AFTER the digestive system process food, the energy stored in cells as ______________ .

Chemistry

1 answer:

galben [10]3 years ago

6 0

C) Thermal energy. Your body turns the mechanical energy into thermal energy.

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Elements in a group have the same number of valence electrons and the same ____

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The elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons. They are the electrons involved in chemical bonds with other elements. Every element in the first column (group one) has one electron in its outer shell.

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a car traveling at 20 m/s starts to decelerate steadily it comes to a complete stop in 10s .what is its acceleration

Anna007 [38]

A car traveling at 20 m/s starts to decelerate steadily it comes to a complete stop in 10s. The equation for the acceleration is velocity divided by time. So divide 20 m/s by 10 s and you will get an acceleration of 2 m/s2.

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Match each term with its definition. The position of an equilibrium always shifts in such a direction as to relieve a stress app

Lina20 [59]

Answer:

The position of an equilibrium always shifts in such a direction as to relieve a stress applied to the system. - Le Chatelier's principle

A molecule that donates a proton when it encounters a proton acceptor. - Bronsted-Lowry acid

Occurs when a reaction involving an acid and its conjugate base is combined with a second reaction involving a base and its conjugate acid. - Neutralization

It ionizes completely when dissolved in water. - Strong acid

The shift in the position of equilibrium caused by the addition of a participating ion. - Common ion effect

It only partially ionizes when dissolved in water. - Weak electrolyte

It is capable of acting as either an acid or a base depending upon the solute. - Amphoteric solvent

The act of self-ionization of a solvent to produce both a conjugate acid and a conjugate base. - autoprotolysis

A chemical species that bears both positive and negative charges. - zwitter ion

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3 years ago

1. How many isotopes does hydrogen have?

natima [27]

Answer:

There are 3 isotopes of the element hydrogen.

Explanation:

hydrogen, deuterium, and tritium.

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Bromine is is reddish-brown liquid that boils at 59 degrees. bromine is highly reactive with many metals, for example, it reacts

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A physical property of an element is a property of an element that can observed or measured without changing the chemical nature of the element.

A chemical property of an element is a property of an element that can only be observed or measure when the chemical property of the element is altered or changed.

Based on this;
The boiling point of bromine is a physical property of bromine.
The high reactivity of bromine with many elements is a chemical property of bromine.

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