explain why each are chemical or physical properties if I made a mistake pls tell me

air that is cooling will cause the highest pressure

Explanation:

This is because heat has to escape a certain area and if the heat can't escape then more and more pressure will build up in a area.

Answer:

3.1 moles of Iron(III) Oxide

Explanation:

The equation of the reduction of iron III oxide using carbon is shown;

Fe2O3 + 3CO → 2Fe + 3CO2

From the reaction equation;

1 mole of  Iron(III) Oxide yielded 3 moles of carbon dioxide

x moles of Iron(III) Oxide will yield  9.20 moles of carbon dioxide

x = 9.2 moles * 1 mole/3 moles

x = 3.1 moles of Iron(III) Oxide

Answer: 1,480m/s

Explanation:

Answer:

b.

Explanation: brainliest

Answer:

where the main questions of these assmesnt

Explanation:

Answer:

NACI

Explanation:

because it it

Answer:

At room temperature Na is solid. At room temperature chlorine is a gas.

Explanation:

Sodium is an alkali metals, and all alkali metals are solid at room temperature. Chlorine is a noble gas, and all noble gases are gases at room temperature.

Answer:

[tex]1 \: mole \: contains \: 6.02 \times {10}^{23} \: molecules \\ 15 \: moles \: contain \: (15 \times 6.02 \times {10}^{23} ) \: molecules \\ = 9.03 \times {10}^{24} \: molecules[/tex]

Answer:

A charge of +2

Explanation:

[tex]Ca {}^{2 + } [/tex]

Answer:

There is one mole in 6.02*10^23 particles of anything ( also CO2)

Answer:

Step-by-step explanation:

We are already given the following formulas :-

[tex]\blue{\alpha + \beta = \dfrac{-b}{a}}[/tex]

[tex]\red{\alpha \times \beta = \dfrac{c}{a}}[/tex]

Given that the polynomial is :-

[tex]\sf{6x^2 + 0x - 3}[/tex]

Now, we will use factorisation as our first weapon :-

6x² -3 = 0 [As we have to find the zeroes of the equation]

6x² = 3

x² = [tex]\dfrac{3}{6}[/tex]

x² = [tex]\dfrac{1}{2}[/tex]

x = [tex]\dfrac{1}{\sqrt{2}}[/tex]

Now, we can take one zero as 1/Root 2 and other -1/root 2

[tex]\dfrac{1}{\sqrt{2}} + \dfrac{-1}{\sqrt{2}} | \dfrac{0}{6} = 0[/tex]

0 |0 Hence verified.

[tex]\dfrac{1}{\sqrt{2}} \times \dfrac{-1}{\sqrt{2}} | \dfrac{-3}{6} = 0[/tex]

[tex]\dfrac{1}{2} | \dfrac{1}{2}[/tex]

Hence, proved.

Answer:

It's more like abnormal tissue growth

Explanation:

consider it like a cancer.

Answer:

Sulfur would gain electrons

Explanation:

Atoms want to have a complete out valence shell and because sulfur only needs 2 more electrons to complete the outer shell it would take 2 more.

Answer:

1.47 × 10^(23)

Explanation:

Answer:

The answer is "22.5"

Explanation:

Concentration:

[tex]M_1= 0.3 \ m \ of\ KNO_3\\\\M_2=2.00\ M\\\\[/tex]  

Volume:

[tex]V_1=150 \ ml \ of\ KNO_3 \\\\V_2=?[/tex]

Using formula:

[tex]M_1V_2=M_2V_2\\\\V_2=\frac{M_1V_1}{M_2}\\\\[/tex]

    [tex]=\frac{0.3 \times 150}{2}\\\\=\frac{45}{2}\\\\=22.5[/tex]

Answer:

c. 77 %

Explanation:

Percent mass (% mass) of solute = mass of solute/mass of solution × 100

According to this question, a mountain dew solution weighing 300grams contains 231 g of sugar. This means that:

% mass of sugar = 231g/300g × 100

% mass of sugar = 0.77 × 100

% mass of sugar = 77%.

