Solid aluminum carbide reacts with water to produce methane gas and solu
hydroxide. During an investigation, a student wrote the following equation to the reaction as
shown below.
reactant
Product
+ 4Al(OH)3(9)!
Tiquid
Claim - Evidence
Reasoning
Use the law of conservation of mass to explain whether or not the equation is correctly
balanced. Use claim, evidence, and reasoning to support your answer.
A14C3(s) + 6H20(1) -3CH2(9)
gas
Solid
1. Write a statement explaining your claim about whether or not the equation is correctly
balanced. Then, provide evidence that supports your claim about whether or not the
equation is correctly balanced. Next, connect your evidence to your claim about the
equation.

The combination of ion movements across the myocardial cell membrane in absence of digoxin treatment is D. 3 \( {Na}^{+} \) out; 2 \( {K}^{+} \) in.

The \( {Na}^{+} \) represents sodium ions and \( {K}^{+} \) represents potassium ions. The resting potential witnesses high sodium ion concentration outside and high potassium ion concentration inside the cell.

It is maintained through expense of one ATP that allows passage of ions through transporter protein. Digoxin increases contractility by increasing sodium and calcium ion concentration thus treating the cardiac associated medical condition.

Learn more about digoxin -

https://brainly.com/question/13033888

#SPJ4

Answer:

Mass = 75.6 g

Explanation:

Given data:

Temperature of gas = 17°C

Volume of gas = 575 mL

Pressure of gas = 85000 mmHg

Mass of gas = ?

Solution:

Temperature of gas = 17°C (17+273 =290 K)

Volume of gas = 575 mL (575/1000 = 0.575 L)

Pressure of gas = 85000 mmHg (85000/760 = 111.8 atm)

Formula:

PV = nRT

P= Pressure

V = volume

n = number of moles

R = general gas constant = 0.0821 atm.L/ mol.K  

T = temperature in kelvin

111.8 atm × 0.575 L = n×0.0821 atm.L/ mol.K  × 290 K

64.285 atm. L = n×23.809 atm.L/ mol

n =  64.285 atm. L / 23.809 atm.L/ mol

n = 2.7 mol

Mass of nitrogen gas:

Mass = number of moles × molar mass

Mass = 2.7 mol × 28 g/mol

Mass = 75.6 g

Answer:

All living organisms are made up of one or more cells, which are considered the fundamental units of life. Even unicellular organisms are complex! Inside each cell, atoms make up molecules, which make up cell organelles and structures. In multicellular organisms, similar cells form tissues.

Explanation:

Answer:

All living organisms are composed of one or more cell

Explanation:

hope this helps, please mark brainliest

After the refrigerant liquid has been recovered from the appliance, any remaining vapor is removed by the recovery system. Hence option D is correct.

The recovery system uses a vacuum pump to draw out the vapor and store it in a recovery cylinder. The recovery cylinder is then transported to a facility where the refrigerant can be recycled or disposed of properly.

Purgaing the vapor into the atmosphere is not an option, as it would release harmful greenhouse gases into the environment. Isolating the vapor in the appliance would not be effective, as the vapor would eventually escape.

Pumping the vapor into the appliance receiver would also not be effective, as the receiver is not designed to hold vapor.

Therefore, option D is correct.

To know more about vacuum pumps:

https://brainly.com/question/2088369

#SPJ12

Answer:

2c2h2+502=4co2+H2O

Explanation:

this is the answer

There are number of  moles of alpha-pinene oxide in 0.25 mL.

To determine the number of moles of alpha-pinene oxide in 0.25 mL, we need to know the density and molecular weight of alpha-pinene oxide.
Density of alpha-pinene oxide = 0.926 g/mL
The molecular weight of alpha-pinene oxide = 152.24 g/mol

First, we need to convert the volume from mL to L:

0.25 mL = 0.00025 L

Next, we can use the density to find the mass of alpha-pinene oxide in 0.25 mL:

Mass = Volume × Density
Mass = 0.00025 L × 0.926 g/mL
Mass = 0.0002315 g

Finally, we can use the molecular weight to find the number of moles:

Moles = Mass / Molecular Weight
Moles = 0.0002315 g / 152.24 g/mol
Moles = \(1.52 \times 10^{-6} mol\)
To learn more about  Number of  moles :

https://brainly.com/question/13314627

#SPJ11

Insufficient details to answer if the temperature doesn't change, what happens to the pressure inside the container. The answer is option (a).

