Answer:
402.7897
Explanation:
Pretty sure but not 100% about it.
grams in 2 pounds = 907.184 * specific heat of iron = .444
=402.789696
I think the correct answer from the choices listed above is option A. <span>In an exothermic reaction, the bonding energy of the product is </span><span>less than the reactant because it is only at this condition that the energy is released by the reaction.</span>
1. research question
2. background research
3. hypothesis
4. <span>Controlled experiment
5. data analysis
6. data collection
7. conclusion</span>
The first one is Solid, or A.
The second: B or liquids.
Third: also B I think.
Hope this helps.
The correct amount of force i believe is
f= 40 newton
i got the answer by using the formula below
force = mass x acceleration
f=5kg *8.0 m/s^2