Chemical change is a process where a current substance changes or is made into a new type of substance<span>. Unlike the physical change, which is reversible. Chemical change stays into a its new form. Take for instance these -physical change- examples, making ice cubes. The process involves solidification or freezing where the water becomes ice or solid but when it melts back to its original or typical form with respect to temperature, it’s still water. When the paper is cut into pieces it isn’t burned or exposed to a stimuli that can trigger immediate change in its composition. It’s still the same. On the contrary, baking a cake involves these different compositions or substances –flour, egg, yeast and etc. that is baked to a cake, a newly formed unified substance of all the included ingredients. </span>
<span>The primary psychosocial milestone of childhood is the positive development of self-concept. This usually begins at 18 months, but continues throughout childhood. Self-concept is simply how one views oneself and one's abilities.</span>
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No.
Explanation:
Cardiac is a type of involuntary muscles.
Muscles like skeletal muscle, are voluntary. Examples are: Iliac, gluteus, abductor.
Answer:
Masa de las moléculas que se difunden: las moléculas más pesadas se mueven más lentamente; por lo tanto, se difunden más lentamente. Lo contrario es cierto para las moléculas más ligeras. Temperatura: Las temperaturas más altas aumentan la energía y por lo tanto el movimiento de las moléculas, aumentando la velocidad de difusión.
Explanation:
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Answer:
Scientists use observation to collect and record data, which enables them to construct and then test hypotheses and theories.
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