqueous solutions, </span><span>[H+ ][OH- ] = 10-14. From here we can derive the values of each concentration.</span>
3 0
3 years ago
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