The concept of pressure, which defines the amount of force delivered across a specific region, is crucial to physical theory. It is related to the concept of force, which describes how much pressure is applied to or removed from an object. Units of force per unit area are used to measure pressure, such as pounds per square inch (psi) or pascals (Pa). It has just magnitude and no direction because it is scalar.

Compression, tension, and shear are a few of the different methods used to create pressure. Fluid dynamics can also be measured using pressure, as in the case of a barometer. Numerous commonplace uses of pressure include water management, engineering of vehicles and aircraft, and medical procedures. Additionally crucial to understanding how people behave is pressure.

To learn more about pressure, visit:

brainly.com/question/24719118

#SPJ1

A chemical reaction has a Q10 of 3 option  c. a rate of 9 at 20°C and 3 at 30°C is the rates that characterizes this reaction

The Q10 value is a measure of how much the rate of a chemical reaction changes with a 10°C change in temperature. A Q10 of 3 indicates that the rate of the reaction will increase by a factor of 3 when the temperature is raised by 10°C.

Looking at the answer choices, we can see that option a and b have a Q10 value of 2, which is not the same as the given Q10 value of 3. Option e has a Q10 value of 4, which is also not the same.

Option d has a Q10 value of 3, but the rates given are at 20°C and 40°C, which is not a 10°C change in temperature.

Therefore, the only option that fits the given Q10 value and has rates that are 10°C apart is option c, which has a rate of 9 at 20°C and 3 at 30°C. Therefore, the answer is c.

To learn more about chemical reaction click here

brainly.com/question/29762834

#SPJ11

Option c states that the rate of the reaction is 9 at 20°C and 3 at 30°C. The ratio of rates between 20°C and 30°C is 9/3 = 3, which matches the Q10 value of 3.  

c. a rate of 9 at 20°C and 3 at 30°C

The Q10 value is a measure of the temperature sensitivity of a reaction, and it is defined as the factor by which the rate of a reaction changes for every 10-degree Celsius change in temperature. A Q10 value of 3 indicates that the rate of the reaction increases by a factor of 3 for every 10-degree Celsius increase in temperature.

This means that the rate of the chemical  reaction is consistent with the temperature sensitivity indicated by the given Q10 value, making option c the correct answer.

Learn more about “ chemical reaction “ visit here;

https://brainly.com/question/29039149

#SPJ4

Answer:

Explanation:

The density of a substance can be found by using the formula

\(density = \frac{mass}{volume} \\ \)

From the question we have

\(density = \frac{0.256}{100} \\ \)

We have the final answer as

Hope this helps you

Answer:

Try everything

1. How many moles of nitrogen gas are in 1.54x10^26 molecules? How many atoms?

2. How many molecules of water are in 3.45 moles of water?

3. How many atoms of C are in 2.00 moles of Cv6Hv12Ov6? (v means the number is below)

Explanation:

The pressure of the H2S gas in the container would be 0.784 atm. The first step in solving this problem is to calculate the amount of Ag2S that was removed from the spoon during the reaction.

We can do this by subtracting the mass of the untarnished spoon from the mass of the tarnished spoon:

683.90 g - 677.29 g = 6.61 g

Next, we need to determine how many moles of Ag2S were removed. We can do this by dividing the mass of Ag2S by its molar mass:

6.61 g / (2 × 107.87 g/mol + 32.06 g/mol) = 0.0294 mol Ag2S

Since the reaction produces 3 moles of \(H_2S\) for every 3 moles of Ag2S, we can use the same number of moles for \(H_2S\):

0.0294 mol Ag2S × (3 mol H2S / 3 mol Ag2S) = 0.0294 mol H2S

Now we can use the ideal gas law to calculate the pressure of the \(H_2S\) gas:

\(PV = nRT\\P = (nRT) / V\\P = (0.0294 mol *0.0821 L atm / mol K *304.65 K) / 0.950 L\\P = 0.784 atm\)

Therefore, the pressure of the \(H_2S\) gas in the container would be 0.784 atm.

