How many sig figs are in 0.00205kg

Answer:

Option D - It tells which compounds will dissolve in water.

Explanation:

It is used to predict whether or not a given ionic compound is soluble.

Answer:

d

Explanation:

Answer:

39.095

Explanation:

this is because all this isotopes belong to a single element thus

(38.96×93.26)+(39.96×0.012)+(40.96×6.73)

answer of that divided by 100%

Answer:

According to Avogadro's law which states that equal volumes of all gases under the same condition of temperature and pressure contain equal number of molecules. Therefore, one molecule of hydrogen reacts with one molecule of chlorine to yield two molecules of hydrogen chloride.

The formula of hydrogen chloride is HCl

The particle diagram is found in the attachment below.

Explanation:

The reaction between hydrogen and chlorine to form hydrogen chloride is represented by the equation below

H₂(g) + Cl₂(g) ---> 2HCl(g)

In the reaction equation above, one mole (or one volume) of diatomic hydrogen gas reacts with one mole (or one volume) of diatomic chlorine gas to form two moles (or two volumes) of hydrogen chloride gas. This is in accordance with Avogadro's law which states that equal volumes of all gases under the same condition of temperature and pressure contain equal number of molecules.

Answer:

Nvm the answer is for sure B. CHEFS

Explanation:

Answer:

BBBBBBBBBBBBBBBBBBB: CHEFS

All solutions are mixtures of two or more substances, but unless the mixture has a homogeneous distribution of solutes in the solvent, then the mixture is not a solution. Therefore, all mixtures are not solutions.

Answer:

357 g of the transition metal are present in 630 grams of the compound of the transition metal and iodine

Explanation:

In any sample of the compound, the percentage by mass of the transition metal is 56.7%. This means that for a 100 g sample of the compound, 56.7 g is the metal while the remaining mass, 43.3 g is iodine.

Given mass of sample compound = 630 g

Calculating the mass of iodine present involves multiplying the percentage by mass composition of the metal by the mass of the given sample;

56.7 % = 56.7/100 = 0.567

Mass of transition metal = 0.567 * 630 = 357.21 g

Therefore, the mass of the transition metal  present in 630 g of the compound is approximately 357 g

Answer:

F1+ is the one that violates the octet rule

Explanation:

F1+  does not end up having 8 electrons in its valence shell, and there for violates the octet rule, for an atom to comply with the octet rule its charge must reflect the number of electrons it needs to gain or lose to make an octet, but F1+'s charge does not reflect the number of electrons it needs to be stable or have an electron configuration of a noble gas

Answer:

a chromosome contains many genes

Explanation:

Answer:

[tex]\lambda=10^{-4}\ m[/tex]

Explanation:

Given that, [tex]\lambda=10^{-4}\ m[/tex]

The frequency of infrared wave, [tex]f=3\times 10^{12}\ Hz[/tex]

We need to find the wavelength of infrared wave. The relation between the frequency and the wavelength is given by :

[tex]c=f\lambda[/tex]

where

c is the speed of light

[tex]\lambda=\dfrac{c}{f}\\\\\lambda=\dfrac{3\times 10^8}{3\times 10^{12}}\\\\=0.0001\ m\\\\=10^{-4}\ m[/tex]

So, the wavelength of the infrared wave is [tex]10^{-4}\ m[/tex].

Answer:

conductors

Explanation:

Answer:

2.652 g/h.

Explanation:

Burn rate (in mg/min) = 44.2 mg/min

Burn rate (in m/h) =?

We'll begin by converting 44.2 mg/min to g/min. This can be obtained as follow:

1 mg/min = 0.001 g/min

Therefore,

44.2 mg/min = 44.2 mg/min × 0.001 g/min / 1 mg/min

44.2 mg/min = 0.0442 g/min

Finally, we shall convert 0.0442 g/min to g/h. This can be obtained as follow:

1 g/min = 60 g/h

Therefore,

0.0442 g/min = 0.0442 g/min × 60 g/h / 1 g/min

0.0442 g/min = 2.652 g/h

Therefore, 44.2 mg/min is equivalent to 2.652 g/h.

Thus, the burn rate (in m/h) is 2.652 g/h.

Answer:

Explanation:

Answer:

try (107.87 amu)

Explanation:

The correct decay series :

₈₄Po²¹⁴⇒₈₃Bi²¹⁰+₂He⁴+ ₋₁e⁰+ ₀γ⁰

Radioactivity is the process of unstable isotopes to stable isotopes by decay, by emitting certain particles,  

Decay's reaction :

₈₄Po²¹⁴⇒₈₃Bi²¹⁰+x+y+z

From this decay reaction can be concluded

mass number decreased by 4

atomic number decreased by 1

Then the most suitable are:

Polonium-214 undergoes 1 alpha decay 1 beta decay and 1 gamma emission.

₈₄Po²¹⁴⇒₈₃Bi²¹⁰+₂He⁴+ ₋₁e⁰+ ₀γ⁰

So that the mass number and atomic number are the same both before and after decay

Answer:

Carbon dioxide concentrations are rising mostly because of the fossil fuels that people are burning for energy.

