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
statuscvo [17]
3 years ago
14

How many sig figs does 0.007 have

Chemistry
1 answer:
jeka57 [31]3 years ago
5 0

Answer:

1

Explanation:

zeros are not counted when they come before a natural number

You might be interested in
For the reaction: 2 A (g) + B (s)= 2 C(s) + D (g)
jolli1 [7]

Answer:

The value of the equilibrium constant = 5.213

Explanation:

Here K_p (equilibrium constant) is referred to as the  partial pressure of product divided by the  partial pressure of reactant with each pressure term raised to power that is equal to its stoichiometric coefficient in balanced equation .

As such only gas appear in K_p  expression as solids takes a value of 1;

SO ; in the  given equation from the question:

2 A (g) + B (s) ----> 2 C(s) + D (g)

K_p = \dfrac{[D]}{[A]^2}

K_p = \dfrac{2.71}{0.721^2}

K_p = 5.213

The value of the equilibrium constant = 5.213

8 0
2 years ago
Why do copper ions go to the negative electrode. Please help someone
shepuryov [24]
Because a copper ion looses electrons, meaning it's negatively charged, and positives and negatives attract.
7 0
3 years ago
Read 2 more answers
Draw one line connecting each factor that increases the rate of a
VLD [36.1K]

Answer:

Adding a catalyst - More collisions every second and more collisions with enough energy to break bonds.

Increase in pressure - more collisions every second

Increase in temperature - more collisions every second with enough energy to break bonds

Explanation:

According to the collision theory, chemical reaction occurs as a result of collision between reacting particles. Only particles that possess energy above the activation energy of the reaction can collide and result in product formation. Collision of particles having energy less than the activation energy merely result in elastic collisions.

Adding a catalyst lowers the activation energy of the reaction. If the activation energy is lowered, more reactants collide and more of those collisions now have enough energy to break bonds.

When the temperature is increased, the particles become more energetic hence more collisions with energy to break bonds occur.

Increase in pressure brings the reactant particles into close proximity hence more collisions occur.

4 0
3 years ago
What is the process that changes a substances from a liquid to a gas below the substance's boiling point?
Vera_Pavlovna [14]
This process is called evaporation as I believe
7 0
3 years ago
How many grams of hydrogen are necessary to react completely with 50.0 g of nitrogen
nlexa [21]

Answer:

25.0 grams

Explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • An ionic bond is a bond between
    12·2 answers
  • If you start with 6 mol of nitrogen gas (N2+) what mass (g) of ammonia (NH4) will be produced?
    9·1 answer
  • Which of the following energy sources are in some way divided from the sun (select all that apply)
    9·1 answer
  • A sample can not be broken down physically or chemically what is it
    12·2 answers
  • How many feet are in 3.2 miles?
    11·1 answer
  • What is the correct interpretation of the mole ratios for the elements in
    10·1 answer
  • Definition of deposition in science​
    8·2 answers
  • How long will it take a piece of strontium-90 (produced in a nuclear test blast) weighing exactly 1000.0 g to be
    8·1 answer
  • Help me please I really need help on this?
    5·1 answer
  • A 350.0 ml sample of gas has a temperature of 22.7 C and a pressure of 0.914 atm. What temperature would be needed for the same
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!