Perform the following
mathematical operation, and
report the answer to the
appropriate number of
significant figures.
0.00325136 - 1.76527 =

Answer: (Q1) B.      (Q2)  D.    (Q3) B. I believe   (Q4) C.

Explanation: (Q3) B the medulla isn't playing a physical part in digestion as much as it controls the process this is a educated guess  

Answer:

The correct answer is A.

529.6 g Cd₃N₂

Math

Pre-Algebra

Order of Operations: BPEMDAS

Chemistry

Atomic Structure

Step 1: Define

1.450 mol Cd₃N₂

Step 2: Identify Conversions

Molar Mass of Cd - 112.41 g/mol

Molar Mass of N - 14.01 g/mol

Molar Mass of Cd₃N₂ - 3(112.41) + 2(14.01) = 365.25 g/mol

Step 3: Convert

\(\displaystyle 1.450 \ mol \ Cd_3N_2(\frac{365.25 \ g \ Cd_3N_2}{1 \ mol \ Cd_3N_2} ) = 529.613 \ g \ Cd_3N_2\)

Step 4: Check

Follow sig fig rules and round. We are given 4 sig figs.

529.613 g Cd₃N₂ ≈ 529.6 g Cd₃N₂

Answer:

529.6 g

Explanation:

i took the test

Answer:

sugar-water is a mixture not a compound.(homogeneous mixture.)

Explanation:

Compounds are substances formed by the chemical combination of two or more elements. Mixtures are substances formed by physically mixing two or more substances together.

The solution of sugar in water is considered a mixture not a compound because the particles of sugar and water are not completely dissolve nor mixed in a fixed proportion or ratio. hope this helped :)

Whales emit sound waves to communicate in water, therefore, water is the medium for sound waves that bounce off from the other species and objects in water and develop echolocation. Therefore, option (1) is correct.

Sound can be transmitted through gases, liquids, and plasma as longitudinal waves, also known as compression waves. It needs a medium to propagate. Through solids, they can be propagated as both longitudinal waves and transverse waves.

Longitudinal sound waves have alternating pressure deviations from the equilibrium pressure, causing compression and rarefaction, while transverse waves have waves of alternating shear stress at the right angle to the direction of propagation.

The energy carried by sound waves changes back and forth between the potential energy of the extra compression or lateral displacement strain in the case of transverse waves of the matter and the kinetic energy of particles of the medium.

Therefore, the water is medium for the sound waves produced by whales to communicate.

Learn more about sound waves, here:

https://brainly.com/question/21995826

#SPJ2

Answer:

Environmental and economic benefits of using renewable energy include: Generating energy that produces no greenhouse gas emissions from fossil fuels and reduces some types of air pollution. Diversifying energy supply and reducing dependence on imported fuels.

Explanation:

Answer:

b

Explanation:

Knowing the concentration of solutions is important in the real world for several reasons. Firstly, concentration provides information about the amount of solute present in a given volume of solvent, which is crucial for various scientific, industrial, and medical applications. Here's an example to illustrate the significance of concentration:

In the field of medicine, determining the concentration of drugs in pharmaceutical solutions is essential for accurate dosing and patient safety. Healthcare professionals need to know the concentration of active ingredients in medications to prescribe the appropriate dosage for patients. For instance, consider a situation where a doctor needs to administer a specific amount of a medication to a patient. Without knowing the concentration of the drug in the solution, it would be challenging to determine the correct volume of the solution needed to deliver the desired dosage. Incorrect concentrations or dosages can lead to ineffective treatment or even harmful side effects for the patient.

Additionally, concentration measurements play a vital role in environmental monitoring and analysis. For example, in water quality assessment, measuring the concentration of pollutants or dissolved substances in bodies of water helps identify potential contamination and evaluate the health of aquatic ecosystems. By monitoring the concentration of contaminants such as heavy metals or nutrients, environmental scientists can determine the impact on aquatic life and implement appropriate measures for pollution control and remediation.

