1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kicyunya [14]
4 years ago
13

What trend in metallic reactivity is found going left to right on periodic table of elements

Chemistry
1 answer:
BigorU [14]4 years ago
7 0

Metallic character decreases as you move across a period in the periodic table from left to right. This occurs as atoms more readily accept electrons to fill a valence shell than lose them to remove the unfilled shell.

You might be interested in
When added to a sealed flask and heated, 6.0g of carbon and 16.0 g of oxygen react to form22.0 g of carbon dioxide. how much car
zloy xaker [14]
6 g C/22 g CO2 = 24 g C/X
X=88.0 g
4 0
3 years ago
Read 2 more answers
When 1.47 g of an unknown non-electrolyte is dissolved in 50.0 g of carbon tetrachloride, the freezing point decreased by 7.03 d
CaHeK987 [17]

Answer:

124.6 g/mol will be the molar mass for the unknown non-electrolyte

Explanation:

Freezing point depression →  ΔT = Kf . m

ΔT indicates the temperature variation:

Freezing point of pure solvent - Freezing point of solution

Kf is the cryoscopic constant → 29.8 K/m

Generally the unit is °C/m but we have to type the ΔT by K so let's replace the data given → 7.03 K = 29.8 K/m . m

m = 7.03 K / 29.8 m/K = 0.236 mol/kg

m means molality, the moles of solute in 1 kg of solvent. If we want to determine the moles of solute we do this operation:

molality . kg, so we may convert the mass of solvent from g to kg.

50 g . 1kg/1000g = 0.05 kg

0.236 mol/kg . 0.05 kg = 0.0118 moles

Molar mass → g/mol → So 1.47 g / 0.0118 mol = 124.6 g/mol

3 0
4 years ago
The air temperature in a sealed, insulated box.. 20°C An ice cube at O'C is
Elza [17]

Answer:

Melting is endothermic, so the air temperature decreases.

Explanation:

Hello there!

In this case, according to the given statement, it is possible to infer that the ice is melt because energy is applied to the ice and thereafter its temperature increases; this is possible because the joined particles of a solid substance need energy to undergo such a separation that they become more far away to each other and therefore transcend to the liquid phase due to the new molecules arrangement. Thus, the answer is Melting is endothermic, so the air temperature decreases because as the ice heats up, the air cools down as it gives it energy to the ice.

Best regards!

8 0
3 years ago
Which planet is terrestrial?<br> Jupiter<br> Mars<br> O Saturn<br> Uranus
Zolol [24]

Answer: Mars

Explanation: The planet of Mars is the only planet of all that is terrestrial. Jupiter, Saturn and Neptune are all Jovian Planets. The answer to the question is Mars. Hope this answer helps you!

4 0
3 years ago
Read 2 more answers
Is "Hypooxide" even a thing???
bulgar [2K]

Answer:

yes it is

Explanation:

4 0
4 years ago
Other questions:
  • How many iron atoms are in 5.4 mol of Fe203?
    8·1 answer
  • What is the broad name for movement of materials across a membrane
    7·1 answer
  • 7.0
    8·1 answer
  • Dacă intr-o scoica se introduc câteva picături de acid se observa apariția efervescenței. Scoica conține carbonat de calciu.Daca
    8·1 answer
  • A package contains 1.33 lb of ground round. If it contains 29% fat, how many grams of fat are in the ground round? The book is s
    15·1 answer
  • What type of atoms/elements form Ionic bonds and which ones form covalent?
    9·1 answer
  • a weight loss supplement i advertised in several popular beauty and and fashion magazines the advertisements claim that the supp
    9·1 answer
  • Explain how you could calculate the acceleration of an object
    15·1 answer
  • Calcular la cantidad de NaOH necesaria para preparar medio litro de disolución 2,5 N. (Dato: peso molecular del NaOH = 40 g/mol)
    9·1 answer
  • List three important character of ionic compound​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!