List the bones that comprise the knee joint

PLEASE HURRY IM TIMED According to the diagram of the water cycle, what happens to the water in the oceans before it becomes wat

frozen [14]

According to your diagram A comes first. It’s true because if it doesn’t evaporate everything else can’t happen.

4 0

3 years ago

Define development during sexual reproduction.

MA_775_DIABLO [31]

Development is where the growth of the embryo occurs. After fertilization and implantation, the growth of the embryo occurs once it gets to the uterus. This is the part where the procedure where the embryo turns into a living being over time - depending on the animal that has the said embryo.

3 0

3 years ago

How is enthalpy used to predict whether a reaction is endothermic or exothermic?

Radda [10]

Answer:

$329.48 KJ/mol$ heat is released by the combustion of $2 mol$ of methane

Explanation:

The value of enthalpy determines whether the reaction is exothermic or endothermic. If the enthalpy change is positive, then the reaction is endothermic (heat or energy released) and if the enthalpy change is negative then the reaction is exothermic (heat or energy absorbed).

$2CH_4(g)+4O_2(g) => 2CO_2(g)+4H_2O(g)$

$\Delta H \ reaction=[ 2(\Delta HfCO_2)+ 4(\Delta HfH_2O)]-[2(\Delta HfCH_4)+4(\Delta HfO_2)]$

= $2 ( -(393.5 KJ)/mol)-[2( -74.6 KJ/mol)+4(-241.82 KJ/mol)]$

$= -787 KJ/mol-[ -149.2 KJ/mol-967.28 KJ/mol]$

$= -787 KJ/mol+1116.48 KJ/mol$

$=329.48 KJ/mol$

In this question, the enthalpy of formation has positive value and hence the reaction is endothermic in which the heat is released.

3 0

3 years ago

Materials are able to move across a cell membrane through one of two methods: active transport or passive transport. What is the

zloy xaker [14]

Essentially the answer is in the names. Active transport requires energy to facilitate to movement of the materials while passive transport is something like osmosis which is when the material moves based on concentration in an effort to create equality between the two sides. Basically passive is when the materials move under the own power.

5 0

2 years ago

1. List five things you use daily whose production is a direct result of microbial action. In addition to the product include wh

juin [17]

Answer:

Various day to day use item are made because of direct from a huge amount of different microorganisms. microscopic organisms, molds, or a blend of these. Microorganism which are utilized in food creation such as alcohols, bakery products and esters are formed with fermentation.

1. Drinks like brew and wine ' - Saccharomyces cerevisiae

2. Cheese: Penicillium roqueforti and camemberti

3. Soy sauce: by utilizing aspergillus species particularly A. oryzae

4 Bread and pastry shop items : Saccharomyces cerevisiae or Yeast by producing Co2 by the process of fermentation.

5. Fermented milk items : Lactobacillus, Bifidobacterium and lactococcus.

7 0

3 years ago