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
vesna_86 [32]
3 years ago
8

A chemical equation lists NaHCO3(s) as a reactant. What does (s) indicate?

Physics
2 answers:
Ostrovityanka [42]3 years ago
5 0

Answer:

The (s) indicates that the state of matter for NaHCO3 is solid.

Explanation:

When a chemical reaction is written, the state of matter for each components of the reactants and products are mentioned in brackets along with their names or formulas.

For example, NaHCO3 has (s) mentioned in the brackets. The s shows that the state of matter for NaHCO3. (l) represents liquid format. (g) represents that the state of matter is gas.

Alona [7]3 years ago
3 0

Answer:

a) The compound is a solid.

Explanation:

A chemical equation lists NaHCO3(s) as a reactant. What does (s) indicate?

a)  The compound is a solid.

b) The compound is a liquid.

c) The compound is a gas.

d) The compound is dissolved in water.

You might be interested in
The following equation, N2 + 3 H2 —>2 NH3 ,describes a
mafiozo [28]
Physical change 1 is the answer
4 0
1 year ago
Read 2 more answers
Why would knowing the characteristics of circuits be important in designing electrical circuits?
blondinia [14]
The characteristic of a circuit actually indicate how the circuit functions. When one designs a circuit they have a specific function in mind and must know how to combine components in order to fulfill this functions.
8 0
3 years ago
Read 2 more answers
If a ball is tossed straight up into the air, at what position is its potential energy the greatest? Question 2 options: a) when
yarga [219]
Q1: At the highest point
3 0
3 years ago
Whenever two apollo astronauts were on the surface of the moon, a third astronaut orbited the moon. assume the orbit to be circu
almond37 [142]
Missing question:
"Determine (a) the astronaut’s orbital speed v and (b) the period of the orbit"

Solution

part a) The center of the orbit of the third astronaut is located at the center of the moon. This means that the radius of the orbit is the sum of the Moon's radius r0 and the altitude (h=430 km=4.3 \cdot 10^5 m) of the orbit:
r= r_0 + h=1.7 \cdot 10^6 m + 4.3 \cdot 10^5 m=2.13 \cdot 10^6 m
This is a circular motion, where the centripetal acceleration is equal to the gravitational acceleration g at this altitude. The problem says that at this altitude, g=1.08 m/s^2. So we can write
g=a_c= \frac{v^2}{r}
where a_c is the centripetal acceleration and v is the speed of the astronaut. Re-arranging it we can find v:
v= \sqrt{g r}= \sqrt{(1.08 m/s^2)(2.13 \cdot 10^6 m)}=1517 m/s = 1.52 km/s

part b) The orbit has a circumference of 2 \pi r, and the astronaut is covering it at a speed equal to v. Therefore, the period of the orbit is
T= \frac{2 \pi r}{v} = \frac{2\pi (2.13 \cdot 10^6 m)}{1517 m/s} =8818 s = 2.45 h
So, the period of the orbit is 2.45 hours.
6 0
3 years ago
21 POINTS HELP !! For each of the following formulae, infer the kind of and number of atoms.
sergiy2304 [10]
A) atomic number 7
B) 15
C) 6 c, 12 h, 6 o
D) o-8
S-16
5 0
3 years ago
Other questions:
  • Which instrument of the roman rupublic held the most power?​
    6·1 answer
  • The ATP synthase complex allows ATP production by A. proton-driven rotation of the Fo subunit, which causes F1 to change conform
    10·1 answer
  • Give an example of a situation where you could use a cost/ benefit analysis. Be sure to explain at least one cost and one benefi
    6·1 answer
  • An object is moving to the right in a straight line. The net force acting on the object is also directed to the right, but the m
    5·1 answer
  • A plate moves 200 m in 10,000 years. What is its rat in cm/year
    5·1 answer
  • An object has a mass of 0.250 kg. What is the gravitational force of on the object by the earth?
    14·1 answer
  • What type of Galaxy is considered the most common?
    12·2 answers
  • Why might measuring changes in speed or direction be important?
    5·1 answer
  • PLEASE HELP! Describe how you could use a negatively charged Van de Graaff generator to induce a positive charge on a previously
    15·1 answer
  • How is the gravitational force acting on a falling object calculated
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!