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inna [77]
3 years ago
14

Which of the following reactions involves two or more substances combining to form a new compound?

Chemistry
1 answer:
kumpel [21]3 years ago
6 0

Answer:

combination (synthesis) reaction

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Is my answer correct?
ioda
Yes you are right .. X is undergoing a change from solid to gas at point E
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What is the uncertainty of a 10ml pipet?​
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3 years ago
How many isomers are there with the formula c3h4? include both structural and geometric isomers?
sleet_krkn [62]
There are three possible Isomers for Molecular Formula C₃H₄. Isomers are;

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Structures of all three isomers are given below.

There are no geometrical isomers for given molecular formula because geometrical isomers are formed in compounds containing double bond with at least two bulky groups at both sp² hybridized carbons. In given isomers, propyne does not contain any double bond, Propa-1,2-diene is symmetrical in nature while cyclopropene is a 3-membered ring. And for cycloalkenes there must be other groups attached to ring other than Hydrogen atom, hence cyclopropene does not contain any other group, so it can not show geometrical isomerism.

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3 years ago
When does the given chemical system reach dynamic equilibrium?
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Once it becomes balanced. 
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What are the components needed in order for an experiment to be valid? Identify these components in the following experiment: A
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He is missing a (real) control. Growing two plants without plant food at all doesn't count; in order to see if the new food is better, he must also grow plants with the original food in order to compare it. 

He does have an independent variable. This is the type of plant food. It's independent because he has direct control over it.

He needs to give plants the same conditions besides food: same water (amount), same light exposure, same temperature, etc.

He needs to choose a quantitative way to measure how much the plants grew, like mass or length.
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