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sergey [27]
3 years ago
15

Which element is placed in the same period as ruthenium but has a higher atomic number than it? bismuth osmium silver zirconium

Chemistry
2 answers:
Nat2105 [25]3 years ago
3 0

The element that is placed in the same period as ruthenium but which has a higher atomic number than it is SILVER.

In the periodic table, a period refers to an horizontal row of elements. All the element in a particular period always have the same number of atomic orbitals. Ruthenium and silver are in the same period and they have the same number of atomic orbital but have different atomic numbers. The atomic number of silver [47] is higher than that of ruthenium [44] because silver has higher number of protons more than ruthenium. Remember that, the number of proton of an element determines its atomic number and the elements in the periodic table are arranged based on increased atomic number.

SVEN [57.7K]3 years ago
3 0
The answer is silver because its in the same transition metal placement and row as the ruthenium metal
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What's the IUPAC name pf this compound? CH3-CH-CH2-CH-CHO | | CH3 CL
Svetradugi [14.3K]

Answer:

2-chloro-4-methylpentanal.

Explanation:

Hello there!

In this case, according to the chemical compound:

CH3-CH-CH2-CH-CHO

          |              |

        CH3        Cl

We can see the main functional group is an starting carbonyl, which means this is an aldehyde. Moreover, we can see a Cl-substituent on the second carbon and a methyl substituent on the fourth carbon. Therefore, the IUPAC name turns out: 2-chloro-4-methylpentanal.

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8 0
3 years ago
Give three examples of energy being changed to other forms.
dimaraw [331]
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6 0
3 years ago
Consider the potassium permanganate reaction again.
Rus_ich [418]
Hey there !

Mole ratio :

<span>2 KMnO4 + 16 HCl → 2 KCl + 2 MnCl2 + 8 H2O + 5 Cl2

2 moles KMnO4 ----------------- 8 moles H2O
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</span>The option that was given is wrong , <span>You're right.</span>
6 0
3 years ago
Read 2 more answers
A closed container holds 2.0 moles of CO2 gas at STP. How many moles of oxygen can be placed in a container of the same size at
PilotLPTM [1.2K]

Answer: 2 moles

Explanation:

STP is Standard Temperature and Pressure. That means the pressure is 1.00 atm and the temperature is 273K. Since the oxygen is placed in the same container, we can use Ideal Gas Law to figure out what container the CO₂ used.

Ideal Gas Law: PV=nRT

P=1.00 atm

n=moles

R=0.08206 Latm/Kmol

T=273K

CO₂

V=\frac{nRT}{P}

V=\frac{(2.0 mol)(0.08206Latm/Kmol)(273K)}{1.00atm}

V=44.8L

Since we know that CO₂ has a 44.8 L container, we can use that to find the moles of oxygen.

n=\frac{PV}{RT}

n=\frac{(1.00atm)(44.8L)}{(0.08206Latm/Kmol)(273K)}

n=1.99=2mol

There are 2 mol of oxygen.

5 0
3 years ago
Arsenic produces a blue flame when heated. Calcium produces an orange-red flame. Which of these best explains why this differenc
MrMuchimi

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6 0
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