Which characteristics describe bacteria? check all that apply. are microscopic are single celled are multicelled have shapes that include sphere, rod, and spiral have shapes that include prism, cone, and spiral have nuclei and membrane-bound organelles do not have nuclei and membrane-bound organelles

Are microscopic

Are single celled

Have shapes that include sphere, rod, and spiral

Do not have nuclei and membrane-bound organelles

Explanation:

did on edg

answer: the enthalpy of the overall chemical reaction is +87.88 kj or +88 kj.

according to hess's law, the overall enthalpy of a reaction is the difference between the sum of enthalpy values of all the products and the sum of enthalpy values of all the reactants.

δh(reaction) = ∑nδh(products) - ∑nδh(reactants)

δh(reaction) = [δh +δh] - [δh]

δh(reaction) = [1(-287.02) + 1(0) ] - [1(-374.9)] kj = +87.88 kj

here, δh (pcl3) = -287.02 kj, δh(cl2) = 0, δh(pcl5) = -374.9 kj

therefore, enthalpy of the overall reaction is +87.88 kj or +88 kj.

while cooking a piece of 1/2 pound beef steak, a cast iron pan (2.4kg in weight) was heated 260 celsius.