Determine the molecular and empirical formulas for the substance shown in the ball-and-stick model below.

Answer: D

Explanation: i’m right

Answer:   Rb (rubidium) has a radius of 290 pm, making it have the largest of the 5 elements listed.

Explanation:

Answer:

Lower molar mass :)

Explanation:

Answer:

2. Lower Molar Mass

Explanation:

effusion can increase with either temperature increase, faster moving particles, or when the gas has lower molar mass. the only answer option that fits the description is answer option 2. Lower molar mass

Answer:

the second question should be along the staircase

Answer:

when they collide they can experience collision

because without force collision wouldn't have happen.

Answer:

[tex]\Delta _rH=-802.2kJ/mol[/tex]

Explanation:

Hello!

In this case, according to the given chemical reaction, it is possible to calculate the enthalpy change of the reaction via:

[tex]\Delta _rH=\Delta _fH_{CO_2}+2\Delta _fH_{H_2O}-\Delta _fH_{CH_4}[/tex]

Since the enthalpy of formation of oxygen is 0. Thus, given the enthalpies of formation of gaseous carbon dioxide and water, we obtain:

[tex]\Delta _rH=(-393.5kJ/mol)+2(-241.8kJ/mol)-(-74.9kJ/mol)\\\\\Delta _rH=-802.2kJ/mol[/tex]

Best regards!

The lithosphere is where all three forms of rocks form.  A physical change is a reversible change and chemical changes are irreversible. The melting of ice is a physical change and change of matter is chemical.

The lithosphere is the layer of earth where all three types of rocks such as igneous, metamorphic, and sedimentary can be found. The physical changes are those that affect physical properties and are reversible like heating and cooling.

While the chemical changes are irreversible. The physical changes lead to the change in form of the substance while chemical change leads to the rearrange of matter.

Find out more information about the types of rocks.

brainly.com/question/26400505

Answer:

C . the dramatic scenery created by volcanic eruptions attracts tourists.

The statement 'lava flows and lahars clear areas of woodland or agriculture' is a negative aspect of a volcanic eruption (Option B).

In conclusion, the statement 'lava flows and lahars clear areas of woodland or agriculture' is a negative aspect of a volcanic eruption (Option B).

Learn more in:

https://brainly.com/question/1622004

Answer:

The carbon cycle describes the process in which carbon atoms continually travel from the atmosphere to the Earth and then back into the atmosphere. ... Carbon is released back into the atmosphere when organisms die, volcanoes erupt, fires blaze, fossil fuels are burned, and through a variety of other mechanisms.

hopefully that answered your question. brainliest would be appreciated. have a awesome day!

Answer:

evaporation or released from natural eruptions by nature

Answer: It has 13 electrons total and and 3 in the valance shell.

Explanation: Aluminum

Answer:

cause they like it that way

Explanation:

btw cant tell if this is legit or not

Answer:5000 i think

Explanation:

Answer:

69.152 % → 63Cu

30.848 % → 65Cu

Explanation:

As you know, the average atomic mass of an element is determined by taking the weighted average of the atomic masses of its naturally occurring isotopes.

Answer:

Subtract the volume of the water alone from the volume of the water plus the object. For instance, if "b" was 50 milliliters and "a" was 25 milliliters, the volume of the irregularly shaped object would be 25 milliliters.

Explanation:

Hope it helps

Answer:

3 mol H2 / 1 mol NH3

Explanation:

Mole ratio depicts or shows the relationship between the number of moles of two substances in a chemical reaction. The following chemical equation is given:

N2 + 3H2 → 2NH3

According to the above chemical equation;

- 1 mole of N2 reacts

- 3 moles of H2 reacts

- 2 moles of NH3 is produced

Hence, this means that according to the options provided in this question, the incorrect one is 3 mol H2 / 1 mol NH3 because 2 moles rather than 1 mol of NH3 is involved.

Answer:

584.2 g

Explanation:

Hello there!

In this case, since we know the 20% of the atoms correspond to sodium, we can compute the total atoms as shown below:

[tex]\frac{1.204 x10^{24}}{0.2}=6.02x10^{24}atoms[/tex]

Which are also equal to 1 mol and the Avogadro's number of sodium chloride with a molar mass of 58.44 g/mol; thus, the grams of salt turn out to be:

[tex]6.02x10^{24}atoms*\frac{1mol}{6.022x10^{23}atoms} *\frac{58.44g}{1mol}\\\\=584.2g[/tex]

Best regards!

