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Juliette [100K]
3 years ago
10

What is one important step to complete before starting a laboratory experiment?

Chemistry
2 answers:
gtnhenbr [62]3 years ago
6 0

Answer:

ask the teacher

Explanation:

took the test got a 90 i got something wrong but it was a hard question-

Nimfa-mama [501]3 years ago
3 0

Answer:

Ask the teacher

Explanation:

Ask if you have to clean up or if you are not prepared for an experiment

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What is the mass of an object that has a density of 0.500 g/cm3 and a volume of 5.00 mL?
attashe74 [19]

Answer:

<h2>The answer is 2.5 g</h2>

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

<h3>mass = Density × volume</h3>

From the question

density = 0.5 g/cm³

1 mL = 1 cm³

5 mL = 5 cm³

volume = 5 cm³

The mass is

mass = 0.5 × 5

We have the final answer as

<h3>2.5 g</h3>

Hope this helps you

4 0
2 years ago
Which of the following best describes subduction?
siniylev [52]

Answer:

A more dense plate going underneath a less dense plate.

5 0
2 years ago
The process invented in 1864 to reduce the amount of bacteria in liquids and foods by heating them to high temperatures is calle
dlinn [17]
 The key is a process called <span>pasteurization</span>
5 0
3 years ago
A roller coaster is accelerating at 10m/s² before it comes to an abrupt stop at the end of the ride. The mass of the roller coas
alexgriva [62]

Answer:

<h2>9000 N</h2>

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 900 × 10

We have the final answer as

<h3>9000 N</h3>

Hope this helps you

8 0
3 years ago
Alkanes and alkenes differ in that alkene molecules contain at least one:
Zarrin [17]

Answer:

Double bond

Explanation:

an alkene is a unsaturated hydrocarbon which means that it contain at least one double bond

4 0
2 years ago
Read 2 more answers
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