please help me with this answer​

Answer:

2H+(aq) + CaCO3(s) → Ca2+(aq) + H2O(l) +. CO2(g). [ 2]. Award [1] for correct reactants and products. Award [1] if the ... Exercises. 1 Reaction gives off a gas: change in volume could be measured.

Answer:

Calcium hydroxide has more atoms.

Explanation:

Avogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in one mole of said substance. Its value is 6.023*10²³ particles per mole. Avogadro's number applies to any substance.

Then you can apply the following rules of three:

[tex]amount of moles of calcium carbonate=\frac{2.5 moles*6.023*10^{23} atoms}{1 mole}[/tex]

amount of moles of calcium carbonate= 1.50575*10²⁴

[tex]amount of moles of calcium hydroxide=\frac{3.5 moles*6.023*10^{23} atoms}{1 mole}[/tex]

amount of moles of calcium hydroxide= 2.10805*10²⁴

2.10805*10²⁴ is greater is 1.50575*10²⁴, so calcium hydroxide has more atoms.

Answer:

3.62 g/cm³

Explanation:

density = mass ÷ volume

Therefore, do 12.69 divided by 3.5

Answer:

autotrophs

Explanation:

Answer:

ok this might not be right but i think its 1,575??

Explanation:

(125)(28)(0.450)

i think you just multiply the grams, change in temp, then the cp by each other not completely sure tho

Transverse wave:

⇨- the way the wave is moving

⟶- Medium - the material it is traveling through

冖- Wavelength - the distance from crest to  crest

C - Crest - the highest point on a wave

T - trough - the lowest part on a wave

↕️ - Amplitude - the distance from rest to crest

ྊ - (tinfoil)Wave

Description:

In the beginning of the wave the wavelength is short and the frequency is high so is the energy.and the amplitude is low *i believe* And after the mark of T shown on the image the wavelength is long and the frequency is low and so is the energy and the amplitude is high *i believe*.Amplitude and wavelength are both measures of distance.

Longitudinal/Compressional Wave:

KEYS:

⟶-medium - the material it is traveling through

⇨-way the wave is moving

冖-wavelength - the distance from crest to  crest

R -Rarefaction -  the opposite of compression

C-Compression - particles are closest together

Answer:

These are Magnesium bromide is MgBr2. “ionic compounds.” When atoms join together, they form either molecules or ionic compounds, depending on whether they are joined by covalent bonds or ionic bonds. ... When atoms join together by ionic bonds, they form “ionic compounds”.

Explanation:

Hope it helps u

FOLLOW MY ACCOUNT PLS PLS

Answer:

1972 grams of F₂

Explanation:

Multiply the molar mass of F₂ by the number of moles

Answer:

A Bagel Cat

Explanation:

Answer:

the spotted Egyptian Mau, with the Asian leopard cat.

Answer:

each compound or molecule is indicated in subscript next to the compound by an abbreviation in parentheses. For example, a compound in the gas state would be indicated by (g), solid (s), liquid (l), and aqueous (aq).

Explanation:

Answer:

Carbon-12 and carbon-14 are two isotopes of the element carbon. The difference between carbon-12 and carbon-14 is the number of neutrons in each of their atoms. ... Atoms of both isotopes of carbon contain 6 protons. Atoms of carbon-12 have 6 neutrons, while atoms of carbon-14 contain 8 neutrons.

Explanation:

haha carbon atoms go brrrrr

Answer:

56 %

Explanation:

The percent dissociation of a weak acid can be defined as:

Moles of weak acid that produced H₃O⁺ species / Total number of weak acid moles * 100%

We are given all the required data to calculate the percent dissociation:

0.42 mol / 0.75 mol * 100 % = 56 %

The percent dissociation is 56%.

Answer:

                      Energy

potential energy        kinetic energy

chemical energy         thermal energy

                                                                   joules

Explanation:

chemical energy is a type of potential energy or stored energy. Heat is a kinetic energy and energy is measured in joules.

The first box is energy. It can be divided into kinetic energy in one side and potential energy in the other side. Here, kinetic energy can be converted to the thermal energy and potential energy can be converted to chemical energy. They are measure in Joules.

Potential energy and kinetic energy are two forms of energy that are commonly encountered in physics.

Potential energy is energy that an object possesses due to its position, shape, or state. An object can store potential energy when it is moved away from its equilibrium position, such as when a spring is stretched or a book is lifted to a certain height above the ground.

The amount of potential energy an object has is proportional to its mass, height, and the strength of the force that is acting on it. The average kinetic energy of an object is called its thermal energy.