For more about pressure:

https://brainly.com/question/12971272

#SPJ11

Answer:

Sun, water, caron dioxide.

Explanation:

They get there energy from those because photosynthesis the sun gives them that energy but the sun goes with water too because the sun and the water help it eat and produce its food and then the carbon is for it to breathe and thats how we have oxygen because the plants take in carbon and then they give out oxygen so thats why we need plants and plants need us.

Can i be brainliest.

Waves interact with matter and other waves.

Explanation-  

Waves are defined as the propagation of disturbances from one place to another place, which is typically characterized by the periodic variation of some property of the medium.

Waves have the ability to move through solid objects and can interact with the material through which they pass.

The energy from a wave can be absorbed by a material causing a transfer of energy from the wave to the matter.

When waves interact with matter, they may undergo reflection, refraction, diffraction, absorption, and transmission. Waves can interact with other waves as well.

For instance, when two or more waves meet, they can interfere with one another. This can result in the creation of new waves or the cancellation of existing waves, depending on the nature of the interaction.

#SPJ11

To learn more about wave interaction, visit the link given below-

https://brainly.com/question/20471838

Answer

a) Ba

b) Si

c) Zn

Explanation

The presence of unpaired electrons in an atom orbitals indicates paramagnetic properties. When no unpaired electron is observed in an atom orbitals, such an atom possesses diamagnetic properties.

Therefore, atoms in their ground states that are expected to be diamagnetic in the options are:

a) Ba

b) Si

c) Zn

Answer:

b

Explanation:

i took the quiz

After 24 days, you will have 1/2 kg

It's a common occurrence for radioactive isotopes to spontaneously decay over time, shedding their radioactive atoms. The period of time it takes for any sample of an element to be reduced to half its initial amount is known as the half-life of a radioactive isotope. The differential equation

dNdt=kN(t)

describes the decay of such radioactive isotopes, where N(t) is the number of radioactive atoms of the element that are still present at time t and k is the decay constant.

The solution to the aforementioned differential equation is N(t) = N (0)ekt, where N (0) is the initial sample's initial number of atoms.

Keep in mind that the natural logarithm has the identity

a ln n=a ln n.

Learn more about radioactive here-

https://brainly.com/question/1770619

#SPJ9

Answer:

The total energy reaction would be -698 kJ/mol.

Explanation:

The formula to calculate the enthalpy change of a reaction is the following:

Let's calculate the bond energy for each reactant:

- CH4: As we have 4 bonds of H - C, the bond energy is 4 x 412 kJ/mol = 1648 kJ/mol.

- O2: As we have 1 bond of O = O, but we have 2 moles of O2, we just multiply the bond energy of O = O by two: 2 x 496 kJ/mol = 992 kJ/mol.

Now, let's calculate the bond energy for each product:

- CO2: As we have 2 bonds of C - O (O - C - O), the bond energy would be 2 x 743 kJ/mol = 1486 kJ/mol.

- H2O: As we have 2 bonds of O - H (O - H - O), and 2 moles of H2O, we multiply the bond energy by the number of bonds, and the number of moles: 2 x 2 x 463 kJ/mol = 1852 kJ/mol.

Finally, we just apply the given formula, like this:

The total energy reaction would be -698 kJ/mol.

Answer:

Cobalt, Nickel, Chromium, and Copper

If the solute had the concentrations in/out of cell and it could move across the membrane, Then the solute would diffuse into the cell.

If the solute concentration is 14 mM outside the cell and 0.1 mM inside the cell, it means the solute concentration is higher outside the cell and lower inside the cell.

Diffusion occurs from an area of the higher concentration to an area of the lower concentration. In this case, the concentration gradient is from outside the cell (higher concentration, 14 mM) to inside the cell (lower concentration, 0.1 mM). Therefore, the solute would naturally diffuse from the region of higher concentration (outside the cell) to the region of lower concentration (inside the cell).

Hence, the solute would diffuse into the cell.

To know more about solute here

https://brainly.com/question/8851236

#SPJ4

Answer: °32= 0 °C.

