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dangina [55]
3 years ago
10

Which resource is the best for information about current events? biography encyclopedia newspaper

Chemistry
1 answer:
pshichka [43]3 years ago
8 0

Answer:

Newspaper

Explanation:

Edge

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What is unit? Write down the units of mass, temperature and power​
Dvinal [7]

Explanation:

  • a single thing, person, or group forming part of a whole There are 36 units in my apartment building.
  • the least whole number : one.
  • a fixed quantity (as of length, time, or value) used as a standard of measurement An inch is a unit of length.

mass=kilogram (kg)

temperature=kelvin

power=watt

hope it helps

<h2>stay safe healthy and happy..</h2>
7 0
4 years ago
Read 2 more answers
Which molecule will form a solution with a very low pH?<br> О Н3РО4<br> О Н20<br> O NaOH<br> О кон
Contact [7]

Answer:

O H3PO4

Explanation:

google because i looked it up

4 0
3 years ago
Determine the number of valence electrons in each of the neutral atoms.
Trava [24]

Answer:

Carbon=8

Nitrogen=5

Oxygen=6

Sulphur=6

Iodine=7

Explanation:

5 0
3 years ago
What forces typically hold separate molecules together?
Lelechka [254]

Answer:

Intermolecular forces.

Explanation:

5 0
4 years ago
A 254.5 g sample of a white solid is known to be a mixture of KNO3, BaCl2, and NaCl. When 116.5 g of this mixture is dissolved i
Margaret [11]

Answer:

Mass of KNO3 in the original mix is 146.954 g

Explanation:

mass of KNO_3 in original  254.5 mixture.

moles of BaSO_4 = \frac{mass}{Molecular\ Weight}

moles ofBaSO_4  = \frac{68.3}{233.38}

                               = 0.2926 mol of BaSO4

Therefore,

0.2926 mol of BaCl2,

mass of BaCl_2 = mol\times molecular weight

                         = 0.2926\times 208.23

                         = 60.92 g

the AgCl moles = \frac{mass}{Molecular\ Weight}

                          = \frac{199.1}{143.32}

                          = 1.3891 mol of AgCl

note that, the Cl- derive from both, BACl_2 and NaCl

so

mole of Cl- f NaCl = (1.3891) - (0.2926\times 2) = 0.8039 mol of Cl-

mol of NaCl = 0.8039 moles

mass = mol\times Molecular\ Weight  = 0.8039 \times 58 = 46.626\ g \ of \ NaCl

then

KNO3 mass = 254.5 - 60.92-46.626 = 146.954 g of KNO_3

Mass of KNO3 in the original mix is 146.954 g

8 0
3 years ago
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