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8090 [49]
3 years ago
13

What part of the atom is represented by the letter Z?

Chemistry
1 answer:
pashok25 [27]3 years ago
4 0

Answer:

The proton of the atom

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What is smaller than atoms and bigger than molecule
AnnyKZ [126]
Atoms are smaller than molecules, and they are also the smallest building blocks of matter. Atoms make up molecules when two or more atoms bond.
6 0
3 years ago
How do I find the protons neutrons and electrons for and Oxygen Ion with an oxidation charge of -2
Contact [7]

Answer:

no. of protons=8

no. of neutrons=8

no. of electrons=10

Explanation:

4 0
3 years ago
Convert 296 degrees Celsius to Kelvin.<br> A. 23 K<br> B. 552 K<br> C. 569 K<br> D. 550 K
katovenus [111]

Answer:

option c) 552 K is correct

Explanation:

we know that

0° C +273= 273 K

so

296° C+273=569 K

7 0
2 years ago
Read 2 more answers
classify the materials based on their composition rock, clear liquids, peppercoms, concrete, salt, oxygen, birdseed, plant
USPshnik [31]

Answer:

1. rocks are composed of grains of minerals which are formed by the longest natural chemical reaction

2. clear liquids are mainly sugar and water . they are transparent food and mainly are beverages , ice , grains etc stuff

3. concrete is made up of basically three components . water , aggregate ( rock , sand and gravel ) and portland cement .

4. salt consist of NaCl it is made up of sodium and chloride it is also called rock or  halite salt

Explanation:

6 0
3 years ago
In the citric acid cycle, malate is dehydrogenated to oxaloacetate in a highly endergonic reaction with a ΔG’o of +30 kJ mol-1:
Doss [256]

Answer :  The value of K_{eq} of this reaction is, 5.51\times 10^{-6}

At equilibrium, [L-malate] > [oxaloacetate]

Explanation :

The relation between the equilibrium constant and standard Gibbs free energy is:

\Delta G^o=-RT\times \ln K_{eq}

where,

\Delta G^o = standard Gibbs free energy  = +30 kJ/mol = +30000 J/mol

R = gas constant = 8.314 J/K.mol

T = temperature = 25^oC=273+25=298K

K_{eq}  = equilibrium constant  = ?

The given reaction is:

\text{L-malate}+NAD^+\rightleftharpoons \text{oxaloacetate}+NADH+H^+

\Delta G^o=-RT\times \ln K_{eq}

+30000J/mol=-(8.314J/K.mol)\times (298K)\times \ln K_{eq}

K_{eq}=5.51\times 10^{-6}

Therefore, the value of K_{eq} of this reaction is, 5.51\times 10^{-6}

As, the value of K_{eq} < 1 that means the reaction mixture contains reactants.

At equilibrium, [L-malate] > [oxaloacetate]

7 0
4 years ago
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