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Andrew [12]
3 years ago
11

Two scientists said to report unusual findings when they shared their results from a recent science experiment. Why is this not

scientifically sound?
A. Scientists should always report their observations and results truthfully.
B. Scientists are capable of accepting new and different ideas.
C. Scientists often invent ways to solve difficult problems and produce new things.
D. Scientists are eager to learn more about what they study.
Please Hurry, Whoever gets this right will get brainiest.
Chemistry
2 answers:
e-lub [12.9K]3 years ago
7 0

Answer: A. Scientists should always report their observations and results truthfully.

Explanation:

The scientific experiment is a fact finding approach which is performed in a step by step orderly manner so as to answer questions related to science. Any bias like skipping the protocol, use of desired equipments, manipulating the observation and results cannot be considered scientifically sound.

According to the given situation, the two scientist might have made manipulation in observation and results which cannot be considered as scientifically sound.  

Reptile [31]3 years ago
6 0
B is the answer because it makes the most sense.
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Suppose of copper(II) acetate is dissolved in of a aqueous solution of sodium chromate. Calculate the final molarity of acetate
uranmaximum [27]

Answer:

0.0714 M for the given variables

Explanation:

The question is missing some data, but one of the original questions regarding this problem provides the following data:

Mass of copper(II) acetate: m_{(AcO)_2Cu} = 0.972 g

Volume of the sodium chromate solution: V_{Na_2CrO_4} = 150.0 mL

Molarity of the sodium chromate solution: c_{Na_2CrO_4} = 0.0400 M

Now, when copper(II) acetate reacts with sodium chromate, an insoluble copper(II) chromate is formed:

(CH_3COO)_2Cu (aq) + Na_2CrO_4 (aq)\rightarrow 2 CH_3COONa (aq) + CuCrO_4 (s)

Find moles of each reactant. or copper(II) acetate, divide its mass by the molar mass:

n_{(AcO)_2Cu} = \frac{0.972 g}{181.63 g/mol} = 0.0053515 mol

Moles of the sodium chromate solution would be found by multiplying its volume by molarity:

n_{Na_2CrO_4} = 0.0400 M\cdot 0.1500 L = 0.00600 mol

Find the limiting reactant. Notice that stoichiometry of this reaction is 1 : 1, so we can compare moles directly. Moles of copper(II) acetate are lower than moles of sodium chromate, so copper(II) acetate is our limiting reactant.

Write the net ionic equation for this reaction:

Cu^{2+} (aq) + CrO_4^{2-} (aq)\rightarrow CuCrO_4 (s)

Notice that acetate is the ion spectator. This means it doesn't react, its moles throughout reaction stay the same. We started with:

n_{(AcO)_2Cu} = 0.0053515 mol

According to stoichiometry, 1 unit of copper(II) acetate has 2 units of acetate, so moles of acetate are equal to:

n_{AcO^-} = 2\cdot 0.0053515 mol = 0.010703 mol

The total volume of this solution doesn't change, so dividing moles of acetate by this volume will yield the molarity of acetate:

c_{AcO^-} = \frac{0.010703 mol}{0.1500 L} = 0.0714 M

8 0
4 years ago
WILL GIVE BRAINLIEST
charle [14.2K]

Answer:

The pressure of the balloon is 0.98 atm

Explanation:

Using the equation P1V1 = P2V2, you can solve for the value of V2, which is 0.98 atm.

(P1V1)/P2 = V2

Plug in the numbers:

(6.5*1.5)/10.00

=0.975 atm

=.98 atm

3 0
3 years ago
What type of Radioactive decay is occurring in the following reaction?
Blababa [14]

Radioactive decay is the loss of energy by unstable atomic nuclei. The reaction shows alpha decay. Thus, option d is correct.

<h3>What is alpha decay?</h3>

Alpha decay is a type of radioactive decay in which an alpha particle or the helium ion is released from the parent cell to produce the daughter nucleus.

The alpha decay in the isotope of the uranium to thorium and an alpha particle is shown as:

²³⁵U₉₂ → ²³¹Th₉₀ + ⁴He₂

In beta decay, a negatively charged electron is emitted along with the daughter nucleus and in gamma decay, gamma rays without charge and mass are emitted.

Therefore, the reaction shows option d. alpha decay.

Learn more about alpha decay here:

brainly.com/question/25013071

#SPJ1

3 0
2 years ago
If 45.6 g of Fe2O3 reacts with excess water, how much heat is required?
tangare [24]

Explanation:

I

have not yet learnt chemistry so sorry

8 0
3 years ago
Read 2 more answers
noble gases, such as argon and neon, are known for being extremely non-reactive. neon and argon are non-reactive because they
nadezda [96]
They have a complete electronic configuration .their P shell is p6 therefore cannot gain or loose electron.
4 0
3 years ago
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