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
antiseptic1488 [7]
2 years ago
11

Element X is in group 2, and element Y is in group 7, of the periodic table. which ions will be present in the compound formed w

hen X and Y react together?
A) X^+ and Y^-
B)X^2+ and Y^-
C)X^+ and Y^2-
D)X^2- and Y^+
Chemistry
1 answer:
12345 [234]2 years ago
8 0

Answer:

Element X has valency 2 while Y Valency 2, element Y has high tendency of gaining electrons for its stability thus the compound formed will be B

elements X is positively charged while Y will be negatively charged

You might be interested in
g A and B are both non-volatile molecular compounds. Substance A has a greater molar mass than substance B. If 50 g of substance
Doss [256]

Answer:

The correct answer is - option D.  the boiling point of solution A will be lower than the boiling point of solution B

Explanation:

Colligative properties such as a decrease in the freezing point of the solution, increase in the boiling point of substance, decrease in Lowering of vapor pressure, and other properties depend upon the number of molecules only.

In the given solution the equal amount of two solutions are mixed that is 50 grams however due to the difference in the molecular mass so the atoms present in both solution A and B will be different. It is known that the number of atoms of a substance is inversely proportional to the molecular mass of the particular substance.

As it is given that Solution B has a low molecular mass which means it has a high number of atoms that means its boiling point will be higher than solution A.

8 0
2 years ago
Scenes A and B depict changes in matter at the atomic scale:
kaheart [24]

Scene B depicts chemical change in matter at atomic change.

Composition distinguishes a chemical reaction from a physical reaction. In a chemical process, the makeup of the components changes; in a physical change, the appearance, smell, or straightforward exhibition of a sample of matter changes without changing its composition. Despite the fact that we refer to them as physical "reactions," nothing is actually changing. A change in the substance in question's elemental composition is necessary for a reaction to occur. Therefore, from now on, we will simply refer to bodily "reactions" as physical changes.

Learn more about Chemical changes here-

brainly.com/question/23693316

#SPJ4

5 0
1 year ago
PLEASE HELP IMMEDIATE WORTH 10 POINTS
Otrada [13]

Answer:

the scientific name is Angiosperms

Explanation:

please mark brainliest

8 0
3 years ago
If you'd like to live in a place that has more moderate summers and winters, it'd be best to pack your suitcases and head to ___
aliya0001 [1]
The answer is Oregon.
6 0
3 years ago
Read 2 more answers
How would you define self awareness
kondor19780726 [428]
Self-awareness is the ability to focus on yourself and how your actions, thoughts, or emotions do or don't align with your internal standards. If you're highly self-aware, you can objectively evaluate yourself, manage your emotions, align your behavior with your values, and understand correctly how others perceive you.
3 0
2 years ago
Other questions:
  • What are the 3 principles of the Kinetic molecular theory?
    12·2 answers
  • At 20 degrees celsius, how much sodium chloride could be dissolved in 2L of water
    5·1 answer
  • The energy released in the formation of a compound from its elements is always _____ the energy required to decompose that compo
    6·1 answer
  • Which boiling point is lower an why?
    8·2 answers
  • A sample of oxygen is collected over water at a total pressure of 692.2 mmHg at 17°C. The vapor pressure of water at 17°C is 14.
    10·1 answer
  • The concentration of copper(II) sulfate in one brand of soluble plant fertilizer is 0.070% by weight. If a 21.5 g sample of this
    13·1 answer
  • Giving brainliest to correct answer..<3please give answers to both
    11·1 answer
  • The provided balanced equation applies to the reaction that takes place between lithium hydroxide and sulfuric acid. 2LIOH + H,S
    14·1 answer
  • Pls help 10 points<br> Plsplsplspslspslspslsspsls
    6·2 answers
  • What is (part of life)and(art of life)?someone will answer me​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!