Ask question

Ask question

All categories

2 years ago

9

Which of these best describes the basis on which new scientific ideas are accepted or rejected?

1 answer:

Luda [366]2 years ago

3 0

Answer:

This question lacks options, the options are:

A. Moral and ethical beliefs

B. Popular support

C. Compelling evidence

D. Historical support

The answer is C. Compelling evidence

Explanation:

Scientific investigations are used to proffer solutions to problems or answer a question. However, before these scientific ideas can be accepted or rejected, it must be subject to falsifiable testing via experiment.

A hypothetical statement is given to explain a scientific observation, which is subjected to further testing via experimentation. The outcome of the experiment provides a COMPELLING EVIDENCE on which the acceptance or rejection of a scientific idea is based.

You might be interested in

The following information is to be used for the next 2 questions. In order to analyze for Mg and Ca, a 24-hour urine sample was

Ainat [17]

Answer:

Explanation:

From the given information:

The concentration of metal ions are:

$[Ca^{2+}]= \dfrac{0.003474 \ M \times 20.49 \ mL}{10.0 \ mL}$

$[Ca^{2+}]=0.007118 \ M$

$[Mg^2+] = \dfrac{0.003474 \ M\times (26.23 - 20.49 )mL}{10.0 \ mL}$

$=0.001994 \ M$

Mass of Ca²⁺ in 2.00 L urine sample is:

$= 2.00 L \times 0.001994 \dfrac{mol}{L} \times \dfrac{40.08 \ g}{1 \ mol}$

= 0.1598 g

Mass of Ca²⁺ = 159.0 mg

Mass of Mg²⁺ in 2.00 L urine sample is:

$= 2.00 L \times 0.007118 \dfrac{mol}{L} \times \dfrac{24.31 \ g}{1 \ mol}$

= 0.3461 g

Mass of Mg²⁺ = 346.1 mg

5 0

3 years ago

Different isotopes of the same element must have a different

slega [8]

Answer:

they must have same atomic number and different atomic mass

6 0

2 years ago

Which atom or ion is the largest?<br><br> A. K<br> B. K+<br> C. Ca<br> D. Ca2+<br> E. Li

pishuonlain [190]

Answer:

A. K

Step-by-step explanation:

Remember the trends in the Periodic Table:

Atomic radii <em>decrease</em> from left to right across a Period.
Atomic radii <em>increase</em> from top to bottom in a Group.
Ionic radii of metal cations are <em>smaller</em> than those of their atoms.

Thus, the largest atoms are in the lower left corner of the Periodic Table.

The diagram below shows that K is closest to the lower left, so it is the largest atom. It is also larger than any of the cations.

5 0

3 years ago

Because of bronze'z high _________ , ancient Egyptians were able to use it to make mirrors

postnew [5]

Shiny and soft mental

6 0

3 years ago

At 500 K the reaction 2 NO(g) + Cl2(g) ⇌ 2 NOCl(g) has Kp = 51 In an equilibrium mixture at 500 K, the partial pressure of NO is

Aleks [24]

Answer:

p3=0.36atm (partial pressure of NOCl)

Explanation:

2 NO(g) + Cl2(g) ⇌ 2 NOCl(g) Kp = 51

lets assume the partial pressure of NO,Cl2 , and NOCl at eequilibrium are P1 , P2,and P3 respectively

$Kp=\frac{[NOCl]^{2} }{[NO]^{2} [Cl_2] }$

$Kp=\frac{[p3]^{2} }{[p1]^{2} [p2] }$

p1=0.125atm;

p2=0.165atm;

p3=?

Kp=51;

On solving;

p3=0.36atm (partial pressure of NOCl)

7 0

3 years ago