Answer:
52.1 degrees C
Explanation:
We need to use the equation: q = mCΔT, where m is the mass in grams, C is the specific heat capacity, and ΔT is the change in temperature.
Here, m = 10 g and q = 125 J. The heat capacity of iron is about 0.461 J/(g * C). And, our initial temperature is 25. So:
125 J = (10 g) * (0.461 J/(g * C)) * (T_f - 25)
Solving for T_f (final temp), we get: 52.1 degrees C
Hope this helps!
Answer:
D. ![K_{a} = \frac{[\text{H}^{+}][\text{NO}_{2}^{-}]}{[\text{HNO}_{2}]}](https://tex.z-dn.net/?f=K_%7Ba%7D%20%3D%20%5Cfrac%7B%5B%5Ctext%7BH%7D%5E%7B%2B%7D%5D%5B%5Ctext%7BNO%7D_%7B2%7D%5E%7B-%7D%5D%7D%7B%5B%5Ctext%7BHNO%7D_%7B2%7D%5D%7D)
Explanation:
The general form of an equilibrium constant expression is
![K = \frac{[\text{Products}]}{[\text{Reactants}]}](https://tex.z-dn.net/?f=K%20%3D%20%5Cfrac%7B%5B%5Ctext%7BProducts%7D%5D%7D%7B%5B%5Ctext%7BReactants%7D%5D%7D)
In the equilibrium
HNO₂ ⇌ H⁺ + NO₂⁻
The products are H⁺ and NO₂⁻, and the reactant is HNO₂.
∴
<span>1. D Domain</span> <span><span>
<span>2. </span></span>K Kingdom</span> <span><span>
<span>3. </span></span>P Phylum</span> <span><span>
<span>4. </span></span>C Class</span>
<span><span>5. </span>O Order</span> <span><span>
<span>6. </span></span>F Family</span> <span><span>
<span>7. </span></span>G Genus</span>
<span><span>8. </span>S Species</span>
The hierarchy of species is mainly used by taxonomist in order to classify, organize and systematize certain species in both the animal and plant kingdom so to speak –living things. These helps them if found a new discovered specie, they cluster it into the appropriate category into where it fits best. There are certain factors to categorize though.
Answer:
1. Evaporation
2. Condensation
3. Precipitation
4. Runoff
Explanation:
The water cycle shows how water moves on the earth as it passes through different phases.
Water on land is stored in oceans, rivers and other water bodies. This water coupled with those in plants and animals are turned into vapor through EVAPORATION. Evaporation facilitates the movement of water on the surface into the atmosphere.
In the atmosphere, the vapor condenses on dust particles found up there. The vapors forms a nuclei around the dust particles and water condenses at the saturated vapor pressure. This forms cloud.
As the water collects more and more, gravity forces the water to fall in form of PRECIPITATION. The precipitation can be in form of snow or rainfall.
When precipitation occurs, they move on the surface as SURFACE RUNOFFS. Some of the runoff goes back into oceans and rivers. Others infiltrates into the ground and collects in the ground water pool under the subsurface. Subsurface water can also get into into other water bodies when the water table coincides with the steam level.
The water in these bodies can then go into the cycle again. The sun is the source of energy for this process.
The correct answer is C
This is because acceleration is change in velocity over change in time
Velocity is speed and direction, because they spin in a circle their direction changes. Therefore do does the acceleration
