Answer:
0.71 gal
Explanation:
Step 1: Given data
Density of Diesel (ρ): 0.839 g/mL
Mass of Diesel (m): 2.3 kg
Step 2: Convert "m" to grams
We will use the relationship 1 kg = 10³ g.
2.3 kg × (10³g/1 kg) = 2.3 × 10³ g
Step 3: Calculate the volume (V) of the Diesel sample
We will use the density formula.
ρ = m/V
V = m/ρ
V = 2.3 × 10³ g/(0.839 g/mL)
V = 2.7 × 10³ mL
Step 4: Convert "V" to L
We will use the relationship 1 L = 10³ mL.
2.7 × 10³ mL × (1 L / 10³ mL) = 2.7 L
Step 5: Convert "V" to gal
We will use the relationship 1 gal = 3.79 L.
2.7 L × (1 gal/3.79 L) = 0.71 gal
Answer:
True
Explanation:
Animals have evolved, Charles Darwin proved so during his time and they continue to evolve today based on their environment.
Answer:
0.93 grams per milliliter
Explanation:
Density is the division of mass by volume. It is how "hefty" an object is; for example, wood isn't very "hefty" but metal is. The density is measured in mass over volume, so it is 9.3/10. After applying units, it is 0.93 grams per milliliter.
The answer is Law of _conservation_ of Energy
<h3>Answer:</h3>
False: Isotopes have variable number of Neutrons.
<h3>Explanation:</h3>
Isotopes are defined as those atoms of same element which have same number of protons but different number of neutrons hence, isotopes have different number of neutrons and mass number respectively.
Example:
Hydrogen have three Isotopes;
i) Protium-1 having 0 neutrons
ii) Deuterium-2 having 1 neutron
iii) Tritium-3 having 2 neutrons
While, when the number of electrons for a particular atom varies it results in the formation of ions of that atom.
Example:
Hydrogen when looses one electron it converts into H⁺
Nitrogen when gains three electrons it converts into N⁻³
Chlorine when gains one electrons it converts into Cl⁻
Magnesium when looses two electrons it converts into Mg⁺⁺