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
Ad libitum [116K]
3 years ago
9

How many significant figures does 546.000 have

Chemistry
1 answer:
choli [55]3 years ago
7 0
This has only only three sig figs because it is 546.000 the zeros are just place holders so thus meaning they are not significant. It is just another way to write 546 because in that number there is also 3 sig figs. They are just trying to throw you off. Just watch out because if the example is 540 then it is just two significant digits, and it were to be 540. then it be three cause that "." makes the zero significant.  <span />
You might be interested in
Why would 18 be wrong for the atomic mass of an atom with 6 neutrons, 6 electrons, 6 protons?
11Alexandr11 [23.1K]
Atomic mass is just protons plus neutrons
6 0
2 years ago
Earth's axis is tilted. Tell what would happen if it was vertical instead.
slamgirl [31]
I think the like term is 6 hope this is right
7 0
3 years ago
Read 2 more answers
Plz someone help, really struggling
frez [133]

Answer:

22.9 Liters CO(g) needed

Explanation:

2CO(g)     +   O₂(g)    =>    2CO₂(g)

? Liters          32.65g

                 = 32.65g/32g/mol

                 =   1.02 moles O₂

Rxn ratio for CO to O₂ = 2 mole CO(g) to 1 mole O₂(g)

∴moles CO(g) needed = 2 x 1.02 moles CO(g) = 2.04 moles CO(g)

Conditions of standard equation* is STP (0°C & 1atm) => 1 mole any gas occupies 22.4 Liters.

∴Volume of CO(g) = 1.02mole x 22.4Liters/mole = 22.9 Liters CO(g) needed

___________________

*Standard Equation => molecular rxn balanced to smallest whole number ratio coefficients is assumed to be at STP conditions (0°C & 1atm).

6 0
2 years ago
Can someone PLEASE HELP me? <br><br> How can you tell if a bond is Covalent?
g100num [7]
There is a couple different ways to determine if a bond is ionic orcovalent. By definition, an ionicbond is between a metal and a nonmetal, and a covalent bond is between 2 nonmetals. So you usually just look at the periodic table and determine whether your compound is made of a metal/nonmetal or is just 2 nonmetals.
6 0
3 years ago
Calcium atoms have two electrons in the outermost shell. As a result, you would expect calcium to form ions with a charge of
mixer [17]
Calcium will form ions with a charge of +2
5 0
3 years ago
Other questions:
  • How many moles of calcium hydroxide, ca(oh)2, are needed to neutralize 2 moles of sulfuric acid, h2so4?
    5·1 answer
  • True or False ? Endothermic reactions are characterized by net absorption of thermal energy from its surroundings which leads to
    8·1 answer
  • What is the difference between a mixture and a compound? (need an easy two sentence answer (able to explain it to a 8 your old).
    14·1 answer
  • Which forms of energy can be released during a chemical reaction?
    7·1 answer
  • BEBE
    14·1 answer
  • What can be inferred from the graph?
    7·1 answer
  • Can the ratio of hydrogen to oxygen change if a solute is dissolved in the water
    13·1 answer
  • 1. Why is the timing of tides predictable?
    5·1 answer
  • How many Joules of heat are released from a 400g piece of glass that has been cooled
    9·1 answer
  • If Protons are just as many as electrons, if I add neutrons to an atom, what is that called?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!