Overall, understanding the concentration of solutions is crucial for a wide range of practical applications, including pharmaceuticals, environmental analysis, chemical manufacturing, food and beverage production, and many others. Accurate concentration measurements enable informed decision-making, quality control, and precise formulation, ensuring the effectiveness and safety of various products and processes in the real world.

Answer:

8.47 x 10^3

Explanation:

So since we only want 3 sig figs we have to round our last digit up and then it is 10^3 because we moved the decimal place to the left 3 times to get 8.47

Comment if you have any other sig fig questions, happy to answer them!

Answer: freezing point is 1,085

Explanation:

Answer:

hmm mm?mmmmmmmmmmmmm

Answer:

n-3+5>4

n>4+3-5

n>2

I think

Answer:

No, a plastic wire would not conduct electricity. This is because plastic is an insulator that does not allow electric current to flow through it. In a wire, electrical conductivity is provided by the movement of charged particles - typically, electrons. Copper is an excellent conductor of electricity because it has a high number of free electrons that are not bound to atoms and can move through the wire very easily. However, in a plastic wire, the tightly bound electrons of its atoms do not allow for the free flow of charges, thus preventing the passage of electric current.

Answer/Explanation:

Refer to picture below

Kavinsky

Answer/Explanation:

Picture below

Answer:

The answer is C.

Explanation:

Please give brainliest

Answer:

D

Explanation:

complex, in chemistry, a substance, either an ion or an electrically neutral molecule, formed by the union of simpler substances (as compounds or ions) and held together by forces that are chemical (i.e., dependent on specific properties of particular atomic structures) rather than physical.

Answer: Oxygen

Explanation:

Oxygen is not a good conductor, it is brittle, and has no luster.

Answer:

A

Explanation:

Food is digested in the stomach for several hours. During this time, a stomach enzyme called pepsin breaks down most of the protein in the food. The pancreas and gland cells of the small intestine secrete digestive enzymes that chemically break down complex food molecules into simpler ones.

Answer:

A

Explanation:

Answer:

A stimulus is anything that can trigger a physical or behavioral change.

Answer:

c

Explanation:

While standing water in the streets and sewers (option A) and poor water quality in rivers and streams (option D) may persist for some time after the flood, they are generally considered short-term changes as they can eventually be remedied through clean-up efforts and restoration programs.

Temporary displacement of organisms (option B) can also be considered a short-term change, as organisms will eventually return to their original habitats once conditions improve.

However, a permanent change in the landscape (option C) such as altered river channels, new water bodies, or changes in topography, can have lasting effects on the ecosystem and its inhabitants. These changes may alter habitat suitability, nutrient cycling, and water availability, which can impact the ecosystem for years or even decades to come.

Answer: C

Explanation:

The landscape could be flooded. Houses and buildings may be restricted.

Answer:  1.5

Explanation:

The pH of a solution is given by the formular; pH = - log [ H+ ]. Therefore, for  H2SO4, it is;

pH = - log [ 3 x 10 ∧ -2]

     =  2   - log 3

     =  2 - 0.4771 = 1.5 approximately

To prepare 250 mL of a D10/NS solution using D10W and a vial of NaCl 4 mEq/mL, you would need 9.6 mL of NaCl. Normal saline (NS) contains 154 mEq/L of sodium chloride (NaCl). To prepare 250 mL of NS, you would need 250 mL * (154 mEq/L) = 38500 mEq of NaCl. Since the vial of NaCl contains 4 mEq/mL, you would need 38500 mEq / (4 mEq/mL) = 9625 mL = 9.6 mL of NaCl. So the correct answer is b. 9.6ml.

Answer:

STUPendies!!!!

Explanation:

Answer:

CH4 + 2O2 → CO2 + 2H2O

Explanation: Hope this helps you.

In mathematics, an ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant. As such, it generalizes a circle, which is the special type of ellipse in which the two focal points are the same.

Maybe they might use that math thing for Science.