Answer:
The answer is: <em>It is an exothermic process, because energy is released by the reaction and is gained by the reaction mixture.</em>
Explanation:
Endothermic (endo means in, inside; thermic refers to temperature) reaction is a type of reaction which needs to absorb the energy in order to take place. The energy in the form of the temperature is lost from the reaction mixture.
Exothermic (exo means out, outside; thermic refers to temperature) reaction is a type of reaction in which the energy in form of the temperature is being released.
Since we know that the temperature rose from 24°C to 28°C, that means that the energy was released making this process exothermic.
Answer:
i believe lithium dont clown me if im wrong
Explanation:
Answer:
the orange insects will most likely die first cause there bright and easy to see then the green insects will die.
Explanation:
sorry if its harsh
Answer:
1. Feature
2. Trait
Explanation:
I don't know how to explain why it's a feature, but number 2 is a trait because it makes you "you" (like blue eyes are different)
If we laid each atom end-to-end, they would reach about 20 times the distance from Earth to the Moon.
<em>Assum</em>e that sand has a density of 2 g/cm³ and consists of units of SiO₂.
<em>V</em> = 1 mm³ × (1cm/10 mm)³ = 1 × 10⁻³ cm³
Mass = 1 × 10⁻³ cm³ × (2 g/1 cm³) = 2 × 10⁻³ g
Moles of SiO₂ = 2 × 10⁻³ g × (1 mol SiO₂/60.08 g SiO₂) = 3 × 10⁻⁵ mol SiO₂
Units of SiO₂ = 3 × 10⁻⁵ mol SiO₂ × (6.022 × 10²³ units SiO₂/1 mol SiO₂)
= 2 × 10¹⁹ units SiO₂
Atoms = 2 × 10⁻¹⁹ units SiO₂ × (3 atoms/1 unit SiO₂) = 6 × 10¹⁹ atoms
<em>Assume</em> that each atom has a diameter of 140 pm. If we laid them end to end, they would stretch for
6 × 10¹⁹ atoms × (140 × 10⁻¹² m/1 atom) = 8 × 10⁹ m = 8 × 10⁶ km
That’s 20 times the distance from Earth to he Moon.