WhT is the amount of NaCI that can be added to 50.0g of water at 60.0oc?

Answer:

The respiratory system

Explanation:

Answer:

The diaphragm belongs to the respiratory system, digestive system, and muscular system.

I'm not too sure on the muscular system, but the other two 100%

Explanation:

Hopefully, this helps. :)

Answer:

D. All of the above

Explanation:

Elements are being grouped in the "Periodic Table" in order to associate them with other elements that have similar properties. These elements also have the same number of "valence electrons" or electrons located in the outer shell. The groups are then classified into their "family names." For example, Group 1 is named "Alkali metals" because the elements within it are very reactive and have high conductive property. The valance electron of the elements in this group is "1."

Answer:

Atoms are neutral in electrical charge because they have the same number of negative electrons as positive protons (Table 4.5. 1). Therefore, the atomic number of an atom also tells you how many electrons the atom has. This, in turn, determines many of the atom's chemical properties

Explanation:

Answer: A. AB+C->CB+A

Explanation:

The chemical reaction includes the reactant and products. The single replacement reaction can be given as AB + C → CB + A. Thus option a is correct.

A single replacement reaction is the exchange reaction that involves the substitution of a single element of the reactant with another element of the reactant species.

The reaction between zinc and copper chloride is a single replacement reaction as copper is replaced by zinc in the copper chloride compound to produce zinc chloride and copper.

Therefore, option A. AB + C → CB + A is the single replacement reaction.

Learn more about single replacement reaction here:

https://brainly.com/question/13903783

#SPJ2

The more kinetic energy a substance has, the warmer it will be and the faster particles will be moving, which reduces the density of the substance

Science affected our lives at the beginning of this pandemic.

Explanation:

Although scientists did study the virus to see how deadly it is the pandemic kept spreading. The spreading of the virus was not the scientist's fault it was the citizens' fault. They now found a vaccine that took hard work and a short amount of time.

Answer:

This one seems tricky, but the answer is B.

Explanation:

The first answer choice is wrong because it only applies to volcanic mountains.

C. would be true for folded mountains and volcanic mountains, but not fault-block mountains. Fault-block mountains have steep slopes and jagged surfaces; hence why B is correct.

D. is wrong because it applies to all three types of mountains mentioned.

Really, volcanic mountains can have gentle slopes and steep slopes, as well as jagged appearances and dome-shaped appearances. All that has to be assessed is the characteristics of fault-block mountains. This would be described in answer choice B.

Answer:

0.28moles of silicon

Explanation:

Given parameters:

Number of molecules of silicon  = 1.7 x 10²³molecules

Unknown:

Number of moles of the silicon  = ?

Solution:

A mole of any substance contains the Avogadro's number of particles.

   1 mole of a substance contains 6.02 x 10²³molecules;

  So;

     1.7 x 10²³molecules contains [tex]\frac{1.7 x 10^{23} }{6.02 x 10^{23} }[/tex]   = 0.28moles of silicon

boiling waterAnswer:

Explanation:

its called thermal energy

Answer:

90 minutes

Explanation:

The half life of a first order reaction is;

t1/2 = ln(2) / k

To solve for t;

The integral rate expression for a first order reaction is;

ln[A] = ln[Ao] - kt

t = 60 minutes

Final Concentration = [A] = 100 - 37 = 63

Initial Concentration = [Ao] = 100

ln(63) = ln(100) - k (60)

k (60) = ln (100) - ln(63)

k = 0.4620 / 60 = 0.0077

Inserting the value of k in the half life equatin;

t1/2 = ln(2) / 0.0077 = 90 minutes

Answer:

its 25

Explanation:

Answer:

your answer should be c i had this qs before

Explanation:

Answer:

C

Explanation:

A p orbital has the approximate shape of a pair of lobes on opposite sides of the nucleus.

Explanation:

A p orbital would have a du-bbell shape.

Options A and B show a spherical shape, which are for s orbitals.

Option D shows a double du-bbell / clover leaf shape, which is for d orbitals.

The answer is Option C.

P.S. The word is censored apparently, so be forgiving! Thanks~

Answer:

Answer:

2H2O2→2H2O+O2

Explanation:

This reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

Add 2 molecules of hydrogen peroxide and 2 molecules of water. Since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

2H2O2→2H2O+O2

Answer:

corrosiveness is a chemical property

Answer:

The main advantages of non-renewable energies is that they are abundant and affordable. For example, oil and diesel are still good choices for powering vehicles. Non-renewable energy is cost effective and easier to product and use.

Explanation:

there yah go

Answer:

1.989 × 10^30 kg

Explanation:

Hope this helps! :3

☁️ Answer ☁️

A solar mass is the mass of the sun. Or, more precisely, it's 1.989 x 10^30 kilograms — about 333,000 Earths. Astronomers use a solar mass as a basic unit of mass.

Dear fool, you will always be a fool.

Happy April Fools Day.

Hope it helps.

Have a nice day noona/hyung

Answer: With power and energy, power is units of energy divided by time. The same difference as distance and velocity. The units of power are watts, the units of energy are joules.

Explanation:

abcdefghijklmnopqrstuvwxyzExplanation:abcdefghijklmnopqrstuvwxyz

Answer:

Indium

Explanation:

That is Indium (In) which is in same group as Al

Answer:

bronze medal i guess

i hope its correct.

Explanation:

Answer:

silver spoon

Explanation:

i had this for castle learning and guessed this and it was right

Answer:

It makes chemicals hot or cold which makes chemicals react differently

Explanation:

mark me brainliest

Explanation:

Giant Gas Cloud. A star originates from a large cloud of gas. ...

Protostar. When the gas particles in the molecular cloud run into each other, heat energy is produced. ...

T-Tauri Phase. ...

Main Sequence. ...

Red Giant. ...

The Fusion of Heavier Elements. ...

Supernovae and Planetary Nebulae

Answer:

0.81mole

Explanation:

Given:

Volume of carbon monoxide  = 18dm³

Unknown

Number of moles of carbon monoxide  = ?

Solution:

To solve this problem;

           1 mole of any gas at rtp occupies a volume of 22.4dm³  

So;

           x mole of carbon monoxide will occupy a volume of 18dm³ at rtp

        22.4x  = 18

                x  = [tex]\frac{18}{22.4}[/tex]   = 0.81mole

Answer: two elements and three atoms

Explanation:

An element is the simplest substance and hence cannot be broken down using chemical reactions.

Magnesium chloride [tex](MgCl_2)[/tex] is an ionic compound formed by the transfer of electrons from element magnesium (Mg) to element chlorine (Cl) where Magmesium forms a cation [tex]Mg^{2+}[/tex] by losing two electrons and chlorine forms an anion [tex]Cl^{-}[/tex] by gaining electron.

There are 3 atoms in Magnesium chloride [tex](MgCl_2)[/tex] which include one atom of magnesium (Mg) and two atoms of chlorine (Cl).