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Nikolay [14]
3 years ago
9

The most common form if matter in the universe is____?

Chemistry
1 answer:
Rashid [163]3 years ago
7 0

I am almost positive that the answer is: Plasmas. Let me know if im right or not please!! :)

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Sodium is a compound<br> O True<br> or<br> O False
MA_775_DIABLO [31]

Answer:

i think false.

Explanation:

tell me if this is wrong

6 0
3 years ago
Read 2 more answers
PLEASE ASAP
Kitty [74]
Choice c - eats away other materials
7 0
3 years ago
Which statements describe codominance? Select three options.
solong [7]

  • Traits are neither dominant nor recessive.

  • Both alleles, one from each parent, are expressed in offspring.

  • Codominance involves the interaction of two alleles.

4 0
3 years ago
Read 2 more answers
Heating a carboxylic acid with a primary amine forms water along with what organic product? OA) A secondary amide OB) A primary
Bezzdna [24]

Answer:

A) secondary amide

Explanation:

When carboxylic acid reacts with a primary amine, a condensation reaction takes place with the elimination of a water molecule .

For example, ethanol reacts with methylamine which is a primary amine gives N-Methylacetamide and a water molecule as:

CH_3COOH+NH_2CH_3\rightarrow CH_3-CONH-CH_3+H_2O

The bond formed which is

  O

   ||

-- C  ---NH ---

is known as secondary amide group as only one hydrogen is attached to nitrogen atom in the amide bond.

5 0
3 years ago
In the reaction K2CrO4 (aq) + PbCl2 (aq) 2KCl (aq) + PbCrO4(s), how many grams of PbCrO4 will precipitate out from the reaction
pashok25 [27]
Reaction equation:
K₂CrO₄(aq) + PbCl₂(aq) → 2KCl(aq) + PbCrO₄(s)

Concentration = moles / Liter
moles(K₂CrO₄) = 3 x 0.025
= 0.075

By the equation, we see that the molar ratio of
K₂CrO₄ : PbCrO₄ is
1 : 1
moles(PbCrO₄) = 0.075

mass = moles x Mr
mass = 0.075 x (207 + 52 + 16 x 4)

mass = 24.2 grams
7 0
3 years ago
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