Answer:C

Explanation:

Answer:

Substance D

Explanation:

USA Test Prep Corrections

Answer:

a storage space for fluids

Explanation:

Answer:

an area where large amounts of water are stored

Explanation:

Answer:

7.33 mol P

Explanation:

4.41 × 10²⁴ / 6.02 × 10²³ = 7.33

Answer:

the answer is 7.33 mol P

Explanation:

Answer:

c = λ x ν

v =c/λ=(3*10e8)/(5.00 x 10e-5)=6000000000000

f = v/λ =6000000000000/5.00 x 10e-5=120000000

Explanation:

Answer:

Aluminum is the second most abundant metallic element on earth. It has been estimated that 8% of the earth's crust is composed of aluminum, usually found in the bauxite form. On a volume basis, aluminum has become the most widely used non-ferrous metal.

Primary aluminum production is the quantity of primary aluminum produced in a specified period and the quantity of molten or liquid metal tapped from pots that is weighed before transfer to a holding furnace or before further processing.

Explanation:

Answer:

they will have 100% kinetic energy

Explanation:

all the potential energy has been used when it is at the bottom of the ramp

Answer: 37.01 moles (mol) of gas

Explanation:Use PV=nRT

which is also equal to n=PV/RT

P=2.90

V= 4.80

R = 8.31 (R will always be the same in any equation)

T= 62.0

2.90 x 4.80= 13.92 / 8.31 x 62= 515.22

13.92/13.92=515.22/13.92

n= 37.01 mol

Answer:

0.0526mol

Explanation:

The chemical equation given in this equation is as follows:

Na3PO4 + Sr(NO3)2 → Sr3(PO4)2 + NaNO3

However, this equation is unbalanced as the number of atoms of each element on each side does not correlate. The balanced equation is as follows:

2Na3PO4 + 3Sr(NO3)2 → Sr3(PO4)2 + 6NaNO3

This balanced equation means that:

2 moles of Sodium Phosphate (Na3PO4) is required to react with 3 moles of Strontium Nitrate (Sr(NO3)2)

Hence, if 0.0789 moles of Strontium Nitrate are reacted, then 0.0789 × 2/3

moles of sodium phosphate will also react.

= 0.0789 × 2/3

= 0.1578/3

= 0.0526mol

Answer:

1. It will take the shape of its container. Particles can move about within a liquid, but they are packed densely enough that volume is maintained. Gaseous matter is composed of particles packed so loosely that it has neither a defined shape nor a defined volume. A gas can be compressed

2.  However after pouring the water from one short glass into a tall glass,  to be the same amount after being poured into any other container

3. Yes, wood have a fixed shape. Explaination: The reason is that it's solid and solids have a definite volume and shape. ... They have shapes that do not change and volumes that can be measured

4. Water is known to exist in three different states; as a solid, liquid or gas. Clouds, snow, and rain are all made of up of some form of water. A cloud is comprised of tiny water droplets and/or ice crystals, a snowflake is an aggregate of many ice crystals, and rain is just liquid water

5. Solids are sometimes formed when liquids or gases are cooled; ice is an example of a cooled liquid which has become solid. Other examples of solids include wood, metal, and rock at room temperature

6. For example, water commonly exists in three states of matter: solid (ice), liquid (water), and gas (steam)

Explanation:

plzzzzzzzzzzzzzz give brainly

1. It will adopt its container's shape. Within a liquid, particles can move around, yet the volume is maintained because of the liquid's dense packing. Particles in gaseous stuff are arranged so haphazardly that neither their shape nor their volume can be determined.

The term liquid is defined as substance which is not solid but which flows and can be poured and take a shape of container. water is an example of liquid.

2. However, the same amount of water would be poured into any other container after being transferred from one short glass to a tall glass.

3. The shape of wood is fixed. It's solid, and solids have a distinct volume and shape, which explains why. They have measurements-able volumes and unchanging forms.

4. There are three recognized states of water: solid, liquid, and gas. Snow, rain, and clouds are all composed of water in some way. A snowflake is an accumulation of several ice crystals, a cloud is made up of microscopic water droplets and/or ice crystals, and rain is just liquid water.

5. When liquids or gases are chilled, solids can occasionally form; ice is an example of a cooled liquid that has solidified. At room temperature, solids also include wood, metal, and rock.

6. As an illustration, water typically exists in three states: solid (ice), liquid (water), and gas (steam).

Thus, to learn more about liquid, follow the link;

https://brainly.com/question/20922015

#SPJ2