A pregnant client experienced preterm labor at 30 weeks gestation. Upon assessing the client the nurse finds that the newborn is at risk of having cerebral palsy. Which medication administration should the nurse perform to prevent cerebral palsy in the newborn?
A. Calcium gluconate.
B. Magnesium sulfate.
C. Glucocorticoid drugs.
D. Antibiotic medications

Answer:

\(0.48~\frac{J}{g~^{\circ}C}\)

Explanation:

In this question, we have to remember the relationship between Q (heat) and the specific heat (Cp) the change in temperature (ΔT), and the mass (m).

\(Q=m*Cp*ΔT\)

The next step is to identify what values we have:

\(Q~=~1870~J\)

\(m~=~85.01~g\)

\(ΔT~=~45.2~^{\circ}C\)

\(Cp~=~X\)

Now, we can plug the values and solve for "Cp":

\(1870~J=~85.01~g~*Cp*45.2~^{\circ}C\)

\(Cp=\frac{1870~J}{85.01~g~*45.2~^{\circ}C}\)

\(Cp=0.48~\frac{J}{g~^{\circ}C}\)

The unknow metal it has a specific value of \(0.48~\frac{J}{g~^{\circ}C}\)

I hope it helps!

Answer:

Protons and Neutrons

Explanation:

Answer:

i think its protons neutrons and electrons

The volume of air you might inhale (and exhale) in 8.00 hours is approximately 1903.2 liters.

To calculate the volume of air you might inhale (and exhale) in 8.00 hours, we need to determine the total number of breaths you take in that time and then multiply it by the volume of each breath.

First, let's calculate the number of breaths in 8.00 hours:

Number of breaths per minute = 13

Number of breaths per hour = 13 breaths/minute * 60 minutes/hour = 780 breaths/hour

Number of breaths in 8.00 hours = 780 breaths/hour * 8.00 hours = 6240 breaths

Now, let's calculate the volume of air in liters:

Volume of each breath = 0.305 liters

Volume of air inhaled and exhaled in 8.00 hours = Volume of each breath * Number of breaths in 8.00 hours

Volume of air inhaled and exhaled in 8.00 hours = 0.305 liters/breath * 6240 breaths = 1903.2 liters

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Ions can travel directly from the cytoplasm of one animal cell to the cytoplasm of an adjacent cell through  gap junctions.

Cytoplasm is the gelatinous liquid that fills the inside of a cell.

The cytoplasm is composed of water, salts, and various organic molecules. Some intracellular organelles, such the nucleus and mitochondria, are enclosed by membranes that separate them from the cytoplasm.

The cytoplasm has the following functions :

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The magnetic quantum number (ml) represents the orientation of the orbital in three-dimensional space the only possible value of the magnetic quantum number ml for a 1s electron is 0.

Quantum is the smallest possible unit of a physical quantity, such as energy or momentum. It is a fundamental concept in quantum mechanics, which is the branch of physics that deals with the behavior of matter and energy at the atomic and subatomic level.

The idea of quantization was first proposed by Max Planck in 1900, when he discovered that energy is emitted and absorbed in discrete units called "quanta" when studying the behavior of light and blackbody radiation. Later, this idea was extended to other physical quantities, such as the momentum and position of particles.

According to quantum mechanics, the behavior of particles and systems cannot be fully described using classical mechanics, which assumes that particles have definite positions and velocities at all times. Instead, the behavior of particles and systems is described using wave functions, which represent the probability of finding a particle at a given position and time.

The principles of quantum mechanics have important applications in many areas of physics, including atomic and molecular physics, condensed matter physics, and particle physics. They are also the basis.

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Answer:

The percentage composition of aconitine would be: C 63.24%, H 7.34%, N 2.17%, O 27.25%

Explanation:

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Answer:

c, 160 grams

Explanation:

Paramecia sweep food into mouthlike openings and a pine tree carriers out photosynthesis. These describe a way that an other-feeder gets food. The correct option is option B,D.

Filter feeders are a subclass of animals that eat by sifting food particles and suspended materials from water, often by running the water through a specially designed filtering apparatus. Baleen whales, clams, krill, sponges, various fish (including some sharks), and krill are just a few species that adopt this technique of eating. Paramecia sweep food into mouthlike openings and a pine tree carriers out photosynthesis. These describe a way that an other-feeder gets food.

Therefore, the correct option is option B,D.

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Answer:

C

Explanation:

is this one ok? XD

Answer:bromine , neon , helium , argon , lithium , beryllium

Explanation:

Elements can be divided into three state that are solid, liquid and gas depending the intermolecular forces of attraction, distance between the particles etc. Lithium, beryllium, boron, carbon, sodium, magnesium, iron, copper, etc. are solid at room temperature.

Element generally consist of atoms or we can atoms combine to form element. Atoms of an element is always same, means all the properties of all atoms of one type of element is same.

Two or more than two atoms with different physical or chemical properties can not combine together to form an element. Elements can be solid liquid or gas at room temperature.

Therefore,  Lithium, beryllium, boron, carbon, sodium, magnesium, iron, copper, etc. are solid at room temperature.