Explanation:

Answer:

Explanation:

Please add the temperature readings from all three trials for both thermometers. Will do the calculation with readings.

Based on the principles of fluid mechanics and erosion, the water in the river flows faster on the outside of the bend and slower on the inside.

Meandering rivers are formed due to the lateral erosion of the riverbank, which creates a curvy path for the water to flow. This is caused by the differences in water velocity between the outside and inside bends of the river.

The above difference in velocity causes the water on the outside to exert more erosive force on the bank, leading to more erosion on the outside of the curve. The slower-moving water on the inside, by contrast, tends to deposit sediment, which can result in the formation of sandbars and other features.

Therefore, it is likely that there is more erosion on the outside of the curve in the riverbed as water flows through it.

Read more about erosion  here:

https://brainly.com/question/17905503

#SPJ1

Answer:

Examples include smokestacks, discharge pipes, and drainage ditches. Factories and power plants can be a source of point-source pollution, affecting both air and water. Smokestacks may spew carbon monoxide, heavy metal, sulfur dioxide, nitrogen dioxide, or “particulate matter” (small particles) into the air.

molar mass of CF2Cl2 = 12+2*19+2*35.5= 12+38+71=121,from this 121g , 71g are as chlorine so,fraction mass of chloride =71/121=0.587,and in 29 kg you have 0.587*29=17 kg of chlorine.

Cl2 is the chemical formula for chlorine gas.Its color is yellow-green, and its smell is reminiscent to household bleach.It interacts with water to produce hypochlorous acid & hydrochloric acid.

It is mostly used as a bleach in the manufacture of paper and cloth, but it is also used to make solvents, rubber, and pesticides (insecticides).The addition of chlorine to drinking water and swimming pool water to kill dangerous microorganisms.

To know more about chlorine visit:

https://brainly.com/question/14962130

#SPJ1

Answer:

NO2 will diffuse faster.

Explanation:

Given in the pic.

Atomic mass is typically expressed as a decimal number, not a fraction. The atomic mass of an element represents the weighted average mass of all the naturally occurring isotopes of that element, taking into account their relative abundance.

The atomic mass of carbon-12 (C-12) is defined as exactly 12 atomic mass units (u).

The atomic masses of other elements are determined relative to the mass of carbon-12 using a scale based on the unified atomic mass unit (u).

Atomic mass is a relative quantity and is not necessarily a whole number for elements other than carbon-12. Most elements have multiple isotopes, which are atoms with different numbers of neutrons but the same number of protons.

These isotopes have different masses, and their relative abundances affect the atomic mass. Atomic mass can be less than 1, especially for elements with very light isotopes. For example, the atomic mass of hydrogen, the lightest element, is approximately 1.008 u, which is less than 1.

To know more about Atomic mass click this link -

brainly.com/question/29117302

#SPJ11

According to studies, convection ovens generally cook 25% faster than traditional ovens at a lower cooking temperature of roughly 25 degrees F, even if cooking times vary slightly between ovens.

Convection ovens, in contrast to conventional radiant (also known as thermal) ovens, include a fan that evenly distributes air inside the chamber, removing hot and cold regions.

A convection oven may cook food up to 25% more quickly than a regular oven.

Food cooks roughly 25% more quickly in a convection oven because hot air is blown directly onto it rather than merely surrounding it.

Convection ovens heat up more quickly and cook food more quickly. Thanks to some straightforward modifications to the appliance, they also cook more evenly.

All of this results in tastier baked goods, meats, and other foods.

Overall, the convection oven option is excellent if you want a crisp, rapid result, but stick with the regular oven if you want your food to retain moisture or rise before it is fully baked.

To learn more about Convection oven from given link

https://brainly.com/question/15700369

#SPJ1

Answer:

No

Explanation:

Mass affects the amount of gravity that acts on an object.

Answer:

Mass is determined by the quantity of matter in a physical object.

Mass is how much space something takes up, while weight is how much an object is acted on by a force because of gravity.

Explanation:

Gravity does not determine the mass of an object. For example, an object on the Moon would weigh less than it does on Earth because of the lower gravity, but it would still have the same mass. This is because weight is a force, while mass is the property that determines the strength of this force.