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kompoz [17]
3 years ago
14

PLEASE HELP MEEE I WILL MARK BRAINLIST FOR THIS ITS SUPER SIMPLE....BUT U MUST TYPE EVERYTHING needed ASAP

Chemistry
2 answers:
lina2011 [118]3 years ago
7 0

Answer: B

Explanation:

aleksandrvk [35]3 years ago
5 0

Plastic is a big problem in the ocean. Every year, humans produce over 300 million tons of plastic. A lot of that plastic ends up in the ocean.

  • Some plastic gets washed into rivers or streams.
  • Some plastic is blown into the ocean from land.
  • Some plastic is even thrown into the ocean on purpose.

I really hope this helps!

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What is not a function of stomata in the leaves of a plant (PLEASE ANSWER HURRY)
DaniilM [7]
Answer
B
Explanation
3 0
3 years ago
In two or more complete sentences explain how to balance the chemical equation, KClO3 ⟶ KCl + O2 and include all steps. Write yo
Serggg [28]

Answer:

2KClO3 -------> 2KCl + 3O2

Explanation:

First, in balancing a chemical reaction such as the one given in the question, you should understand that for an equation to be balanced, the number of atoms and ions on both sides of the equation that is the right and left side must be equal. This follows the law of conservation of mass which tells us that matter can neither be created nor destroyed but can be changed into another form.

Next is to begin balancing the equation by identifying and writing down the substances given:

KCl03 ---------> KCl + O2

Next is to count he number of the individual atoms on each side and find out if they are the same on both sides and if not you must follow the next step.

Add a corresponding number and use it to multiply the atoms involved

KClO3 ---------> KCl + O2

Oxygen is 3 on the left side and two on the other side, so we multiply the left hand side by 2 and the right hand side by 3

2KClO3 -----> KCl + 3O2

The potassium and Chlorine are no longer balanced, so you multiply the right had=nd side of KCl by 2.

2KClO3 -----> 2KCl + 3O2

The reactionis herefore balanced as both sides have equal number of atoms and ions.

5 0
4 years ago
You are driving down the road at 35 mph. what is your speed in m/s?
Lady_Fox [76]

Answer:

15.64m/s

Explanation:

This is a unit of speed which is the rate of change of distance with time

I am driving at 35mph: and I want to express as m/s

  mph means miles per hour

This suggests that I have to convert miles to m and hrs to secs:

for distance                    1.609km = 1mi

                                        1000m = 1km

for time:

                 1hr = 60minutes

                 1min = 60seconds

Using dimensional analysis:

      \frac{35miles}{1hour} x  \frac{1.609km}{1miles} x  \frac{1000m}{1km} x  \frac{1hour}{60min} x  \frac{1min}{60seconds}

   = 15.64m/s

5 0
3 years ago
reddit The amount of NE released by sympathetic nerve terminals will be most strongly influenced by a change in which of the fol
erastovalidia [21]

Answer: Extracellular [Ca2+]

Explanation:

The sensitivity and density of the alpha receptors serve to <em>enhance the response to the release of</em> <em>norepinephrine (NE)</em> . However, they do not exert a strong influence as the concentration of calcium ions on the amount of <em>norepinephrine (NE)</em> released by sympathic nerve terminals.

The release of neurotransmitters depends more on either an external or internal stimulus.This results in an action potential which on reaching a nerve terminal, results in the opening of Ca²⁺ channels in the neuronal membrane. Because the extracellular concentration of Ca²⁺ is greater than the intracellular Ca²⁺ concentration, Ca²⁺ flows into the nerve terminal. This triggers a series of events that cause the vesicles containing <em>norepinephrine (NE)</em> to fuse with the plasma membrane and release <em>norepinephrine (NE)</em> into the synapse. The higher the action potential, the higher the Ca²⁺ flow into the terminals resulting in higher amount of <em>norepinephrine (NE)</em> into the synapse, and vice versa.

Catechol-O-methyltransferase (COMT) is one of several enzymes that degrade catecholamines such as dopamine, epinephrine, and norepinephrine. It serves a regulatory purpose to lower the concentration of norepinephrine upon its release from nerve terminals.

8 0
3 years ago
Why is the adhesive property of the pvc plastic important? 1 pt?
GrogVix [38]
 I believe this property is vital since the sticky nature allows the wells to coat easily with the desired antigen by simply adding a small amount of it and allowing it time to incubate. Adhesion is the tendency of dissimilar particles or surfaces to cling to one another ( cohesion refers to the tendency of similar or identical particles/surfaces to cling to one another).
3 0
3 years ago
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