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Step 1

Data provided:

The reaction: 4Al + 3O2 => 2Al2O3 (balanced)

The limiting reactant Al (it is said that Al reacts completely)

Mass of Al = 42.6 g

The actual yield = 57.8 g Al2O3

-----------------------

Step 2

Data needed: the molar mass of Al (26.9 g/mol) and Al2O3 (101.9 g/mol)

The theoretical yield:

4 x 26.9 g Al ------- 2 x 101.9 g Al2O3

42.6 g Al ------- X = 80.7 g Al2O3 = theoretical yield

---------------------

Step 3

% yield = (actual yield/theoretical yield) x 100 = (57.8 g/80.7 g) x 100 = 71.6 %

(this is the closest value for one of the options, 71.8 %)

Answer: 71.8 %

The balanced equation for the reaction between \(Fe^+^2\) and KMnO₄ is: MnO₄ + 8H+ + 5 \(Fe^+^2\)⟶ \(Mn^+^2\) + 5\(Fe^3^+\) + 4H₂O. Therefore, the percentage by weight of iron in the steel sample is 1.94%.

Molarity of KMnO₄ = 0.110 M, Volume of KMnO₄ used = 39.23 mL = 0.03923 L

moles of  \(Fe^+^2\) = 0.110 M x 0.03923 L / 5 = 0.000856 moles

The mass of iron in the steel sample can be calculated from the number of moles of  \(Fe^+^2\):

moles of Fe = 0.000856 moles  \(Fe^+^2\) x 1 mole Fe / 1 mole  \(Fe^+^2\)

= 0.000856 moles Fe

The mass of Fe can be calculated from the number of moles of Fe:

mass of Fe = 0.000856 moles Fe x 55.85 g/mol = 0.0479 g Fe

Finally, the percentage by weight of iron in the steel sample can be calculated as:

% Fe = (mass of Fe / mass of steel sample) x 100%

mass of steel sample = 2.470 g

% Fe = (0.0479 g / 2.470 g) x 100% = 1.94%

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Answer:

FeO

Explanation:

The balanced reaction equation is

MnO−4(aq)+5Fe2+(aq)→ Mn2+(aq)+5Fe3+(aq)

Number of moles of KMnO4 reacted = 0.01621 M × 42.17/1000 = 6.84 × 10^-4 moles

Since

1 mole of MnO4^- reacted with 5 moles of Fe^2+

6.84 × 10^-4 moles of MnO4 will react with 6.84 × 10^-4 moles × 5 = 34.2 × 10^-4 moles of Fe^2+

Mass of Fe^2+ reacted = 34.2 × 10^-4 moles of Fe^2+ × 56gmol-1 = 0.192 g of Fe

Hence % of iron in the sample = 0.192/0.2729 × 100 = 70.4%

% of oxygen = (0.2729 -0.192)/0.2729 × 100 = 29.6%

Empirical formula of the compound is obtained by

70.4/56, 29.6/16

1.257, 1.85

Divide through by the lowest ratio

1.257/1.257, 1.85/1.257

1, 1

Hence the empirical formula is FeO

Taking into account the reaction stoichiometry, 0.886 grams of O₂ can be prepared by the decomposition of 12 grams of mercury oxide.

In first place, the balanced reaction of the decomposition of mercury oxide is:

2 HgO  → 2 Hg + O₂

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

The molar mass of the compounds is:

Then, by reaction stoichiometry, the following mass quantities of each compound participate in the reaction:

HgO: 2 moles ×216.59 g/mole= 433.18 grams

Hg: 2 moles ×200.59 g/mole= 401.18 grams

O₂: 1 mole ×32 g/mole= 32 grams

The following rule of three can be applied: if by reaction stoichiometry 433.18 grams of HgO form 32 grams of O₂, 12 grams of HgO form how much mass of O₂?

\(mass of O_{2} =\frac{12 grams of HgOx 32 grams of O_{2}}{433.18 grams of HgO}\)

mass of O₂= 0.886 grams

Then, 0.886 grams of O₂ can be prepared by the decomposition of 12 grams of mercury oxide.

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Explanation:

To calculate the heat gained by nickel, we can use the formula:

q = m * c * ΔT

where q is the heat gained, m is the mass of the nickel, c is the specific heat of nickel, and ΔT is the change in temperature.

Given:

- Mass of nickel, m = 31.4 g

- Specific heat of nickel, c = 0.443 J/g · °C

- Change in temperature, ΔT = 64.2 °C - 27.2 °C = 37.0 °C

Substituting the values into the formula, we get:

q = (31.4 g) * (0.443 J/g · °C) * (37.0 °C)

Simplifying the calculation, we get:

q = 584 J

Therefore, the heat gained by nickel when 31.4 g of nickel is warmed from 27.2 °C to 64.2 °C is 584 J.

Answer:

See the answer below

Explanation:

If the root of a plant grows away from the pull of earth's gravity, it will not produce any effect on the plant provided that other conditions of growth are kept normal.