Answer:

Salt is any neutral chemical compound made of cations (positive ions) attached to anions (negative ions). The main kind of salt is sodium chloride with the chemical formula NaCl. It is formed when hydrochloric acid is added in sodium hydroxide.

Answer:

Explanation:

Primary and secondary succession occur after both human and natural events that cause drastic change in the makeup of an area. Primary succession occurs in areas where there is no soil and secondary succession occurs in areas where there is soil.

In primary succession, newly exposed or newly formed rock is colonized by living things for the first time. In secondary succession, an area previously occupied by living things is disturbed—disrupted—then recolonized following the disturbance.

Hope this helped :)

-Akito

Answer:

[tex]from \: the \: equation : \\ 1 \: mole \: of \: methane \: is \: produced \: by \: 2 \: moles \: of \: hydrogen \\ 8.7 \: moles \: of \: methane \: will \: produce \: (8.7 \times 2) \: moles \\ = 17.4 \: moles \\ 1 \: mole \: of \: methane \: weighs \: 16 \: g \\ 17.4 \: moles \: will \: weigh \: (17.4 \times 16) \: g \\ = 278.4 \: g[/tex]

Answer:

The unknown amount of potassium chloride is 13.6 grams.            

Explanation:

The reaction of 14 grams of KNO₃ with KCl produces a total mass of 27.6 grams of the products.

The law of conservation of mass tells us that the total mass of the reactants must be the same that the total mass of the products. So, we can find the mass of KCl as follows:

[tex] m_{r} = m_{p} [/tex]

Where r is for reactants and p is for products

[tex] m_{KNO_{3}} + m_{KCl} = m_{p} [/tex]

[tex] 14 g + m_{KCl} = 27.6 g [/tex]

[tex] m_{KCl} = 27.6 g - 14 g = 13.6 g [/tex]

Therefore, the unknown amount of potassium chloride is 13.6 grams.           

I hope it helps you!

Answer:

A catalyst is a chemical substance that alters the rate of chemical reaction not consumed by the reaction. Hence, a catalyst can be recovered chen unchanged at the ends of chemical reaction. Catalyst can be divided into two typ the basis whether it speeds up or slowdowns the rate of chemical reaction. The positive catalyst and negative catalyst.

Answer:

A catalyst is a chemical substance thatalters therate of chemical reactions not consumed by the reactions.

Answer:

6. ................................

Answer:

54 moles

Explanation:

The ratio of AIF3 to CaF2 is, as seen in the equation, 2:3. This means you multiply 36 moles by 3, and then divide it by 2. This equals 54 moles of CaF2.

Answer:

3 M

Explanation:

Molarity equation: M = n/v

n = moles of solute

v = liters of solution

9 moles of NaCl / 3 L

9/3 = 3 M

Answer:

T₂ = 182 K

Explanation:

Given that,

Initial pressure, P₁ = 120 kPa  

Initial temperature, T₁ = 0˚C = 273 K

We need to find the final temperature when the pressure is 80 kPa.

We know that, Gay Lussac's Formula is :

[tex]\dfrac{P_1}{T_1}=\dfrac{P_2}{T_2}\\\\T_2=\dfrac{P_2T_1}{P_1}\\\\T_2=\dfrac{80\ kPa\times 273}{120\ kPa}\\\\T_2=182\ K[/tex]

So, the new temperature is equal to 182 K.

Answer:

c) evaporating

d) has no salt in it

Explanation:

no problem anytime. just try to understand the concept and it will definitely help if you read the question more than once.

the change of state that is happening the surface of the sea water is evaporating. This is because it allows from liquid to vapour/ gas based on the diagram

the water in the test tube is different from sea water because it is pure meaning no salt. It's evident based on figure 2 because sea water is full of solutions and mixtures.