2 years ago

Indicate the correct number of sig figs

Chemistry

1 answer:

Dimas [21]2 years ago

3 0

Explanation:

The answer to questions are

A) 4

B) 3

C) 5

D) 3

E) 3

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3. What is the mass of an object with a volume of 4 L and a density of 1.25 g/mL?

ch4aika [34]

Answer:

5000g

Explanation:

mass= density × volume

Since the unit of density here is g/mL, we need to convert the volume to mL.

1L= 1000mL

4L= 4 ×1000 = 4000 mL

Mass of object

= 1.25 ×4000

= 5000g

3 0

3 years ago

Read 2 more answers

Draw the structural formula of the major product of the reaction of (S)-2,2,3-trimethyloxirane with MeOH, H . Use the wedge/hash

Katarina [22]

Answer:

(S)-3-methoxy-3-methylbutan-2-ol

Explanation:

In this case, we have an epoxide opening in acid medium. The first step then is the protonation of the oxygen. Then the epoxide is broken to generate the most stable carbocation. The nucleophile ( $CH_3OH$ ) will attack the carbocation generating a new bond. Finally, the oxygen is deprotonated to obtain an ether functional group and we will obtain the molecule (S)-3-methoxy-3-methylbutan-2-ol.

See figure 1

I hope it helps!

8 0

3 years ago

In order to determine if 2 atoms are cooper what must be the same for each

galina1969 [7]

-number of electrons
-atom size
-charge of the atom
-number of protons

4 0

2 years ago

And non-flammable gases Noble gases are that have low chemical

gtnhenbr [62]

Answer:

Noble gases are odorless, colorless, and nonflammable gases that have low chemical reactivity.
The full valence electron shells of these atoms make noble gases extremely stable.
& they are unlikely to form chemical bonds because they have little tendency to gain or lose

electrons.

5 0

2 years ago

Semi-conductors have properties of both metals and non metals.which are two examples of metalloids

balu736 [363]

The six metalloids are boron, silicon, germanium, arsenic, antimony, and tellerium.

7 0

2 years ago