According to research, the force of the Earth's gravity has no effect on the growth features of plants. Plants that were grown away from the influence of gravity still grew normally in a research conducted in space by NASA in 2010.

This thus means that the upward growth of the stem and the downward growth of the root in a negative and positive response to gravity respectively  is dictated by the inherent attributes of plants themselves, and not by the force of the earth's gravity.

Answer:

1.80 g (grams) of glucose.

Explanation:

First, we dissolve 20.0 g of glucose in a volume of water of 100 mL (0.1 L), so let's calculate the concentration of glucose in g/L, like this:

Now, we take 45 mL (0.045 L) of this solution that contains a concentration of glucose of 200 g/L to create a new solution with 0.500 L.

From this new solution, we have to find the mass of glucose if we took 100 mL (0.1 L) of this solution, so we have to use the following equation:

Where C is concentration, V is volume, and subindex 1 and 2 indicate the initial solution, which in this case, is C1 = 200 g/L, V1 = 0.045 L, and the final solution with unknown concentration (C2) and a volume of V2 = 0.500 L.

Let's solve for C2 and replace the given data to obtain the new concentration (final concentration) of the new solution of 0.500 L, like this:

The final concentration of glucose in 0.500 L would be 18.0 g/L.

The next and final step is to calculate the total mass using the volume that we took from the 0.500 L solution, which is 100.0 mL (0.1 L). To do this, we have to do a dimensional analysis to obtain the answer in units of grams, so the calculation will look like this:

The answer would be that we have 1.80 g (grams) of glucose in 100 mL from the 0.500 L solution.

Answer:

The two objects have different volumes.

Explanation:

The density of an object measures how closely packed the mass in the object is. Density of an object is obtained by taking the ratio of the mass of an object and its volume.

Density = mass/volume

The mass present in an object is constant, but the volume may vary with temperature. The volume of substances generally increases with temperature, therefore, density decreases with increase in volume.

Two objects at the same temperature having equal masses may or may not have the same density depending on the volume each object occupy.

If two substances are at the same temperature and have equal masses but different densities, then they must have different volumes.

A weather front is a transition zone between two different air masses at the Earth's surface. Each air mass has unique temperature and humidity characteristics. Often there is turbulence at a front, which is the borderline where two different air masses come together. The turbulence can cause clouds and storms.

Answer:

Disease ranching

Explanation:

Floods and Droughts are caused by the enviorment. Diseases are but a product and don't  affect the enviorment.

Answer:

disease ranching is not a natural change to the environment .

Explanation:

This all happen because of human activities

Answer:

increases reaction rates

Explanation:

Increasing the temperature increases reaction rates because of the disproportionately large increase in the number of high energy collisions. It is only these collisions (possessing at least the activation energy for the reaction) which result in a reaction.

Answer:

Between 4s and 3s orbital , 3s has more energy .

Explanation:

According to the rule , the lower the value of (n+l) for an orbital , the lower is it's energy . And if two orbitals have the same value of (n+l), the orbital with lower value of n will have the lower energy .

The statement " for all atoms of the same element the 4s orbital is larger than the 3s orbital" is definitely true.

An element may be defined as a type of substance that significantly cannot be dilapidated into simpler components by any non-nuclear chemical reaction. It is a type of chemical substance that bears unique properties based on numerous attributes.

The 4s orbital is the outermost and highest energy orbital, as compared to the 3s orbital. The 4s orbital penetrates more into the nucleus. This is because the s-orbital has the highest penetrating effect as compared to other orbitals.

The size of the 4s orbital is usually larger than the 3s orbital for all the atoms of the same element. This is because the electrons are filled in these orbitals systematically in the order s, p, d, and f. In the s-orbital first, 1s, 2s, 3s, 4s, and so on depending on the atomic number of the atom or element.

Therefore, the statement " for all atoms of the same element the 4s orbital is larger than the 3s orbital" is definitely true.

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Answer:

Ecell = +0.25V

Explanation:

the half-cell reactions for a voltanic cell

cathode(reduction): 2H⁺(aq) + 2e⁻ ------- H₂(g)

anode(oxidation): 2AgCl(s) ------- 2Ag⁺(aq) + 2Cl⁻ + 2e⁻

we have the standard cell potential E⁺cell = 0.18V at 80C respectively

Q = [H⁺]/[Cl⁻]

sub for [H+] = 0.10M and [Cl-] = 1.5M

Q= 0.1M/1.5M

Q = 0.067

Ecell = E⁺cell - \(\frac{0.059}{n}\) logQ

= 0.18 - \(\frac{0.056}{1}\) log 0.067

0.18- 0.059(-1.174)

Ecell = +0.25V

Answer:

I am pretty sure it is the first answer I might be wrong though

Explanation:

The formation at the uppermost part of this Colorado River Basin formation

are tectonic uplifts as a result of the exposure of the rocks present in the

area.

It stretches as far as 100 miles and is located in two parks known as

The layers from the Mesozoic and Cenozoic Eras are not present in the

layers seen at the Grand Canyon as a result of new rocks being formed on

top of the eroded ones over time.

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