Answer:

Gibbs free energy equation

Explanation:

Answer:

1869, the Russian chemist Dmitri Mendeleev came to prominence with his tabular ... He found that few of the new developments in the field of chemistry had made ... He corrected the known atomic masses of some elements and he used the ... Atomic number 101, Mendelevium, is named after the periodic table's architect

Explanation:

1869, the Russian chemist Dmitri Mendeleev came to prominence with his tabular ... He found that few of the new developments in the field of chemistry had made ... He corrected the known atomic masses of some elements and he used the ... Atomic number 101, Mendelevium, is named after the periodic table's architect

Answer:

Heat the molecule

Explanation:

Since most bonds require energy to form, they also give off energy when they are broken. But before most bonds break, the molecule has to be heated. Then the atoms start to move, and when they move too much, the bond breaks. Molecules that require less energy to break than they give off when broken are called fuels.

Answer:

D) 174 g/mol

Explanation:

Step 1: Given and required data

Step 2: Convert "T" to Kelvin

We will use the following expression.

K = °C + 273.15

K = 25.0°C + 273.15

K = 298.2 K

Step 3: Calculate the molecular weight (M) of the gas

We will use the following expression derived from the ideal gas equation.

ρ = P × M / R × T

M = ρ × R × T / P

M = 7.10 g/L × (0.0821 atm.L/mol.K) × 298.2 K / 1.00 atm

M = 174 g/mol

Given values:

We know the formula,

→ [tex]PV = nRT[/tex]

or,

→ [tex]PM = \frac{W}{V} RT[/tex]

or,

→ [tex]PM = dRT[/tex]

By substituting the values, we get

[tex]1\times M = 7.10\times 0.0821\times 298[/tex]

     [tex]M = 7.10\times 0.0821\times 298[/tex]

          [tex]=174[/tex]

Thus the answer i.e., "option D" is appropriate.

Learn more about molecular weight here:

https://brainly.com/question/14685031

Answer:

D

Explanation:

The graph of Boyle's law is known as pressure-volume graph or PV curve. It is as follows:

As observed from the graph above, pressure increases with a decrease in volume, and vice versa. Thus, pressure is inversely proportional to volume. Other parameters (temperature and amount of gas) are constant in the graph above.

Volume is on the x-axis and pressure, on the y-axis. The equation of the curve is PV = k, which is the equation of Boyle's law. The curve is hyperbolic in nature having two asymptotes: P = 0 (horizontal) and V = 0 (vertical).

As volume tends to positive infinity, pressure tends to zero, and we get the horizontal asymptote, P = 0.

Horizontal asymptote, P=0

When volume approaches zero, pressure approaches infinity, and it results in the vertical asymptote, V = 0.

The graph which shows the pressure-volume relationship expected for an ideal gas is: C)  Graph D.

Boyle's states that when the temperature of an ideal gas is kept constant, the pressure of the gas is inversely proportional to the volume occupied by the gas.

Mathematically, Boyle's law is given by the formula:

[tex]PV = k[/tex]

Where;

For the illustration of Boyle's law using a graph, volume is represented on the x-axis while pressure is represented on the y-axis.

Generally, the graph of Boyle's law is a hyperbolic curve with two asymptotes:

Find more information: https://brainly.com/question/1437490

Answer:

It converts The liquid into a gas at the same temperature.

Explanation:

Answer:

it converts the liquid into gas at the same temperature

Explanation:

when heat is added to a liquid at boiling temperature it converts the liquid into gas at that same boiling temperature

please give brainliest

The type of bond is determined by the difference in electronegativity of the atoms. Hence, option D is correct.

A chemical bond is what holds atoms together in molecules.

The ability of an atom to attract a pair of electrons in a chemical bond is called its electronegativity. The difference in electronegativity between two atoms determines how polar a bond will be.

Hence, option D is correct.

Learn more about bond here:

https://brainly.com/question/7591319

#SPJ2

Answer:

Birth

Explanation:

Once your out of the wound  you develop into a kid to a toddler, then a teen and so on

Answer:

protons = 26; neutrons = 30

Explanation:

protons = atomic number; neutrons = atomic mass – # of protons.

Answer:

Kush would have been able to fight better and probably would have never been invaded by Egypt, and they could have beaten the Assyrians when they tried to takeover Egypt. And the 25th dynasty would have continued.

Explanation:

that is my explanation and answer^

Answer:

True

Explanation:

Answer:

heat conduction

Explanation:

Conduction :]

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Answer:

0.36M HCl

Explanation:

The reaction of Mg(OH)₂ with HCl is:

Mg(OH)₂ + 2HCl → MgCl₂ + 2H₂O

Where 1 mole of magnesium hydroxide reacts with 2 moles of HCl

To solve this question, we need to find the moles of Mg(OH)₂ that reacted and, with chemical equation, solve for the moles of HCl and its molarity (Using the 10.00mL = 0.01000L) as follows:

Moles of Mg(OH)₂:

18mL = 0.018L * (0.100mol / L) = 0.0018 moles Mg(OH)₂

Moles HCl:

0.0018 moles Mg(OH)₂ * (2 moles HCl / mol Mg(OH)₂) = 0.0036 moles HCl

Molarity HCl:

0.0036 moles HCl / 0.0100L =

Answer:

False

Explanation:

humans have 23 pairs