Which one of the following is NOT an element in the Periodic Table?californium,einsteinium,seaborgium,xenon,petroleum

Answers

Answer 1

Answer: The correct answer is 'petroleum'. Petroleum is a liquid that can be refined to create fossil fuels, not an element. Californium, einsteinium, seaborgium, and xenon are all elements found toward the bottom of the periodic table.

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Two reasons for the increasing demand for power are:a] reduced efficiency in appliancesb] population growthc] relaxation of government regulationsd] increased consumptione] reduced resourcesf] global warmingg] hole in ozone layer
During a chemical reaction, increasing the temperature often A. increases the rate of chemical change. B. prevents a chemical change from occurring. C. decreases the rate of chemical change. D. reverses the direction of chemical change.
The steps you follow in your experiment
In Figure 7-2. are the animal burrows in B an example of chemical or mechanical weathering?

What is the answer ?

Answers

Answer:

I believe the answer is D

Explanation:

Answer: B.

Explanation: Wire A is shorter and thicker than wire B because the A in the table says low and B is high

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3. Which of these substance has a brown color and isdetected by the spectrophotometer in our reaction?
A) Guaiacol
D) Tetraguaiacol
B) Peroxidase E) Hydrogen peroxide
C) buffer

Answers

Answer:

E) Hydrogen peroxide

Explanation:

Hydrogen peroxide is the substance that has a brown color and is detected by the spectrophotometer in our reaction.

Which following is change from less condensed to more condensed state matter

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Water to Ice is a form of this.

The law of universal gravitation states that any two objects in the universe that have mass. without exception,A. attract each other
B. repel each other
C. combine to provide a balanced force
D. create friction

Answers

Answer:

Option A, attract each other

Explanation:

According to universal law of gravity, two objects which possess mass attracts each other. This force of gravity is given by the following relation

$F = (G * m_(1) * G_(2) )/(r^(2) )\n$

Where

F represents the force of gravity between two objects having mass

$m_(1) , m_(2)\n$ represents the masses of the two objects

G represents the gravitational constant which is equal to

and r represents the distance between the two objects.

$6.67 * 10^(-11) m^(3) kg^(-1) s^(-2)\n$

Hence, the correct answer is option A

A is the correct answer

A world-class cyclist training for the Tour de France increases his respiration rate while a pedaling up hills. What characteristics of life does this represent?

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They are movement, homeostasis, and energy.

What ions rush into a neruron during depolarization

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State in which the resting potential is reversed as sodiumions rush into the neuron. Period during which potassium ions diffuse out of the neuron.

the answer is sodium ions

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