Q=mcdeltaT. use this formula and find the answer.
Answer:
3:2, B
Explanation:
The mole ratio is simply the coefficients in a balanced chemical reaction and their relation to each other.
One simple way to easily know b is the correct answer is to look at the units for the answer choices. A is a ratio of Fe to Fe, C is a ratio of Mg to Fe, and d is a ratio of Mg to Fe. That alone must mean B is the correct answer.
We can also use the definition of a mole ratio, as stated above. Given that this equation is balanced, the mole ratio is simply the ratio of the coefficients, and is thus 3:2.
Answer:
6.94 × 10⁴ J
Explanation:
We can calculate the work (W) associated with the compression of a gas at constant pressure using the following expression:
W = -P . ΔV
where,
P is the external pressure
ΔV is the change in the volume
Knowing that 1 atm.L = 101.325 J, the work of compression is:
The positive sign of the work means that the surroundings do work on the system.
Answer:
a skin cell? In all the somatic cells of the body 23 pairs of chromosomes are present. They mean 46 chromosomes in total. In a skin cell of humans, 46 chromosomes are present(human diploid number).
Explanation:
