2 years ago

What does the term chemistry mean?

Chemistry

1 answer:

Elenna [48]2 years ago

7 0

the branch of science that deals with the identification of the substances of which matter is composed

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1 When a chemical reaction occurs A. the substances involved do not mix together and maintain their original properties. B. the

nlexa [21]

Answer:

Explanation:

The proberties of the substances that are produced are different from the properties of the original substances.

6 0

2 years ago

Silver was precipitated and collected by filtration. The experiment yielded .077g of silver after dying. The predicted yield was

PSYCHO15rus [73]

Answer:

Precentage error = 7.23%

Explanation:

The precentage error formula is the useful method for determining precision of your experimental result

It can be calculated using :

$percent\ error = |\frac{experimental\ value-predicted\ value} {predicted\ value}|\times 100$

$percent\ error = |\frac{0.077\ -0.083} {0.083}|\times 100$

So we get percentage error = 7.23%

Precision means how close the experimental value to the true value or theoretical value

If percentage error is large it means experimental results are deviated and there is need to check mistakes,imprecision in the experiment

If the percentage error is zero it means the experiment is perfectly done without inaccuracy

4 0

2 years ago

What is the relationship between a compound and the elements it is made from?

dalvyx [7]

<span>The compound may have properties that are very different from those of the elements it is composed from.</span>

6 0

2 years ago

CHEMISTRY PLEASE HELP ILL GIVE U 20

dybincka [34]

The answer is c hope it helps

5 0

3 years ago

Equation below is used to determine the heat flux for convection

OLEGan [10]

Q=hc A (Ts-Ta)
q = heat transfered per unit time
A= heat transfer area of the surface
hc= convective heat transfer coefficient of the process
Ts= temperature of the surface
Ta= temperature of the air

7 0

3 years ago