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Tresset [83]
3 years ago
9

For the following experiments, identify the independent variable and the dependent variable:

Chemistry
1 answer:
faust18 [17]3 years ago
3 0

Answer:

A) IV: number of hours DV: score

Explanation:

Coz,

IV- is the variable that u change

DV- is the variable that u test or measure

In this case, we need to change the hours of studying to see how studying for different hours [1 hr, 2hr, etc (( Independant variable coz we're changing the no. of hours)) ] is going to affect the student's score, and in the end, we are measuring the score of each student [this is the dependant variable].

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How many moles of the Htion in 395 mL of 1.325 M sulfuric acid (H2SO4).
Irina18 [472]

Answer:

1.05 mol

Explanation:

Step 1: Given data

  • Molarity of sulfuric acid (M): 1.325 M (1.325 mol/L)
  • Volume of solution (V): 395 mL (0.395 L)

Step 2: Calculate the moles of sulfuric acid (n)

We will use the following expression.

M = n/V

n = M × V

n = 1.325 mol/L × 0.395 L = 0.523 mol

Step 3: Calculate the moles of H⁺

H₂SO₄ dissociates completely according to the following equation.

H₂SO₄ ⇒ 2 H⁺ + SO₄²⁻

The molar ratio of H₂SO₄ to H⁺ is 1:2. The moles of H⁺ are 2/1 × 0.523 mol = 1.05 mol.

7 0
2 years ago
The table above lists the wavelength range, frequency range, possible uses, and hazards of the seven types of electromagnetic
arsen [322]

X-ray

Explanation:

X-rays are used medically by doctors to image the interior of the human body but can cause cell damage.

X-rays are energetic radiations that are classified as ionizing radiations.

They penetrate the skin and body tissues.

  • X-rays were discovered by  Wilhelm Conrad Röentgen In Germany in the year 1895.
  • The rays have a wide range of application today.
  • They are used in x-ray therapy to fight cancerous cells in the body.

Learn more:

X-ray brainly.com/question/6507143

#learnwithBrainly

4 0
3 years ago
There is no _____ movement in a strike-slip fault, meaning there are no mountain ranges.
shepuryov [24]

Answer:

isostatic adjustment movement

8 0
3 years ago
Based off molecular polarity determined by VSEPR theory, in which solvent would glucose be the least soluble?
yawa3891 [41]

Answer:

Glucose will be least soluble in non polar solvent

Explanation:

Glucose is a polar compound

According to VSEPR theory like compounds are soluble in like solvents means polar compounds are soluble in polar solvents and non polar compounds are soluble in non polar compounds

As glucose is a polar compound so it will be more soluble in polar solvent and least soluble in non polar solvent  

6 0
3 years ago
How is kilo gram is related to gram​
Levart [38]

Answer:

i know you think that they are just related because kg has kilo but they are related because

Explanation:

1000g makes 1 g.You see how much there is a difference in the solution because how is one=one thousand,well that is all i can help you from here.bye panta

4 0
3 years ago
Read 2 more answers
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