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dexar [7]
2 years ago
8

How should students prepare to use chemicals in the lab?.

Chemistry
1 answer:
Serggg [28]2 years ago
6 0

Answer:

Become familiar with the chemicals to be used, including exposure or spill hazards.

Locate the spill kits and understand how they are used.

Explanation:

Hope this helped! :)

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An experiment was performed to determine how the amount of coffee grounds could affect the taste of coffee.The same kind of coff
gavmur [86]
What we want to measure is the taste of coffee.

The following were kept constant during the experimental investigation:
The type of coffee,
The type of percolator,
The same amount and type of water,
The same perking time,
The same electrical sources.

Because these items were kept constant, they are not expected to influence the outcome of the experimental investigation.

Define:
y = the metric used to measure the taste of coffee
x = amount of coffee grounds used for the taste experiment.

Therefore the relationship that arises from the experiment is
y = y(x).

Because x is controllable and is varied during the experiment, it is the independent variable.
Because the measured value of y depends on x, therefore y is the dependent variable.

Answer:
The taste of coffee is the dependent variable.
The amount of coffee grounds used is the independent variable.

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3 years ago
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xz_007 [3.2K]

Answer: A-2 energy levels

Explanation:

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3 years ago
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zhuklara [117]

Answer: the answer is D heat and pressure

Explanation: I just took the test.

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3 years ago
In the ground state, which atom has a completely filled valence electron shell?(1) C (2) V (3) Ne (4)Sb
AVprozaik [17]
The answer is (3)Ne. Usually, the elements belongs to group 18 all have completely filled valence electron shell. Among the four elements carbon, vanadium, neon and antimony, only neon belongs to group 18.
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Hydrogen containing all compounds are not acts as acids. Why?
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Answer:

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The compound that can't split to H+ doesn't act as acid.

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