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vagabundo [1.1K]
3 years ago
10

Throughout the reflection, make sure you have a copy of the Student Guide and your data tables. Use the drop-

Chemistry
2 answers:
zalisa [80]3 years ago
5 0

Answer: 1. Mass and type of solution

2. Type of material

3. Temperature

Anestetic [448]3 years ago
3 0

Answer:

1 the physical properties is correct                    2.the pH of the solution

Explanation:

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What should you do if you need to determine the odor of a chemical or a solution?
Cerrena [4.2K]

Answer:

Explanation:

When you are in the laboratory and take a direct sniff of the chemicals you are using, you run the risk of damaging your mucous membranes or your lungs. When it is necessary to smell chemicals in the lab, the proper technique is to cup your hand above the container and waft the air toward your face.

3 0
3 years ago
Food contains chemical potential energy that the body uses. How do you think that the body gains this energy
defon
By digesting the food
4 0
3 years ago
2.
katovenus [111]

Answer:

A. 6atm

Explanation:

Using pressure law equation:

P1/T1 = P2/T2

Where;

P1 = initial pressure (atm)

T1 = initial temperature (K)

P2 = final pressure (atm)

T2 = final temperature (K)

According to this question;

P1 = 3 atm

P2 = ?

T1 = 120K

T2 = 240K

Using P1/T1 = P2/T2

3/120 = P2/240

Cross multiply

240 × 3 = P2 × 120

720 = 120P2

P2 = 720/120

P2 = 6atm

4 0
3 years ago
How many molecules in 9.18 moles of C11H12O22
Setler [38]

Answer:

55.3 × 10²³ molecules

Explanation:

Given data:

Number of moles of C₁₁H₁₂O₂₂ = 9.18 mol

Number of molecules = ?

Solution:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.022 × 10²³ is called Avogadro number.

For example,

18 g of water = 1 mole = 6.022 × 10²³ molecules of water

For given data:

9.18 mol × 6.022 × 10²³ molecules /1 mol

55.3 × 10²³ molecules

5 0
3 years ago
Which of the listed properties is the same for the elements beryllium (Be), magnesium (Mg), and calcium (Ca)?
Setler79 [48]
Answer is valence electron, they all have total of 2 valence electron.
remember group number = valence electron
7 0
3 years ago
Read 2 more answers
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