Answer:
B. Millions of years of high pressure and temperature.
- Millions of years of high pressure and temperature the ancient forests turn into fossil fuels.
Explanation:
Fossil fuels were formed from the dead remains of living organisms millions of years ago. They were formed under high pressure and high temperature.
- Coal : about 300 million years ago the earth had this forest in low lying wetland areas. Due to natural processes like flooding, these forest god buried under the soil. As more soil deposited over them, they were compressed. Under high pressure and high temperature, dead plants got slowly converted into coal.
- Petroleum : Petroleum was formed from organisms living in the sea. As these organisms died, their bodies settled at the bottom of the sea and got covered with layers of soil and clay. Over millions of years, absence of air, high pressure and high temperature transformed the dead organisms into Petroleum.
Coal, Petroleum and natural gas are fossil fuels.
Answer:
1.0 M HNO3 at 40<em>°C</em>
Explanation:
Rate of chemical reaction: This can be defined as the number of moles of reactant, converted or product formed per unit time.
Factors that affect rate of chemical reaction:
(a) Temperature: Generally, an increase in temperature increase the rate of chemical reaction by (1) increasing the number of particles with energy equal to or greater than the activation energy, (2) Increasing the average speed of all the reactant particles, due to greater kinetic energy, leading to higher frequency of collision.
(b) Concentration: An increase or decrease in the concentration of the reactant will result to a corresponding increase or decrease in the effective collision of the reactant and hence in the reaction rate.
other factors that affect the rate of chemical reaction are
(i) Nature of the reactant
(ii) Surface area of reactant
(iii) presence of light
(iv) presence of catalyst.
From the question above,
<em>The condition with the highest temperature and concentration will produce the GREATEST reaction rate.</em>
<em>And that is 1.0 M HNO3 at 40 °C</em>
Answer:
Well there is gravitational force acting on the bucket ,gravitational force is a downward force so it will be acting on the bucket making it harder to lift it
Answer:
<h3>The answer is 12 m/s²</h3>
Explanation:
The acceleration of an object given it's mass and the force acting on it can be found by using the formula
f is the force
m is the mass
From the question we have
We have the final answer as
<h3>12 m/s²</h3>
Hope this helps you
Answer:
K. E = (mv^2)/2
Explanation:
- 25000= (1800× v^2)/2
- 25000×2= (1800× v^2)
- 50000=1800×v^2
- 50000/1800= v^2
- 27.77777777= V^2
- 5.27038=V
Velocity (V) = 5.270 m/sec
Please mark branliest if you are satisfied with the answer. Thanking you in anticipation.
