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adell [148]
3 years ago
9

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

Chemistry
2 answers:
Mama L [17]3 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]3 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

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The alkali metals play virtually the same general chemical role in all their reactions. (b) How is it based on atomic properties
vfiekz [6]

b) It is based on atomic properties as alkali metals requires 7 more electrons to complete their outer orbit. And they try to give those electrons to other elements to obtain noble gas configuration.

Noble gases are the gases which do not react easily with anything. They are also called as Inert gases, and belongs to group 18 of the periodic table.

Alkali metals are the substances which are found in Group I of a periodic table. Mostly the elements which are present are:

  • Lithium (Li)
  • Sodium (Na)
  • Potassium (K)
  • Rubidium (Rb)
  • Cesium (Cs)
  • Francium (Fr)

Properties of alkali metals are:  Soft, shiny reactive metals. They are soft enough to cut with knife. Metals react with water and air quickly and gets tarnish, so pure metals are stored in container by dipping them in oil to prevent oxidation.

To know more about Alkali metals, refer to this link:

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6 0
2 years ago
Which of the following are binary ionic compounds?
umka2103 [35]

Answer:

the correct answer would be D Iron (III) oxide

Explanation:

hope this helps

8 0
3 years ago
What charge does a covalent bond have?
lys-0071 [83]
Basically a covalent bond would have been made based on two atoms so that it can collaboratively set a trace of more electrons. Although there is no atom that is zero which if it had that then it would considerably be a net charge which it is not from this problem. What makes it unique about it is that this attractive force from creating the bond of the electrons that would be purposely activated that are the nuci for constructive used into two atoms.
8 0
3 years ago
The air inside a flexible 3.5L container has a pressure of 115Kpa. What should the volume of the container be increased to in th
LenaWriter [7]

Answer:

V₂ = 4.82 L

Explanation:

Given data:

Initial volume of gas = 3.5 L

Initial pressure = 115 Kpa

Final volume = ?

Final Pressure = 625 torr

Solution:

Final Pressure = 625 torr (625/760 =0.82 atm)

Initial pressure = 115 Kpa (115/101 = 1.13 atm)

The given problem will be solved through the Boly's law,

"The volume of given amount of gas is inversely proportional to its pressure by keeping the temperature and number of moles constant"

Mathematical expression:

P₁V₁ = P₂V₂

P₁ = Initial pressure

V₁ = initial volume

P₂ = final pressure

V₂ = final volume  

Now we will put the values in formula,

P₁V₁ = P₂V₂

1.13 atm × 3.5 L = 0.82 atm × V₂

V₂ = 3.955 atm. L/0.82 atm

V₂ = 4.82 L

5 0
4 years ago
What is the shape of the H2S molecule?<br> bent<br> pyramidal<br> linear<br> trigonal planar
alexira [117]

Answer:

The answer is bent

7 0
3 years ago
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