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TEKS Grade 6 Science - 6.5 Diagnostic Elements and Compound
Quiz by Grade 6 Science - Texas Education Agency
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​The chemical equation shown represents a reaction that produces fuel for certain cars.Â
CO
H2O
H2
CO2
​In the chemical reaction shown , the products are best classified as —
one element and one compound
two compounds
two compounds and one element
two elements
The chemical equation shown represents a reaction that produces fuel for certain cars.Â
In the chemical reaction shown , the products are best classified as —
Some students are using samples of different substances for a lab investigation. They plan to observe the physical properties of each substance and record their observations in a table like the one shown. Which of the substances observed are elements?
Which is the BEST example of a pure substance?
The atmosphere of Earth is comprised mostly of oxygen and -
Organic products are generated from living matter, so therefore these products would be high _________________ content
The data in the table represents the composition of elements in living matter. Which combination of element symbols best relates to the above elements?
Which of the following is NOT evidence that a new substance is forming in an experiment?
What conclusion can be made about the four investigations in the table?
A student uses a strip of Zinc (silvery metal) and combines it with hydroelectric acid inside a beaker. As the substances come into contact with one another, the following happens: bubbles form. Which portion of the chemical reaction shows evidence a new substance has formed?