3 years ago

How are the number of protons and neutrons represented in a periodic table?

1 answer:

5 0

Answer:

The atomic number or proton number (symbol Z) of a chemical element is the number of protons found in the nucleus of every atom of that element. The atomic number uniquely identifies a chemical element.

Explanation:

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Art [367]

To think the answer is grasses

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2 years ago

A laboratory procedure calls for making 590.0 mL of a 1.1 M KNO3 solution. How much KNO3 in grams is needed?

AveGali [126]

590 mL = 590 cm³= 0,59 dm³

C = n/V
n = 1,1M × 0,59 dm³
n = 0,649 mol
_____________________________

M KNO₃ = 39g+14g+16g×3 = 101 g/mol

1 mole -------- 101g
0,649 --------- X
X = 101×0,649
X = 65,549g KNO₃

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3 years ago

Which of the following could be one reason why the earth is getting warmer?

prisoha [69]

I think B. The Earth is moving closer to the sun
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3 years ago

Nickel (II) oxide reacts with carbon monoxide to form nickel metal. CO(g) + NiO(s) ⇄ CO2(g) + Ni(s) Kp = 20 at 873 K If a reacti

ozzi

Answer:

Explanation:

Hello,

Based on the statement of the equilibrium law:

$Kp=\frac{P_{CO_2}^{EQ}}{P_{CO}^{EQ}}$

By increasing (doubling) the amount of carbon monoxide, the production of nickel will increase since its amount is directly proportional with its pressure, so, by adding more reactant (in this case carbon monoxide), the equilibrium is rightward shifted based on Le Châtelier's principle even when solid either reactants or products are not contemplated in the equilibrium law.

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3 years ago

Temperature is a measure of ___________

Arisa [49]

Answer:

option A is correct answer

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2 years ago

Read 2 more answers