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3 years ago

The main function of the circulatory system (at least a paragraph)!

1 answer:

5 0

The circulatory system moves blood in our bodies. The blood can move oxygen and nutrients to our muscles and limbs. The heartbeat pushes the blood, and the blood cells carry glucose.

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Use the data, the periodic table, and the station resources to complete the data table and answer the questions below.

lora16 [44]

whats is the question

3 0

3 years ago

A gas is contained in a horizontal cylinder with a moveable piston of cross-sectional area 0.33\text{ m}^20.33 m 2 . The region

-BARSIC- [3]

Answer:

0.02 m

Explanation:

∆U = q + w

w = ∆U - q = (1380 - 2040) J = -660 J

w = -p∆V = -pA∆h

∆h = -w/(pA)

p = 1 bar × (100000 Pa/1 bar) = 100000 Pa

∆h = -(-660 J)/(100000 Pa×0.33 m²) = 0.02 m

4 0

4 years ago

Describe the atomic theory of atoms. How does this help us understand differences the three states of matter?

postnew [5]

1) Everything is made up of atoms. 2)Atoms are indivisible and also undestroyable. 3) The combination of 2+ different kinds of atoms creates compounds 4) A chemical reaction happens when atoms are rearranged/moved around.

4 0

3 years ago

Substances A, B, and C can all act as oxidizing agents. In solution, A is green, B is yellow, and C is red. In the reactions in

igor_vitrenko [27]

Explanation:

Oxidizing agents are defined as the agents which oxidize other substance and itself gets reduced. These agents undergoes reduction reactions.

Reducing agents are defined as the agents which reduces the other substance and itself gets oxidized. These agents undergoes reduction reactions.

When oxidizing agent-A get reduced it changes green to colorless.

$A+e^-\rightarrow A^-$

When oxidizing agent-B get reduced it changes yellow to colorless.

$B+e^-\rightarrow B^-$

When oxidizing agent-C get reduced it changes red to colorless.

$C+e^-\rightarrow C^-$

1) When we added solution C that oxidizing agent-C in solution containing $B^-$ ions changes from red to yellow:

$C+B^-\rightarrow C^-+B(yellow)$

So, in this C is oxidizing $B^-$ ion into B which yellow in color.

C is reduced and $B^-$ ions is oxidized.

Here, $B^-$ are oxidized by C which means that C a better oxidizing agent than B.

2) When a solution of C is mixed with one containing A- ions, the color remains red.

$C+A^-\rightarrow$ no reaction

As we had observed that no color change was seen on adding substance C to the solution with $A^-$ ions which indicates that C was unable to oxidize $A^-$ ions. Hence, not a better oxidizing agent than A

3 0

3 years ago

What are the most enzymes in the body?

Alex787 [66]

Examples of specific enzymes
Lipases – a group of enzymes that help digest fats in the gut.
Amylase – helps change starches into sugars. ...
Maltase – also found in saliva; breaks the sugar maltose into glucose. ...
Trypsin – found in the small intestine, breaks proteins down into amino acids.

4 0

4 years ago