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
adelina 88 [10]
2 years ago
12

Which of the following could have the formula XY₂?

Chemistry
1 answer:
Savatey [412]2 years ago
5 0

Answer: B

Explanation:

There is an atom of one type of element and then two atoms of another type of element.

You might be interested in
Question 5
pantera1 [17]

Answer: The coefficient for the diatomic oxygen (O2) is 3.

Explanation:

To know the coefficient for the diatomic Oxygen, we need to balance the equation.

Fe + O2 ------->   Fe2O3

LHS of the equation; Fe =  1    , O2 = 1

RHS of the equation; Fe = 2 ,  O = 3

∴ Multiply 'Fe' on the LHS of the equation by 4 and O2 by 3

   Doing that will give the balance equation which is;

   4 Fe +  3 O2  --------> 2 Fe2O3

The coefficient for the diatomic oxygen (O2) as seen from the equation is 3.

7 0
3 years ago
200cm3 of oxygen diffuse through a porous partition in 10 seconds. How long will it take 120cm3 of chlorine to diffuse through t
Lubov Fominskaja [6]
If 200cm^3 takes 10secs then 120 will take 6secs. i hope u understood
6 0
3 years ago
Is one mole of zinc the same as one atom of zinc?
Papessa [141]

Answer: No.

Explanation: One mole of zinc is not the same as one atom of zinc. In one mole of zinc, there are approximately 6.022*10^23 atoms of zinc.

3 0
2 years ago
How are isotopes of the same chemical element alike? How are they different?
Stella [2.4K]

<u>Answer:</u> The atomic mass of these species is different and atomic number remains same.

<u>Explanation:</u>

Isotopes are the chemical species of the same element having different number of neutrons.

  • Atomic number is equal to the number of protons or electrons present in that element.

Atomic Number = Number of electrons = Number of protons

  • Atomic mass is defined as the sum of number of protons and neutrons contained in an atom.

Atomic Mass = Number of protons + Number of neutrons

For isotopes, as the number of neutrons differ, the atomic mass also differs.

For Example: Carbon has 3 naturally occurring isotopes: _6^{12}\textrm{C},_6^{13}\textrm{C}\text{ and }_6^{14}\textrm{C}. The atomic number remains the same but atomic mass differs.

Hence, for isotopes, the atomic mass of these species is different and atomic number remains same.

6 0
3 years ago
Brown eye color is a dominant trait and blue eye color is a recessive trait.
Ksju [112]

Answer:

A. The person has brown eyes, and the brown eye color remains a dominant trait.

Explanation:

The dominant trait will always be the one to be show. The recessive trait will be shown if both recessive alleles are inherited.

3 0
2 years ago
Other questions:
  • I NEED HELP PLEASE !!!!
    8·2 answers
  • Is homogenised milk a solution, suspension or a colloid?
    7·1 answer
  • What type of rock is quartzite
    14·1 answer
  • In column chromatography (microscale), after loading it with solvent and adsorbent and prior to loading the sample, what level s
    11·1 answer
  • If 143.56 mL of 0.6653 M ammonium carbonate reacts with 175.37 mL of 0.8732 M chromium(III) sulfate in a double replacement reac
    8·2 answers
  • The zinc case in the dry cell battery serves as the
    9·1 answer
  • PLEASE ANSWER ASAP!!!!!!! 50 points if the answer is correct!
    9·1 answer
  • Prokaryotes store their DNA in a nucleus.<br> True<br> or false
    7·2 answers
  • Calculate the speed of light in water. The speed of light in air is 3.00 x 108 m/s.
    12·1 answer
  • The VSEPR model was developed before any xenon compounds had been prepared. Thus, these compounds provided an excellent test of
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!