3 years ago

Identify the items in the list below that are examples of matter. Check all that apply

Chemistry

2 answers:

Illusion [34]3 years ago

6 1

Answer:

what are the items that have been listed?

MArishka [77]3 years ago

3 1

Answer:

what are the items that have been listed?

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In which step of the four-stroke engine cycle does the spark plug initiate the combustion reaction?

Dominik [7]

ANSWER
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EXPLANATION

At the power stroke stage, the piston is forced to move down by the expanding gases as both intake valve and exhaust valve are closed.
A spark from the spark plug contributes to ignition of the compressed fuel air mixture to released energy to perform work.

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Write the balanced chemical equation where liquid decane burns in oxygen gas to form carbon dioxide gas and water vapor. Use the

Allushta [10]

Answer:

$2C_{10} H_{22(l)} + 31O2(g)--> 20CO_{2(g)} + 22H_{2}O_{(g)}$

Explanation:

$2C_{10} H_{22(g)} + 31O2(g)--> 20CO_{2(g)} + 22H_{2}O_{(g)}$

From the question, one can work out which states of matter to assign to which species. The trick with organic equations of this nature is to try to balance everything but oxygen first. Make sure you balance oxygen last because it is the easiest to balance.

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Where are electrons found in the atom?

RoseWind [281]

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