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
adell [148]
2 years ago
9

How many significant figures are there in the measurement 0.0034 Kg?

Chemistry
2 answers:
Mama L [17]2 years ago
8 0

Answer:

2 significant figures

Explanation:

Your measurement will have 2 significant figures, the two non-zero digits.

<em>I hope this helps you out! :)</em>

laiz [17]2 years ago
5 0

Answer:

there are 2 sig figs ( significant figures) which is 34. Zeros are not counted as significant figs in decimals like above

You might be interested in
calculate the mols of alt gas if the volume is 0.97 liters at a temperature of 12 C and the pressure is 152 Kpa’s
katrin2010 [14]

Answer:

0.062mol

Explanation:

Using ideal gas law as follows;

PV = nRT

Where;

P = pressure (atm)

V = volume (L)

n = number of moles (mol)

R = gas law constant (0.0821Latm/molK)

T = temperature (K)

Based on the information provided;

P = 152 Kpa = 152/101 = 1.50atm

V = 0.97L

n = ?

T = 12°C = 12 + 273 = 285K

Using PV = nRT

n = PV/RT

n = (1.5 × 0.97) ÷ (0.0821 × 285)

n = 1.455 ÷ 23.39

n = 0.062mol

4 0
2 years ago
What is thr pH of a solution of NaCl that has [H+] = 1.00 × 10-7 M
almond37 [142]
Ph= - log [H+] = -log 1.00× 10-7 = -(log 1 + log 10-7) = -( 0 + (-7log 10) = -( -7) = 7
3 0
2 years ago
Read 2 more answers
What is a ‘control’ in an experiment?
tensa zangetsu [6.8K]

Answer:

The answer fo this is D because of the person controlling the outcome for both variables

3 0
2 years ago
Read 2 more answers
What is the solution to the problem expressed to the correct number of significant figures? 2.13 + 1 = ?
Paha777 [63]

So,

With addition, we the last digit we keep will be the one which is known for both individual values.

We know 2.13 to the hundredths, but we only know 1 to the ones.  Therefore, we will round off in the ones place.

2.13 + 1 = 3.13 (unrounded)

= 3 (rounded)

Hope this helps!

7 0
2 years ago
Balance this chemical equation.
Vadim26 [7]

Answer:

Explanation:

Reaction Given

    NaHCO₃ (s) + HC₂H₃O₂ (aq) -------> CO₂ (g) + H₂O (l) + NaC₂H₃O₂ (aq)

Balance Equation = ?

Solution:

Balance Chemical Equation:

A balanced chemical equation is that in which the number of the reactant atoms equal to the number of the product atom.

For example if the carbon at the reactant side is 3, the number of carbon must be 3 on the product side.

Check the chemical equation and count the number of atoms at the reactant side and product side.

If the number of atoms of the reactants equal to the number of atoms of products then the reaction is balanced but if not equal then reaction is not balanced

Balancing is an trial and error process to get a balance reaction.

First we count the number of atoms of reactant and product

Number of atoms of Reactant:

Na = 1

O = 5

H = 5

C = 3

Number of atoms of Product:

Na = 1

O = 5

H = 5

C = 3

So this a balance equation as the atoms of the reactant atom equal to the number of the product atoms.

Na atom is 1 on both reactant and product side

Oxygen atoms are 5 on reactant and 5 on product side

hydrogen atoms are 5 on reactant and 5 on product side

Carbon atoms are 3 on reactant and 3 on product side

So all the compounds in the reaction have 1 as its coefficient in the blanks

<u />

<u>1   </u>NaHCO₃ (s) +  <u>1  </u>HC₂H₃O₂ (aq) -----> <u>1  </u>CO₂ (g) + <u>1  </u>H₂O (l) + <u>1  Na</u>C₂H₃O₂ (aq)

7 0
3 years ago
Other questions:
  • 20 POINTS 2 QUESTIONS CAN YOU ANSWER THEM ???
    7·2 answers
  • What happens if your caculating the speed of a longitudinal wave and you increase the temp in the room
    6·1 answer
  • When a scientific theory has been tested and proved by the scientific community, it becomes a law. True or False
    6·1 answer
  • A certain metal fluoride crystallizes in such a way that the fluoride ions occupy simple cubic lattice sites, while the metal io
    6·1 answer
  • Hydrogen bonding between polyamide chains plays an important role in determining the properties of a nylon such as nylon 6,6. Dr
    14·1 answer
  • Dehydration is a reversible process. Which of the two set-ups, distillation or
    8·1 answer
  • Triangle ABC is reflected over the x-axis when is the coordinate for C?
    9·1 answer
  • What is the percent of oxygen in the compound Mnz(S2O3)3​
    13·1 answer
  • What is the density of an object having a mass of 16 g and a volume of 30 mL ?
    9·2 answers
  • The Rock Shown is Made of Light and Dark Mineral Crystals that are Evenly Distributed.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!