Answer:
The reaction is exothermic (option 4)
Explanation:
P4 + 5O2 → P4O10 + 712 kcal
In chemical reactions heat can be absorbed or released:
⇒in the first case, when heat is absorbed, this is called an endothermic reaction. The products have more energy than the reactants. The reaction requires or absorbs energy from it's surroundings. That means that in this reaction energy , in the form of heat, will be absorbed by the reactants.
⇒ when heat is released, this is called an exothermic reaction. The reactants have more energy than the products. The reaction gives or releases energy to it's surroundings. That means that in this reaction energy , in the form of heat, will be released by the reactants.
in the case of P4 + 5O2 → P4O10 + 712 kcal
We notice that on the right side, which is the product side, there is a positive amount of energy. This means that the energy is released by the the reactants, in this reaction. <u>The reaction is exothermic.</u>
.
I'm gonna go ahead and guess, and say its B.
Atomic mass of the parent element =247,
atomic number of the parent element = 95
In the process of β-decay electron leaves the nucleus, so instead of one neutron we get one proton.
Mass of proton≈mass of neutron,
so atomic mass will not change.
Charge of proton =+1, and charge of neutron = 0.
So, we will get atomic number increased by one.
New element (daughter) will have
atomic mass = 247,
and atomic number= 95+1=96
Number 95 - Am (parent),
number 96 - Cm(daughter),
So, from Am-247 we will get Cm-247.
Answer:The 1st Quarter Moon is a primary Moon phase when we can see exactly half of the Moon's surface lit up. ... The First Quarter Moon rises around midday and is visible in the day sky. ... when the Moon has reached the first quarter of its orbit around Earth, hence the name. ... Full Moon Names · Taking pictures of the Moon.
Explanation:
Answer:
The sentences which are made by the given sentences are as :
Wind speeds are below 38 miles per hour, this feature represents the tropical depression.
Explanation:
Here in the question it has been mentioned to form the sentences with the given one:
- Wind speeds are below 38 miles per hour, this feature represents the tropical depression.
- A tropical disturbance leads to an array of clouds which are disorganized also there are thunderstorms with no rotation or little rotation with it.
- When the winds are blowing at a speed of 38 and 74 miles per hour then it is called as a tropical disturbance.
- 74 miles per hour should be the blowing speed of storm in order to consider it to be a Hurricane.
- When the storm reaches a tropical storm stage it gets its name.
- All of the storms which get occurred from time to time, among them half or even all get converted into a Hurricane.
These are the sentences which are made by exploring the whole process and by which a storm becomes a Hurricane.
