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
Leya [2.2K]
3 years ago
7

How many sigfigs in 10.0 ? Your answer I

Chemistry
1 answer:
alina1380 [7]3 years ago
7 0

Answer:

3

Explanation:

10.0 has 3 significant figures

You might be interested in
Which of the following particles are of approximately equal mass? (multiple answers)
balu736 [363]
Neutrons and Protons are equal in mass (≈ 1amu)
8 0
3 years ago
Read 2 more answers
How can the atomic number of nitrogen be determined
IRINA_888 [86]
<h2>Answer and Explanation </h2>

Nitrogen is present in group 5. It contains 7 electrons and protons. It has 2 electrons in its first shell and 5 electrons in second shell. In order to determine the atomic number of nitrogen, we should know about the number of protons or electrons of the atom.

Atomic number is denoted by Z. Z= number of protons. Hence, nitrogen consists of seven protons as well as seven electrons. Therefore, its atomic number (Z) will also be 7.

5 0
3 years ago
Which compound has the highest melting point?
motikmotik
I think b carbon dioxide
3 0
3 years ago
3) A certain reaction has the following general form: A + B à AB At a particular temperature the concentration versus time were
seropon [69]

Answer:

a. First order.

b. k=3.7x10^{-3}s ^{-1}

c. t_{1/2}=187.3s

d. [A]=0.111M

Explanation:

Hello.

a. In this case since the slope is in s⁻¹ we can infer that the lineal form of the rate law is:

ln[A]=-kt+ln[A]_0

Which is also:

y=mx+b

It means that the reaction is first-order as slope equals the negative of the rate constant which also has units of first-oder reaction.

b. Since the slope is −3.7 x 10−3 s−1 the rate constant is:

k=-m\\\\k=-(-3.7x10^{-3}s ^{-1})\\\\k=3.7x10^{-3}s ^{-1}

c. For first-order reactions, the half-life is:

t_{1/2}=\frac{ln(2)}{k}\\ \\t_{1/2}=\frac{ln(2)}{3.7x10^{-3}s^{-1}}\\\\t_{1/2}=187.3s

d. In this case, since the integrated first-order rate law is:

[A]=[A]_0exp(-kt)

The concentration once 220 seconds have passed is:

[A]=0.250Mexp(-3.7x10^{-3}s^{-1}*220s)\\\\

[A]=0.111M

Regards.

7 0
4 years ago
Select the correct structure that
Leni [432]

Answer:

Explanation:

its b

8 0
3 years ago
Other questions:
  • Salt dissolves in water because salt is held together by:
    12·1 answer
  • True or False: A larger numerical value for electron affinity means it is more difficult for an electron to be added to an atom.
    15·2 answers
  • Can someone help me answer this question
    14·1 answer
  • Please, can anyone confirm that my answers are correct?
    9·2 answers
  • Please help me on this.
    10·1 answer
  • What is the answers ?
    14·1 answer
  • What is a chemical nonmegletor​
    9·2 answers
  • Which subatomic particles have a negative charge?
    8·2 answers
  • Which of the following statements BEST describes the nucleic acids?
    12·1 answer
  • Which of the following molecules is not involved in the maintenance of the resting membrane potential?a. potassium cations
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!