What type of slide did you make using the letter 'e' in the lab?

Answers

Answer 1

Answer: orienting the slide and using the objective lenses

Answer 2

Answer:

Final answer:

The 'e' slide referred to in your lab is a basic training tool used in microscopy education. By creating and examining this slide, students learn how to properly operate a microscope.

Explanation:

In the provided lab scenario, the type of slide made using the letter 'e' likely refers to a common activity in microscopy training. The 'e' slide is not specific to any microorganisms or tissues, but rather, is often used for educational purposes to help students learn how to operate a microscope and focus on small, detailed objects. This type of slide is created by writing or printing the letter 'e' onto a clear glass slide, and then attempting to view it under the microscope, thereby learning how to adjust the focus and observe details.

Although the information about the Petroff-Hausser counting chamber and the Snap Lab was provided, that doesn't seem to be relevant here, as your lab focused specifically on making and using a slide with the letter 'e'.

Learn more about e slide here: brainly.com/question/35622782

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how many millimeters of the approximately 0.014 M copper (ll) sulfate solution are needed to prepare 100.00 milliliters of a 0.00028 M copper (ll) sulfate solution

Look up the density of n-butyl chloride (1-chlorobutane). Assume that this alkyl halide was prepared instead of the bromide. Decide whether the alkyl chloride would appear as the upper or the lower phase at each stage of the separation procedure: after the reflux, after the addition of water, and after the addition of sodium bicarbonate.

Answers

Answer:

See explanation below

Explanation:

First, you need to know the density of each compound in order to know this.

The density of 1-chlorobutane is 0.88 g/mL,

The density of water is 1 g/mL

The density of sodium bicarbonate is 2.2 g/cm3.

therefore, the one that has a greater density will always go at the lower phase.

In this case, after the reflux, it will stay in the lower phase, basically because you don't have another solvent with a greater density than the butane.

After adding water, it will be in the upper phase, water has a greater density.

After adding bicarbonate, it will be in the upper phase too.

Bombarding sodium-23 with a
proton produces nuclide X and a neutron. What is nuclide X?

Answers:

magnesium-24

magnesium-23

neon-23

s
odium-24

none of the above

The isotope P
has a half-life of 14.3 days. If a sample originally contained 1.00 g of P,
how much was left after 43 days?

Answers:

0.250 g

0.125 g

0.750 g

0.500 g

Identify X in the reaction
below.
U
+ C
→ Cf
+ X

Answers:

1
alpha particle

3
protons

6
neutrons

6
electrons

A .20 gram sample of C-14 was allowed to decay for 3 half-lives. What mass
of the sample will remain? Carbon-14 has a half life of 5730
years.

Answers:

0.025

0.05

0.1

0
.01

0.05

The isotope Cu
has a half-life of 30 s. If a sample originally contained 48 mg of Cu,
how much time passed before the amount fell to 3 mg?

Answers:

120 s

240s

30 s

60 s(when I did my calculation for the question above, I got 60 seconds)

What radionuclide decays to Fe-56
by beta emission?

Answers:

Fe

Co

Mn

Co

MnHow do I know wat it becomes. I put 57 Co 27 and it's wrong.

The Cf
to Cf
conversion is accompanied by __________.

Answers:

an alpha
emission

a
neutron capture

an electron
capture

an electron releaseI would greatly appreciate your help...ASAP. Thank you.

Answers

Bombarding sodium-23 with a proton produces nuclide X and a neutron. What is nuclide X?

$^(23)_(11)Na--^(\beta^+)--> ^(23)_(10)Ne + e^(+)$

answer: neon
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The isotope P has a half-life of 14.3 days. If a sample originally contained 1.00 g of P,
how much was left after 43 days?

0 days >>> 1.00g
14,3 days >>> 1.00g :2 = 0,5g
(14.3+14.3) days >>> 0.5g : 2 = 0.25g
(14.3+14.3+14.3) days >>> 0.25g : 2 = 0.125g

answer: 0.125g
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Identify X in the reaction
below.
U + C → Cf + X

$^(238)_(92)U ---> ^(251)_(98)Cf+6e^-$

answer: 6 electrons (so it's beta⁻)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

A .20 gram sample of C-14 was allowed to decay for 3 half-lives. What mass
of the sample will remain? Carbon-14 has a half life of 5730
years.

at the beginning >>> 0.20g
1 half-live >>> 0.20g : 2 = 0.10g
2 half-live >>> 0.10g : 2 = 0.05g
3 half-live >>> 0.05g : 2 = 0.025g

answer: 0.025g
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The isotope Cu has a half-life of 30 s. If a sample originally contained 48 mg of Cu,
how much time passed before the amount fell to 3 mg?

