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
docker41 [41]
3 years ago
5

An element X forms a compound XH 3 with hydrogen. Another element Y forms a compound YX 2 with X. Given that the valency of hydr

ogen is 1, What are the valencies of X &Y?
Chemistry
1 answer:
Marina CMI [18]3 years ago
7 0
XH_{3}
H has a positive 1 charge. This means that having 3H = +3<span>.  This is a neutral compound so x= -3 because X+3H= 0

Y</span>X_{2} is also neutral so 2X+Y= 0
we know X=-3 So, 2(-3)+Y=0
-6+y=0
Y=+6 charge

 
Answer: The valency of X is -3. The valency of Y is 6
You might be interested in
Which chemicals are major contributors to ozone layer destruction? Select two answer choices.
gulaghasi [49]

Answer: <em>Chlorine and Bromine</em>

8 0
3 years ago
Read 2 more answers
Which atoms combine together during fusion reaction on the sun?
shusha [124]

Answer:

Hydrogen

Explanation:

5 0
3 years ago
Read 2 more answers
What happens to the molecules of water as it freezes?
Nataly [62]
When Water freezes or begin to freeze, it molecules start to slow down enough that their attraction arrange into one shape till they melt again.
6 0
4 years ago
What do you call the procedure that helps you determine the volume of an irregularly shaped object, whole using a graduated cyli
ki77a [65]
The method is called the displacement method.

You place some water in the graduated cylinder and measure its volume.
Then you add your object and measure the new volume.
The difference between the two volumes is the volume of your object.

6 0
3 years ago
This is a measure of mass per unit volume.
il63 [147K]

Answer:

Density

Explanation:

Density is defined as the mass per unit volume. It is the ratio between the mass and the volume of a substance. It does not matter how large or small a sample of matter is, the same substance will always have the same density, because of this. The ratio between the mass and volume remains the same.

8 0
3 years ago
Other questions:
  • When vinegar and baking soda are combined bubbles begin to form. Bubbles are evidence of a chemical reaction because they
    6·1 answer
  • What is the percentage by mass of nacl in a saturated solution of sodium chloride at 50c
    5·1 answer
  • Acetone and water are miscible. Acetone and hexane are also miscible.
    5·1 answer
  • Explain. How you would separate a mixture of water, sand, salt, and iron feelings into its four component parts
    12·1 answer
  • caclium carbonate +sodium bicarbonate -carbon dioxide+calcium carbonate+sodium chloride+dihydrogen monoxide what kind of reactio
    12·2 answers
  • A water sample tested positive for lead with a concentration of 35 ppm. The density of the solution is 1.00 g/mL Which of the fo
    13·1 answer
  • If u were sitting in a boat as 6 meter waves passed by, how many seconds would pass between them
    5·1 answer
  • when 22 grams of water undergoes a temeprature change from 35 ˚C to 65 ˚C, how much energy does the water absorb? The specific h
    10·1 answer
  • How many
    14·1 answer
  • 1N2 + 3H2 --&gt;
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!