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Rainbow [258]
2 years ago
10

The measurement 0.01011 km has how many significant figures?

Chemistry
2 answers:
REY [17]2 years ago
6 0
The answer is 4 sorry if I’m wrong ):
OLEGan [10]2 years ago
5 0

Answer: 4

Explanation:

Sig Figs

4

Decimals

5

Scientific Notation

1.011 × 10-2

Words

zero point zero one zero one one

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Which two elements have properties that are alike
Feliz [49]
Answer:
Barium and Calcium

Explanation:
When heated with chlorine,
Both calcium and barium are able to form ionic bonds.
Hydrogen can only form bonds that are partial positive. It is not strong enough to be considered an ionic bond.
Silicon forms strong covalent with chlorine, called silicon tetrachloride. The structure is in diamond form which requires a lot of heat energy to break the bonds are way more than energy needed to break the bonds between calcium chloride.
Krypton is an inert element which does not form bonds with any elements under standard conditions
6 0
2 years ago
Read 2 more answers
A. What colors are exhibited by chromium in its<br> common oxidation states?
Lelu [443]

Answer:

Blue, orange and green

Explanation:

Three different colors are observed from compounds containing different oxidation states of chromium: +2 (blue), +3 (green), and +6 (orange).

6 0
3 years ago
How is molarity measured
Anuta_ua [19.1K]
Molarity (m) is defined as the number of moles to solute (n) the volume (v) of the solution in liters is important to note that the molarity is defined as moles of solute per liter of solution not moles of solute per liter of solute.
5 0
3 years ago
Read 2 more answers
Which of the following is true of gases
yuradex [85]

4?

Explanation:

i think its 4, i might be wrong.

7 0
2 years ago
A 0.944 M solution of glucose, C6H12O6, in water has a density of 1.0624 g/mL at 20∘C. What is the concentration of this solutio
____ [38]

Answer:

Mole fraction: 0,0157.

Molality: 0,889m

Mass%: 16%

Explanation:

<em>The units are mole fraction, molality and mass%</em>

<em />

Units of mole fraction are moles of glucose per total moles.

Moles of glucose assuming 1L are:

0,944 moles.

Moles of water in 1L are:

1L × (1,0624kg/L) × (1000g / 1kg) × (1mol / 18,02g) = <em>59,0 moles of water</em>

<em />

Mole fraction is: 0,944 moles / (59,0 mol + 0,944mol) = <em>0,0157</em>

Molality is mole of solute (0,944) per kg of solution (1,0624kg):

0,944mol / 1,0624kg = <em>0,889m</em>

<em></em>

In mass percent total mass is 1062,4g and mass of 0,944 moles of glucose is:

0,944mol×(180,156g/1mol) = 170g of glucose. Mass%:

170g / 1062,4g ×100 = <em>16%</em>

<em></em>

I hope it helps!

6 0
3 years ago
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