3 years ago

What is the mass of an object with a volume of 2.0 mL and a density of 28.8 g/mL?

Chemistry

1 answer:

Nadusha1986 [10]3 years ago

6 0

Answer:

your answer is really 308ml

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What is the composition of tungsten?

Setler79 [48]

Answer:

90% to 97% pure tungsten in a matrix of nickel and copper or nickel and iron.

Explanation:

Heavy metal tungsten alloys are 90% to 97% pure tungsten in a matrix of nickel and copper or nickel and iron. The addition of these alloying elements improves both the ductility and machinability of these alloys over non-alloyed tungsten.

7 0

2 years ago

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Which of the following are cations? Check all that apply.

Lostsunrise [7]

Answer:

barium

calcium

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Explanation:

4 0

3 years ago

One mole of acetyl chloride was mixed with one mole of dimethylamine. After the reaction is complete, what species can be found

fredd [130]

Answer:

N,N-dimethylacetamide is formed.

Explanation:

It is an example of a nucleophilic addition-elimination reaction. Here dimethylamine acts as a nucleophile.
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In the second step, removal of Cl atoms occurs.
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Full reaction mechanism has been shown below.

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3 years ago

Consider the equilibrium: HCOOH(aq) + F-(aq) <----> HCOO-(aq) + HF (aq) Given that the Ka of HCOOH = 1.8 x 10-4 and the Ka

Aleks [24]

Hey there!:

K = Ka * Kb / Kw

Ka = 1.8*10⁻⁴

Kb = 10⁻¹⁴ / 6.8*10⁻⁴

K = 1.8*10⁻⁴ * ( 10⁻¹⁴/ 6.8*10⁻⁴ ) * ( 1 / 10⁻¹⁴ )

K = = 1.8 / 6.8

K = 0.265

Answer A

Therefore:

K is less than on the forward reaction is not favorable .

Hope That helps!

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3 years ago

Which <br> molecule has the same shape and hybridization as methane

Korvikt [17]

Hi, the answer is <span>CF2Cl2 :)</span>

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3 years ago