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Schach [20]
3 years ago
12

Its B i already got it

Chemistry
1 answer:
Rina8888 [55]3 years ago
4 0

Explanation:

With all the scaling up and design improvements, the flight range of the R-7 increased to an intercontinental distance from 330 kilometers for the V-2. The R-7 ended up looking oversized even next to its American contemporaries -- the Atlas and Titan ballistic missiles.

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Calculate the oxidation number of the iodine (I) in each compound: HIO4 = I2 = NaI = HIO3 =
Alisiya [41]
1) in periodic acid (HIO₄), iodine has oxidation number +7, hydrogen has oxidation number +1, oxygen has -2, compound has neutral charge:
+1 + x + 4 · (-2) = 0.
x = +7.

2) in molecule of iodine (I₂), iodine has oxidation number 0, because iodine is nonpolar molecule.

3) in sodium iodide (NaI), iodine has oxidation number -1, sodium has oxidation number +1:
+1 + x = 0.
x = -1.

4) in iodic acid (HIO₃), iodine has oxidation number +5, hydrogen has oxidation number +1, oxygen has -2, compound has neutral charge:
+1 + x + 3 · (-2) = 0.
x = +5.
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4 years ago
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Choose the system to which this item belongs: stomach
hram777 [196]
Digestive. This also includes the intestines.
7 0
3 years ago
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What kind of bond is not formed by differences in electronegativity?
Mama L [17]

Answer:B

Explanation: the only kind of bond that is not formed by differences in electronegativity is a polar disalent bond because it does not exist, at least to my knowledge.

7 0
4 years ago
If you are given an ideal gas with pressure (P) = 259,392.00 Pa and temperature (T) = 2.00 oC
Anna [14]

Answer:

R=0·083 J/mol·K

Explanation:

Ideal gas equation is

<h3>P×V = n×R×T</h3>

where,

P is the pressure of the gas

V is the volume of the gas

n is the number of moles of the gas

R is ideal gas constant

T is the temperature of the gas in Kelvin

In case of given problem

Temperature of the gas = 273+2·00=275·00K

P=259,392·00×10^{-5} atm

(259,392·00×10^{-5} )×8·8 = 1×R×275·00

∴R=0·0830 J/mol·K

But according to the rules of significant figures the value of R must be with least precision of all the values of the other parameters from which the value of R is calculated

Here the least precision is in the volume as it contains only 2 significant digits

∴ Value of R must contain 2 significant digits

∴ R=0·083 J/mol·K

3 0
3 years ago
Evaporation of water becomes rapid if humidity in air is?
tankabanditka [31]

Answer:

Low.......................

8 0
2 years ago
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