Only the ______

<img src="https://tex.z-dn.net/?f=%7B%20%5Cred%20%7B%5Csf%7BDefine%20%5C%3A%20Transportational%7D%7D%7D" id="TexFormula1" title=

Tanya [424]

<h3>Answer:</h3>

Easy!!

2+17=19

#hope that helps

4 0

2 years ago

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What is the mass of 1 mole of chlorine ion

rjkz [21]

Answer:

35.453 g

Explanation:

one mole of chlorine is 34.453 g

5 0

3 years ago

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Ted likes to run long distances. He can run 20 km 20 km20, start text, space, k, m, end text in 95 9595 minutes. He wants to kno

balu736 [363]

Answer:

The distance in kilometer that Ted will go if he runs at the same pace for 285 minutes is 60km

Step-by-step explanation:

It was given that Ted Ted runs 20 km in 95 minutes, so for us to know how many kilometers he runs at the same pace for 285 minutes by using proportion.

For Ted to run 20 km in 95 minutes.

$Speed=Distance/Time$

where given distance= 20km

Given time =95minutes

Speed=20/95 .............eqn(1)

To calculate the distance in kilometers Ted will go if he runs at the same pace for 285 minutes, then

Speed= K/225 ...............eqn(2)

Let us represent distance with 'K'

Given time 225minutes

Equating eqn(1) and eqn(2)

Hence the proportion model that Ted could use in modelling this situation is this;

$20/95=K/225$

Cross multiply

K×95=20×225

$K=60$

The distance in kilometer that Ted will go if

he runs at the same pace for 285 minutes is 60km

3 0

4 years ago

During the reaction P4 + 5O 2 P4 O10, 1.5 moles of product was made in 30 seconds. What is the rate of reaction?

Brut [27]

Answer:

850g/min

Explanation:

The reaction expression is given as:

P₄ + 5O₂ → P₄O₁₀

Given that:

Number of moles of product = 1.5moles

Time = 30s = 0.5min

Unknown:

The rate of the reaction = ?

Solution:

Convert the moles given to mass of the product.

So;

Mass of product = number of moles x molar mass

Molar mass of P₄O₁₀ = 4(31) + 10(16) = 284g/mol

Mass of product = 1.5moles x 284g/mol = 426g

So;

Reaction rate = $\frac{mass of product}{time}$ = $\frac{426}{0.5}$ = 850g/min

8 0

3 years ago

Select all that apply to physical and chemical properties ?

MaRussiya [10]

Answer:

• Chemical properties can only be observed during a chemical reaction:

Chemical properties can only be established by changing a substance's chemical identity, and chemical properties are different from physical properties, which can be observed by viewing or touching a sample. The internal qualities of a substance must be altered to determine its chemical properties.

Examples:

Some common chemical properties are heat of combustion, enthalpy of formation, toxicity,

and flammability, each of which will be covered in this lesson.

• Rusting of iron is the chemical reaction not physical because:

The rusting of iron is a chemical change because it is two substances reacting together to make a

new substance. When iron rusts, iron molecules react with oxygen molecules to make a compound

called iron oxide. Rusting would only be a physical change if iron molecules remained pure iron

throughout the process.

The equation for this reaction is: 4Fe+ 3O2 → 2Fe2O

• Melting and boiling points are physical properties:

Yes melting and boiling points are the physical properties.

Physical properties can be observed or measured without changing the composition of matter. Physical properties are used to observe and describe matter.

Physical properties include: appearance, texture, color, odor, melting point, boiling point, density, solubility, polarity, and many others.

• Mass and volume are chemical properties:

No mass and volume are the extensive physical properties of matter

All properties of matter are either physical or chemical properties and physical properties are either intensive or extensive.

Extensive properties, such as mass and volume, depend on the amount of matter being measured.

Intensive properties, such as density and color, do not depend on the amount of the substance present.

Physical properties can be measured without changing a substance’s chemical identity.

• Various components of a mixture do not combine chemically:

When various components of a mixture do not combine chemically it is a Combination of substances in which individual components do not combine chemically but retain their individual properties. Mixture in which one or more substances are distributed evenly in another substance.

When various components combine chemically then form chemical compounds that are often divided into two categories. Metals often react with nonmetals to form ionic compounds. These compounds are composed of positive and negative ions formed by adding or subtracting electrons from neutral atoms and molecules

7 0

3 years ago

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Only the _______