0 s (at the beginning) >>> 48mg
30s >>>>>>>>>>>>>>> 48mg : 2 = 24mg
(30+30)s >>>>>>>>>>> 24mg : 2 = 12mg
(30+30+30)s >>>>>>>> 12mg : 2 = 6mg
(30+30+30+30)s >>>>> 6mg : 2 = 3mg

answer: 30+30+30+30 = 120s
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
What radionuclide decays to Fe-56 by beta emission?

$^(56)_(26)Fe--^(\beta^-)-->^(56)_(27)Co + e^-$

answer: ⁵⁶₂₇Co
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The Cf to Cf conversion is accompanied by __________.

Cf to Cf ???? maybe...mistake?

2 points) Now they feel it is best to have you identify an unknown gas based on its properties. Suppose 0.508 g of a gas occupies a volume of 0.175 L at a temperature of 25.0◦C is held at a pressure of 1.000 atm. What gas is this most likely?

Answers

Answer: chlorine gas

Explanation:

mass = 0.508 g volume = 0.175 L

From ideal gas equation.

PV = nRT

(1.0 atm) × (0.175 L) = n × [0.0821 atm L / (mol K)] × [(273.2 + 25.0) K]

n = 1.0 × 0.175 / (0.0821 × 298.2) mol

n = 0.00715 mol

Molarmass= mass/mole

Molar mass of the gas = (0.508 g) / (0.00715 mol) = 71.0 g/mol

The molar mass of Cl₂ (chorine) = 35.5 × 2 g/mol = 71.0 g/mol

Hence, the gas is chlorine.

Einstein’s Theory of Relativity was built on the research and ideas of other scientists. The Theory of Relativity proposes that the speed of light is a constant.Which of the following statements explains why this is considered to be a scientific theory?

Scientists believe it is the best explanation because it is built on data and observations.

The majority of the scientific community voted on this theory over other possible explanations.

It is the best explanation because it supports the beliefs and opinions of most scientists.

It is a scientific law that has been supported by experimental data.

Answers

Einstein’s Theory of Relativity was built on the research and ideas of other scientists. The Theory of Relativity proposes that the speed of light is aconstant. The statement that explains why this is considered to be a scientific theory is that the majority of the scientific community voted on this theory over other possible explanations.

Answer:

The correct answer will be option-It is the best explanation because it supports the beliefs and opinions of most scientists.

Explanation:

Albert Einstein is known for his theory of relativity which states that energy is a converted form of mass to the square of the speed of light which is constant.

Albert Einstein was a theoretical physicist who used the facts and data from the papers of the previous physicist. Although he used the facts his theory became one of the important theory in the physics world as it explained the path of the light and the form in which it travels.

This theory is well accepted today as it was supported by the experiments and observation of the other works of different scientist. This led to the acceptance of the theory worldwide.

Thus, the selected option is the correct answer.

What is the correct way to represent 5600 L using scientific notation?–5.6 mc031-1.jpg 103 L
–5.6 mc031-2.jpg 10–3 L
5.6 mc031-3.jpg 10–3 L
5.6 mc031-4.jpg 103 L

Answers

To answer this you first must know that the value before the x10^n must be below 10 and equal or greater than 1. All the choices are valid with respect to this law. Next, 5600L is positive canceling the first 2 choices. The last value is the answer since multiplying a value with 10^3 makes a larger number or moves the decimal place to the right 3 places.

The correct way to represent 5600 L using scientific notation is written as 5.6 x 10³ L.

What is Scientific notation?

Scientific notation or standard form is method of representing large numbers in more condensed form using power of ten.

The correct way to represent 5600 L using scientific notation is written as follows;

5600 L = 5.6 x 10³ L

Thus, the correct way to represent 5600 L using scientific notation is written as 5.6 x 10³ L.

Learn more about scientific notation here:brainly.com/question/325572

Which words list the correct order of activated neurons in a reflex arc?

Answers

Here is the correct order of activated in a reflex arc.
(1) Receptor: where stimulus action is.
(2) Sensory Neuron: responisble of transmitting afferent impulses to the central nervous system.
(3) Integration Center: Sensory impulse to motor impulse; Direct (monosynaptic) or polysynaptic region in CNS.
(4) Motor Neuron: Efferent impulses from integration center to effector.
(5) Effector: Muscle fiber or gland cell that responds to the efferent impulses.

Answer:

1. Receptor: where stimulus action is.

2. Sensory Neuron: responsible of transmitting afferent impulses to the central nervous system.

3. Integration Center: Sensory impulse to motor impulse; Direct (monosynaptic) or polysynaptic region in CNS.

4. Motor Neuron: Efferent impulses from integration center to effector.

5. Effector: Muscle fiber or gland cell that responds to the efferent impulses.

B. receptor, sensory, interneuron, motor, effector

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