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svetlana [45]
3 years ago
5

Does oxygen get cycled in the atmosphere on earth? How?

Biology
2 answers:
Butoxors [25]3 years ago
5 0

Answer:

what is the potential difference across electrical load that have risistance of 4 and a current of 3 A following through it

katovenus [111]3 years ago
3 0

Answer:

Yes

Explanation:

oxygen is taken out of the air photosynthesis, then photosynthesis produces organic molecules that contain oxygen... through respiration and decay of living organisms, oxygen enters the lithosphere

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Franklin was performing an experiment by combining hydrochloric acid and sodium hydroxide. He measured the mass of his reactant
Naddik [55]

Answer:

B) an error occurred, the mass of the reactants should equal the mass of the products.

Explanation:

The answer choices are:

A) no error occurred, some of the products are always lost as heat.

B) an error occurred, the mass of the reactants should equal the mass of the products.

C) an error occurred, the products should weigh more than the reactants.

D) no error occurred, water is not weighed when determining the weight of the products.

Solution

The basis to answer this question is the law of conservation of mass.

Any chemical reaction satisfies the law of conservation of mass: mass cannot be either created nor destroyed, so, always, the mass of the reactants equal the mass of the products.

Thus, since he measured the mass of his reactant materials to be 35g and he reported that his products weighed 32g, his data are in clear contradiction of the law of conservation of mass. So, there is an error in his results: the mass of the reactants should equal the mass of the products.

6 0
3 years ago
Read 2 more answers
"_____ championed the position called constructivism."
aliina [53]

Piaget championed the position called constructivism. Constructivism is a theory on learning, which suggests that people acquire knowledge from their experiences and together with knowledge that they already have, construct their own understanding of these things. Piaget's theory extends over learning theories, teaching methods, and education reform.






6 0
3 years ago
PLS PLS HELP MEEEE NEED HELP ASAP :)
nalin [4]

Answer:

OMGGG I USE THE SAME THING UR USING

Explanation:

and i believe the answer is a. i may be mistaken so wait for someone else to answer

6 0
2 years ago
Component of earth's life support system where life is found
ella [17]

Answer:

no

Explanation:

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6 0
3 years ago
______________ is a contractile tissue that can accurately change the lumen size of an arteriole so that the conductance of flow
umka21 [38]

Answer: Vascular smooth muscle cells.

Explanation:

Vascular smooth muscle cells are the contractile tissues which regulates flow blood and pressure of the blood by vasoconstriction (contraction) and/or vasodilatation (relaxation).

Vasoconstriction is the contraction of the blood vessels to increase tge pressure of the blood.

Vasodilatation is the relaxation of the blood vessels which results in a decrease in blood pressure.

5 0
3 years ago
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