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Wittaler [7]
2 years ago
6

A scientific conclusion is best supported by results

Chemistry
2 answers:
pashok25 [27]2 years ago
4 0

Answer:

C. that are replicated through multiple trials

Explanation:

Hope this helps! Have a wonderful rest of your day!

aleksklad [387]2 years ago
3 0

Answer:

A scientific conclusion is best supported by results that are replicated through multiple trials.

Explanation:

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JOSE BOUGHT 750 BAGS OF PEANUTS FOR 375 HE INTENDS TO SELL EACH BAG FOR 0.15 MORE THAN HE PAID HOW MUCH SHOULD HE CHARGE FOR EAC
labwork [276]
He paid 2 dollars for each bag. Then add 15 cents for that and he would charge $2.15 for each bag.
7 0
3 years ago
Read 2 more answers
Calculate the pH of a solution that is 0.210 M in nitrous acid (HNO2) and 0.290 M in potassium nitrite (KNO2). The acid dissocia
jeka94

Answer:

pH = 3.49

Explanation:

We have a buffer system formed by a weak acid (HNO₂) and its conjugate base (NO₂⁻ coming from KNO₂). We can calculate the pH  of a buffer ssytem using the Henderson-Hasselbach equation.

pH = pKa + log [base] / [acid]

pH = -log Ka + log [NO₂⁻] / [HNO₂]

pH = -log 4.50 × 10⁻⁴ + log 0.290 M / 0.210 M

pH = 3.49

6 0
3 years ago
What is the force needed to accelerate a sled with a mass of 2 kg at a rate of 3.0/s²
frutty [35]

Answer:

<h3>The answer is option A</h3>

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

<h3>Force = mass × acceleration</h3>

From the question

mass = 2 kg

acceleration = 3 m/s²

We have

Force = 2 × 3

We have the final answer as

<h3>6.0 N</h3>

Hope this helps you

7 0
3 years ago
Calculate the ph of a 0.17 m solution of c6h5nh3no3 (kb for c6h5nh2 = 3.8 x 10-10). record your ph value to 2 decimal places.
MatroZZZ [7]
<span>Mass of the solution = 0.17m
 Kb for C6H5NH2 = 3.8 x 10^-10
 We know Ka for C6H5NH2 = 1.78x10^-11
  We have Kw = Ka x Kb => Ka = Kw / Kb
  => (C2H5NH2)(H3O^+)/(C2H5NH3^+) => 1.78x10^-11 = K^2 / 0.17
 K^2 = 3 x 10^-12 => K = 1.73 x 10^-6.
 pH = -log(Kw(H3O^+)) = -log(1.73 x 10^-6) = 5.76</span>
6 0
3 years ago
Molar mass of A1C1 3
Kamila [148]

Answer:

Gold(III) chloride

5 0
2 years ago
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