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3 years ago

Which of the following shows the path followed by nerve impulses in a reflex?

Chemistry

2 answers:

Anastasy [175]3 years ago

5 0

D. sensory neurons-> interneurons in spinal cord-> motor neurons. I did my research

lana [24]3 years ago

4 0

<h2>Nerve Impluses In a Reflex - Option C </h2>

Sensory neurons, interneurons in spinal cord, motor neurons shows the path followed by nerve impulses in a reflex. Sensory neurons are the neurons that carry information from the environment externally to the central nervous system (CNS) mainly brain and motor neurons are those which carry information from CNS to other parts.

A human perceives something then by sensory neurons the information goes to CNS and that information is further passed by interneurons in spinal cord and is further passed by motor neurons from CNS to other parts to perform stimulus of perception.

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What is the volume of a liquid that has a density 3.65g/ml and a mass of 5.61g

Lorico [155]

Answer:

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

$volume = \frac{mass}{density} \\$

From the question we have

$volume = \frac{5.61}{3.65} \\ =1.536986...$

We have the final answer as

Hope this helps you

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3 years ago

Because the hot air balloon is _____ than the surrounding air, it will

Tema [17]

A
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3 years ago

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An element has an average atomic mass of 1.008 amu. It consists of two isotopes , one having a mass of 1.007 amu, and one having

dimulka [17.4K]

Answer:

The most abundant isotope is 1.007 amu.

Explanation:

Given data:

Average atomic mass = 1.008 amu

Mass of first isotope = 1.007 amu

Mass of 2nd isotope = 2.014 amu

Most abundant isotope = ?

Solution:

First of all we will set the fraction for both isotopes

X for the isotopes having mass 2.014 amu

1-x for isotopes having mass 1.007 amu

The average atomic mass is 1.008 amu

we will use the following equation,

2.014x + 1.007 (1-x) = 1.008

2.014x + 1.007 - 1.007 x = 1.008

2.014x - 1.007x = 1.008 - 1.007

1.007 x = 0.001

x= 0.001/ 1.007

x= 0.0009

0.0009 × 100 = 0.09 %

0.09 % is abundance of isotope having mass 2.014 amu because we solve the fraction x.

now we will calculate the abundance of second isotope.

(1-x)

1-0.0009 = 0.9991

0.9991 × 100= 99.91%

6 0

3 years ago

C3H8 (g) + O2(g) → CO2 (g) + H2O(g)

lorasvet [3.4K]

Answer:

11.55 mol ≈ 11.6 mol CO2

Explanation:

C3H8 (g) + 5O2(g) → 3CO2 (g) + 4H2O(g)

from reaction 1 mol 3 mol

given 3.85 mol x mol

Solving proportion

x =(3.85*3)/1 = 11.55 mol ≈11.6 mol

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3 years ago

How many grams of magnesium chloride can be produced if we react 32.50 g Mg with 32.50 g HCl

daser333 [38]

First, you will have to write out and balance the equation, so:

Because we’re looking at a single element reacting with an acid, we know that the reaction must be a single replacement.

Mg + HCl —-> MgCl2 + H2

We use H2, because hydrogen can only exist by itself when covalently bonded to itself, in a diatomic state.
Mg has an oxidation state of +2, while Cl has an oxidation state of -1. Therefore, you need 2 Cl to cancel the charge fully.

Now it needs to be balanced, so you get:

Mg + 2HCl —-> MgCl2 + H2

Now we have molar ratios to do our conversions

So we’ll use stoichiometry to find the theoretical yield for both reactants, and whichever one is the LEAST is the answer.

(32.5g Mg) (1mol/24.3g) (1mol MgCl2/1 mol Mg) (95.3g/1 mol MgCl2) = 127.5g

(32.5g HCl) (1mol/36.5) (1mol MgCl2/2mol HCl) (95.3g/1 mol MgCl2) = 42.4g

So, you will get 42.4 g of MgCl2

6 0

4 years ago