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NNADVOKAT [17]
3 years ago
13

Which of the following is the SI unit used to measure temperature? a. kilogram b. liter c. meter d. Kelvin Please select the bes

t answer from the choices provided A B C D
Chemistry
2 answers:
monitta3 years ago
8 0

<u>Answer:</u> The correct answer is Option d.

<u>Explanation:</u>

Temperature is defined as measure of warmth and coldness of a substance in reference to some standard value. It is expressed in Kelvins.

Kilogram is the S.I. uni of Mass.

Liter is the S.I. unit of Volume.

Meter is the S.I. unit of Length.

Temperature can be expressed in degree Celsius and degree Fahrenheit.

Hence, the correct answer is Option d.

liq [111]3 years ago
7 0

Answer:

D

Explanation:

Temperature is defined as measure of warmth and coldness of a substance in reference to some standard value. It is expressed in Kelvins.

Kilogram is the S.I. uni of Mass.

Liter is the S.I. unit of Volume.

Meter is the S.I. unit of Length.

Temperature can be expressed in degree Celsius and degree Fahrenheit.

Hence, the correct answer is Option d.

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Answer:

                 The combination of oxygen with other substances to produce new chemical products is called <u>Oxidation</u>.

Explanation:

                     Oxidation reactions are defined as,

In terms of Inorganic chemistry:

                 (i) <u>Removal of Electrons: </u>

                            Example:  Mg  →  Mg²⁺  +  2 e⁻

                (ii) <u>Addition of Oxygen:</u>

                            Example:  2 Mg  + O₂  →  2 MgO

In terms of Organic chemistry:

                (i) <u>Addition of Electrons: </u>

                            Example:  Cl₂  +  2 e⁻   →   2 Cl⁻

                (ii) <u>Addition of Hydrogen:</u>

                            Example:  H₂CCH₂  +  H₂    →   H₃CCH₃

4 0
3 years ago
Which of these properties of an unknown liquid can be found using a beaker, a hot plate, and a temperature probe?
alexandr1967 [171]

I think it is H. Boiling Point

7 0
2 years ago
Read 2 more answers
How many moles of dipyrithione contain 8.2 x 10^24 atoms of N
Pani-rosa [81]
Dipyrithione is a chemical with formula, C₁₀H₈N₂O₂S₂. This means that each molecule of the substance has two (2) atoms of nitrogen. By using the dimensional analysis and Avogadro's number, equal to 6.022 x 10²³, we calculate for the answer as shown below.

    n = (8.2 x 10²⁴ atoms N)(1 molecule dipyrithione/ 2 atoms of N)(1 mole dipyrithione/ 6.022 x 10²³ molecules dipyrithione)

Simplifying,
  n = 6.8 moles dipyrithione

<em>ANSWER: 6.8 moles</em>
4 0
3 years ago
PLEASE HELP IM REALLY STRESSED OUT AND I JUST NEED SOMEONE TO DO THIS FOR ME! IK ITS ALOT SORRY! In this task, you'll determine
Burka [1]

Answer:

The reaction is endothermic

Part A: Yes because there is an immediate reaction of bubbling vigorously.

Part B: It releases energy because when the compounds are added together they are immediately releasing it by bubbling and turning cold.

Part C: Yes because the liquids inside when combined give off coldness that makes the liquid temperature decrease to use this chemical reaction could definitely be used to keep something cold

Explanation:

7 0
3 years ago
Now, examine the structures of benzhydrol and fluorene. Both compounds contain the same number of carbons but have very differen
zubka84 [21]

Answer:

The OH group

Explanation:

Benzhydrol contains OH hydroxyl group in its molecule while fluorene does not. At first glance, one would think that OH, which contributes to hydrogen bonding would causes melting point of benzhydrol to be higher than fluorene. <em>However, </em>the structure of benzhydrol, which is 2 benzene rings connected to center hydroxyl carbon (PhCOHPh), allows for each benzene rings in benzhydrol to rotate until both rings are perpendicular to minimize repulsive force. This prevents the molecule from stacking on each other due to its non flat shape, and thus, lowering its melting point in contrast to flat fluorene molecule.

4 0
3 years ago
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