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viktelen [127]
3 years ago
13

What is the process that changes one set of chemicals into another set of chemicals? A. cohesion B. hydrogen bonding C. chemical

reaction D. dissolving
Chemistry
2 answers:
diamong [38]3 years ago
3 0
I think the correct answer from the choices listed above is option C. Chemical reaction is the process <span>that changes one set of chemicals into another set of chemicals. In a chemical reaction, old bonds are broken down forming new bonds therefore new </span>substances<span> with new properties.</span>
Marat540 [252]3 years ago
3 0
It is C. Chemical Reaction.
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How many moles are in 159 Liters of He2F?<br> O 5 moles<br> O 7 moles<br> O 9 moles
KATRIN_1 [288]

Answer:

9 moles

Explanation:

easyly answered

8 0
3 years ago
calculate the volume occupied by 15 moles of a gas at 1.14 atm and 265K. A-286.3L B-321.6L C-247.4L D-304.5L
Vanyuwa [196]

Answer:

A- 286.3L

Explanation:

Using the ideal gas law equation;

PV = nRT

Where;

P = pressure (atm)

V = volume (L)

n = number of moles (mol)

R = gas law constant (0.0821 Latm/molK)

T = temperature (K)

According to the information given in this question;

P = 1.14atm

V = ?

n = 15moles

T = 265K

Using PV = nRT

V = nRT ÷ P

V = (15 × 0.0821 × 265) ÷ (1.14)

V = 326.35 ÷ 1.14

V = 286.27 L

V = 286.3L

3 0
3 years ago
A 0.010 M aqueous solution of a weak acid HA has a pH of 4.0. What is the degree of ionization of HA in the solution?
k0ka [10]
I think the answer might be D
6 0
3 years ago
Solid potassium chlorate when heated yields potassium chloride + oxygen gas? Formula
KatRina [158]
Chemical equation for above reaction is : 
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4 0
4 years ago
What is the mass in grams of BaCl2 that is needed to prepare 200 mL of a 0.500 M solution
DENIUS [597]

Answer:

= 20.82 g of BaCl2

Explanation:

Given,

Volume = 200 mL

Molarity = 0.500 M

Therefore;

Moles = molarity × volume

          = 0.2 L × 0.5 M

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But; molar mass of BaCl2 is 208.236 g/mole

Therefore; 0.1 mole of BaCl2 will be equivalent to;

  = 208.236 g/mol x 0.1 mol

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Therefore, the mass of BaCl2 in grams required is 20.82 g

6 0
3 years ago
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