Therefore,  first box is energy. It can be divided into kinetic energy in one side and potential energy in the other side. Here, kinetic energy can be converted to the thermal energy and potential energy can be converted to chemical energy. They are measure in Joules.

Find more on potential energy:

https://brainly.com/question/11749818

#SPJ2

Answer:

Darmstadtium! Happy to help! :)

Answer:

Explanation:

If only one parameter can be changed in the simulation, it would be the global temperature. Human activities cause global warming and the temperature rise has caused the polar ice cap to melt. With more fresh water going into the oceans due to melting ice cap, there is a big impact on the pH.

Answer:

Explanation:

increase CO2 in atmosphere - human activity like driving cars n burning fossil fuel releases air polluntants. CO2, NOx n SO2 are all soluble in water n form acids. of the 3, CO2 is the most common pollutant n has the most effect on the pH in oceans.

Answer:

59.92 × 10²³ atoms are in 9.95 moles of iron

1.8 ×10²² molecules are in 0.03 moles of Carbon dioxide

1.19 moles are found in 7.20 x 10^23 atoms of platinum

Answer:

298.99 , = 738.39

Explanation:

hope it help you

to gain the answer

Answer:

sry i don't know that language

Answer:

2.56 moles of nitrogen was released.

Explanation:

We'll begin by calculating the final moles of nitrogen in the canister. This can be obtained as follow:

Initial mole (n₁) = 3.2 moles

Initial volume (V₁) = 1.5 L

Final volume (V₂) = 0.3 L

Final mole (n₂) =?

V₁/n₁ = V₂/n₂

1.5 / 3.2 = 0.3 / n₂

Cross multiply

1.5 × n₂ = 3.2 × 0.3

1.5 × n₂ = 0.96

Divide both side by 1.5

n₂ = 0.96 / 1.5

n₂ = 0.64 mole

Finally, we shall determine the number of mole of nitrogen that was released. This can be obtained as follow:

Initial mole (n₁) = 3.2 moles

Final mole (n₂) = 0.64 mole

Amount released =?

Amount released = n₁ – n₂

Amount released = 3.2 – 0.64

Amount released = 2.56 moles

Thus, 2.56 moles of nitrogen were released.

Answer:

The answer would be 0.65625

Answer:

2.67g of NH4Cl are required

Explanation:

Molarity is an unit of concentration in chemistry defined as the moles of solute (In this case, NH4Cl), per liter of solution.

To prepare 100mL of a 0.50M are required:

100mL = 0.100L * (0.50 moles / L) = 0.0500 moles NH4Cl

As molar mass of NH4Cl is 53.491g/mol:

0.0500 moles * (53.491g / mol) =

Answer:

because not enough of the parent isotope remains to measure accurately. because not enough of the daughter product has formed to be detectable.

Explanation:

Hope it helps

Answer:

[tex]C_{tin}=0.560\frac{J}{g\°C}[/tex]

Explanation:

Hello there!

In this case, for this calorimetry problem, we can notice that the heat evolved by the hot tin is gained by the cold water as the calorimeter is perfectly isolated, so we can write:

[tex]-Q_{tin}=Q_{water}[/tex]

Thus, by defining the heats in terms of mass, specific heat and temperatures, we get:

[tex]-m_{tin}C_{tin}(T_F-T_{tin})=m_{water}C_{water}(T_F-T_{water})[/tex]

Now, since we are asked for the specific heat of tin, we solve for it as shown below:

[tex]C_{tin}=\frac{m_{water}C_{water}(T_F-T_{water})}{-m_{tin}(T_F-T_{tin})}[/tex]

Thus, when we plug in, we obtain:

[tex]C_{tin}=\frac{75.4g*4.184\frac{J}{g\°C} (27.2\°C-21\°C)}{-55.1g(27.2\°C-90.6\°C)}\\\\C_{tin}=0.560\frac{J}{g\°C}[/tex]

Regards!

Answer:

500,050000 years

Explanation:

Given that :

Rate of Accumulation = 3cm/ 1000 years

Height of seamounts = 1.5km

Representing height of seamounts in cm;

(1.5 *1000 * 100) = 1500150 cm

Time taken = height / rate

Time taken = (1500150 cm / 3cm) * 1000

Time taken = 500,050000 years

Answer:

The particles in a solid are tightly packed and locked in place. Although we cannot see it or feel it, the particles are moving or vibrating in place. 

Answer:

molecules in a solid are tightly packed together and vibrate about their fixed positions.

Explanation:

there is very little movement between molecules in a solid since there is not much space between the molecules, hence the slight vibrations.

i hope this helps! :D