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adell [148]
2 years ago
14

10

Chemistry
2 answers:
vlada-n [284]2 years ago
4 0

Answer:

i think its (methyl orange)

jasenka [17]2 years ago
3 0

Answer:

Methyl orange is an indicator which turns yellow in an alkaline solution.

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If 1000. mL of water freezes, which of the following is a reasonable approximation for the volume of the resulting ice?
Fudgin [204]

Answer:

If 1000. mL of water freezes, which of the following is a reasonable approximation for the volume of the resulting ice?

Group of answer choices

1000. mL

961 mL

1040 mL

Explanation:

Ice is fewer denser than water.

The reason is the volume occupied by the same mass of ice with water is more than the volume occupied by water. Ice has more empty space within it.

Due to this reason, ice floats on water.

When 1000ml of water freezes to ice then its volume is greater than water.

Among the given options the correct answer is 1040 mL .

7 0
3 years ago
10.0 g of calcium carbonate is treated with 10.0 g of HCl and,
Marysya12 [62]

Answer:

3.5

Explanation:

8 0
3 years ago
What are the functions of arteries, veins, and capillaries?
lilavasa [31]

Answer:

they all have one common function which is to pump blood and Arteries carry blood away from the heart; the main artery is the aorta. ... Capillaries carry blood away from the body and exchange nutrients, waste, and oxygen with tissues at the cellular level. Veins are blood vessels that bring blood back to the heart and drain blood from organs and limbs.

Explanation:

6 0
3 years ago
What types of stimuli can cause the gates on ion channels to open or close?
morpeh [17]
In the voltage-gated channels, the stimuli is a change in the voltage across the membrane.

In mechanically gated channels the stimuli is a mechanical stress.

In ligand-gated channels the stimuli is the binding of a ligand:ion or molecule that binds to a metal atom.

6 0
3 years ago
Which is the molar mass of BF3?<br> 10.81 g/mol<br> 29.81 g/mol<br> 48.81 g/mol<br> 67.81 g/mol
kondor19780726 [428]

 The molar mass of BF3  is  67.81  g/mol


  <em><u> Explanation</u></em>

  •  Molar mass   is the  mass  of all  atoms  in a molecule  in gram per  mole.
  • molar mass  of a molecule is calculated by adding  atomic mass  of constituent  atom
  • use the periodic table  to determine the atomic mass of each element in the  molecule.

that is;

         atomic mass of B = 10.81 g/mol

         atomic  mass of F  = 19 g/mol

  • since there 3 atoms  of F  in BF3 the  atomic massof F in BF3=  3 x19  =  57 g/mol
  • total molar  mass of BF3 = 10.81 g/mol + 57 g/mol = 67.81  g/mol
5 0
3 years ago
Read 2 more answers
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