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3 years ago

Which are characteristics of scientific questions? Check all that apply.

Chemistry

2 answers:

galina1969 [7]3 years ago

4 0

Answer:

asking about subjective matters

possibly leading to a testable hypothesis

addressing a gap in knowledge

I got soo confused about that last part. I didn't know if that was an option or something you needed to be answered.

Descriptive investigations are not repeatable because they are based only on observations made at a single point in time. The results may vary at a different time. In addition, descriptive investigations do not contain variables that may indicate cause-and-effect relationships.

Leona [35]3 years ago

4 0

Answer:

A C D

Explanation:

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What suffix do the halogen group use

sesenic [268]

Answer: That is, the suffix of the compound is unchanged by the presence of the halogen, and the halogen is included as a prefix in the name. In acyl halides, the suffix -oyl chloride is appended to the name. For example, CH3CH2COCl is called propanoyl chloride.

Explanation:

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3 years ago

Is the sky a solid,liquid,or gas

DochEvi [55]

The air in the sky and the clouds are gas, however some things in the sky [such as the sun/moon] are solid.
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3 years ago

Umnica [9.8K]

Answer: Volume im pretty sure

3 0

3 years ago

Read 2 more answers

A compound consists of atoms of two or more elements combined in a _______.

Mice21 [21]

Answer: small, whole-number ratio

Explanation: 1) A compound consists of atoms of two or more elements combined in a small, whole-number ratio. In a given compound, the numbers of atoms of each of its elements are always present in the same ratio

3 0

3 years ago

Pls help me !!!! Is for chemistry

Sphinxa [80]

Answer:

Explanation:

1) Molarity of the solution is (0.50/0.75)x1 = 0.66666 Mol/L

2) Molar mass of NaCl is 23+35 = 58g

Molarity = (0.5/58)/0.075 = 0.115 Mol/L

3) Molar mass of $Li_{2}SO_{4}$ = 7x2 + 32 + 16x2 = 78g

Molarity = (734/78)/0.875 = 10.754 Mol/L

5) Molar mass of $Pb(C_{2}H_{3}O_{2})_{4}$

= 207.2 + ((12x2) + (1x3) + (16x2))x4

= 207.2 + (24+3+32)x4 = 443.2g

Molarity = (0.0672/443.2)/0.1335 = 0.001135 Mol/L

6) Both are the same.

Solution 1 Molarity = 1.0/1.0 = 1 Mol/L

Solution 2 Molarity = 1.0/1.0 = 1 Mol/L

Molarities of the solutions are the same.

7 0

3 years ago