Physics
Physics, 25.02.2021 22:30, ellisc7044

A student is using different colored beads to represent different elements to model the following chemical reaction: Na2S + HCl β†’ NaCl + H2S

image

A student noticed that an equation is unbalanced. After balancing the equation, how many white beads does the student need on the product side to show that mass is conserved after the reaction?

A.
4

B.
2

C.
3

D.
5

answer
Answers: 1

Other questions on the subject: Physics

image
Physics, 21.06.2019 15:30, toxsicity
The four giant gas points that are made primarily of lightweight elements are
Answers: 3
image
Physics, 21.06.2019 17:00, cxttiemsp021
Which of the following is considered to be a vector?               a.  temperature    b.  velocity    c.  time    d.  mass
Answers: 1
image
Physics, 22.06.2019 06:00, ayoismeisalex
Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?
Answers: 1
image
Physics, 22.06.2019 08:00, KA115
What is a good example of instantaneous speed
Answers: 2
Do you know the correct answer?
A student is using different colored beads to represent different elements to model the following ch...

Questions in other subjects:

Konu
Mathematics, 11.11.2020 21:00