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ella [17]
4 years ago
14

The atomic number of an element is equal to the number of _____ contained in one atom of that element.

Chemistry
2 answers:
vlabodo [156]4 years ago
8 0

protons..............................

olasank [31]4 years ago
4 0
Proton number


Nucleon number is the ...protons + neutrons in the nucleus
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a ______ consumer is a heterotroph that directly eats an autotroph. A primary B. Quaterany C tertiary D secondary
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Primary consumer just remember the “primary” (first) consumer so the one that eats a heterotroph
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3 years ago
Which statement describes a reaction at 298 K if AH = 31 kJ/mol, AS = 0.093
melisa1 [442]

Answer: (D) it is not spontaneous.

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3 years ago
I need help answering numbers 8-10
gizmo_the_mogwai [7]

Answer:

The correct answer:

8)- e)2, 2 dymetilpropane

9)-  b) 2-chloropropane

10)-  b) hydroxyl

See the explanation below, please.

Explanation:

In the cases of exercises 8 and 9:

Correspond to alkanes, having 3 carbons are named with the prefix prop and suffix anus. In 8 it has 2, 2 methyl groups in carbon and 9 in a 2-carbon chlorine group.

In the case of 10, it corresponds to a 3-carbon alcohol: suffix prop, and prefix ol: 2- propanol; in group 2 it has an OH group corresponding to alcohol (hydroxyl).

8 0
3 years ago
An unused flashbulb contains magnesium and oxygen. After use, the contents are changed to magnesium oxide but the total mass doe
harkovskaia [24]

Answer: Law of conservation of mass explains these observations.

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products formed must be equal to the mass of reactants taken.

In order to get the same mass on both sides, the atoms of each element must be balanced on both sides of the chemical equation.

2Mg+O_2\rightarrow 2MgO

Mass of reactants= mass of Mg+ mass of O_2  = 48 g + 32 g = 80 g

Mass of products = mass of MgO = 80 g

Thus mass of reactants is equal to mass of products, thus law of conservation of mass is obeyed.

7 0
3 years ago
P4+O2=P2O3<br> What’s the balance of this equation?
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6 0
3 years ago
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