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AlexFokin [52]
3 years ago
13

Why should scietist as questions

Chemistry
1 answer:
larisa86 [58]3 years ago
7 0

Answer:

So they have the right answers

Explanation:

I know

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The mass of an atom is determined by the number of protons the element has. The more protons, the heavier the element.
alekssr [168]

Answer:

a i think true.

Explanation:

3 0
3 years ago
What system was put into place in 1965 to help people be prepared for future tornados? WILL GIVE BRAINLIEST AND THANKS
Maslowich

Answer:

Eas and NOAA is that system

3 0
3 years ago
A compound with a molar mass of 102.133 g/mol contains an element with a subscript of 5 . the element is 58.80 g per 100.0 g com
VLD [36.1K]

Answer:

12.0108408

Explanation:

Denote the element with a letter like say X. Since it has a subscript of 5, then, X5.

Molecular mass=102.133g/mol.

% of X in compound =58.8/100

=0.588

Mass of X in the compound = 0.588*102.133 ( the % of X in compound * molar mass of compound)

= 60.054204

X5=60.054204

Then element X has a mass of 60.054204/5=12.0108408

6 0
3 years ago
Write the chemical equation for hbro reacting with water. what are the products? do you expect to have any hbro molecules left i
Vinil7 [7]
1) HOBr stands for hypobromous acid. On reacting with water, products formed are OBr- and H3O+. Following reaction occurs during this process.

<span>                                     HOBr + H2O </span>⇄<span> OBr- + H3O+

2) HOBr is a weak acid and have a lower value of dissociation constant (Ka ~ </span><span>2.3 X 10^–9). Hence, </span><span> large number of undissociated HOBr molecules are left in solution, when the reaction is completed/reaches equilibrium.</span>


6 0
3 years ago
Read 2 more answers
Calculate the molality of an ethylene glycol (C2H6O2) soltuion, that has a molarity of 2.07 M. The density of the solution is 1.
vlada-n [284]

Answer:

2.03

Explanation:

Let's <u>assume we have 1 L of the solution</u>:

  • There would be 2.07 ethylene glycol moles.
  • The solution would weigh (1000 mL * 1.02 g/mL) = 1020 g.

With that information we can <u>calculate the molality</u>:

  • molality = moles of solute / kg of solvent
  • molality = 2.07 moles / (1020 ÷ 1000) = 2.03 m

Keep in mind that this is only an estimate, as we used the kg of the solution and not of the solvent.

3 0
2 years ago
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