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Alexxx [7]
4 years ago
5

Which term is defined as “anything that has mass and occupies space”? a -compound b - element c - substance d - matter

Chemistry
1 answer:
Dima020 [189]4 years ago
4 0
The answer is matter
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All amino acids that are found in proteins, except for proline, contain a(n); Group of answer choices amino group carbonyl group
Jobisdone [24]

Answer:

amino group

Explanation:

There are twenty (20) amino acids in nature. Generally, each amino acid is structurally made up of a central carbon atom called alpha carbon attached to a hydrogen, carboxylic acid group (-COOH) and an amine group (-NH2). However, one particular amino acid called PROLINE posseses an exception to this.

Proline, which is the only cyclic amino acid, is also the only amino acid that forms a secondary amine group i.e. loss of hydrogen atoms in its amine group when in a protein structure. This means that when in a protein, PROLINE does not have an AMINE GROUP.

7 0
3 years ago
How scientific notation makes it easier to work with very large or very small numbers.
Elan Coil [88]

Say that you have 100³

instead of writing and solving 100x100x100 three times to solve it, you can just write 100³

the exponents in scientific notation make the whole process easier.

8 0
3 years ago
AgNO3 + NaCl mc017-1.jpg NaNO3 + AgCl
lina2011 [118]

The balanced reaction is:

 AgNO3 + NaCl = NaNO3 + AgCl

 <span>We are given the amount of silver nitrate to react with sodium chloride. This will be our starting point.</span>

 15.0 mol AgNO3 (1 mol AgCl / 1 mol AgNO3 ) =15.0 mol AgCl


The amount of moles produced is the same with the amount of the given reactant since they only one is to one ratio.

8 0
4 years ago
Read 2 more answers
PLEASE HELP FASTTT!!!!
Umnica [9.8K]
I did this when I was younger
4 0
3 years ago
If 185 g of KBr are dissolved in 1.2 kg of water, what would be the expected change in boiling point? The boiling point constant
Fudgin [204]

Answer:

ΔTb = 0.66 C

Explanation:

Given

Mass of KBr = 185 g

Mass of water = 1.2 kg

Kb = 0.51 C/m

Explanation:

The change in boiling point (ΔTb) is given by the product of molality (m) of the solution and the boiling point constant (Kb)

\Delta T_{b}= K_{b}* m

Molality = \frac{moles\ KBr}{Kg\ water} \\\\moles KBr = \frac{mass\ KBr}{Mol.wt\ KBr} = \frac{185}{119} = 1.555\\\\Molality (m) = \frac{1.555 }{1.2} =1.296 m\\

[tex]\Delta T_{b}= 0.51 C/m * 1.296 m = 0.66 C[\tex]

6 0
4 years ago
Read 2 more answers
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