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3 years ago

What is the difference between atoms of oxygen-16 and oxygen-17?

Chemistry

1 answer:

nadezda [96]3 years ago

7 0

Answer: Oxygen 17 is an isotope of Oxygen 16.

Explanation: An isotope is an element with more or less neutrons, and the 16 and 17 represent the mass of the oxygen molecule. So oxygen 17 has one more neutron than oxygen 16.

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Which statements describe phase changes? Check all that apply.

Tamiku [17]

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7 0

4 years ago

Read 2 more answers

In a closed container with a fixed volume, when the temperature of a gas doubles, the pressure of the gas is?

nevsk [136]

Answer:

The pressure of the gas is:

Doubled

Explanation:

Byole's Law = Pressure of fixed amount of gas is inversely proportional to Volume at constant temperature.

PV = k = constant

P1V1 = P2V2

Charle's Law: The volume of ideal gas at fixed pressure is directly proportional to Pressure.

V/T = constant

V1/T1 = V2/T2

On combinig the charles and byole's law , we get:

$\frac{P_{1}V_{1}}{T_{1}}=\frac{P_{2}V_{2}}{T_{2}}$

Now , According to question :

V2 = V1

T2 = 2(T1)

We have to find the relation between the pressure :

insert the value in the equation

$\frac{P_{1}V_{1}}{T_{1}}=\frac{P_{2}V_{2}}{T_{2}}$

$\frac{P_{1}V_{1}}{T_{1}}=\frac{P_{2}V_{1}}{2T_{1}}$

V1 and V1 & T1 and T1 cancels each other,

So we get

P2 = 2 P1

So the new pressure is double of the original pressure

3 0

3 years ago

7.6 The diagrams show the atoms in four different substances. Each circle represents an atom.

Illusion [34]

Answer:

A and C represent elements while B and D represent Compounds

Explanation:

chemical elements cannot be broken down into simpler substances by any chemical reaction. While A chemical compound is a chemical substance composed of many identical molecules composed of atoms from more than one element held together by chemical bonds

8 0

2 years ago

A metal oxide reacts chemically with water to form a base in the reaction shown below. If the temperature of the metal oxide and

Alla [95]

increase the rate of chemical change.

Explanation:

The reaction of the metal oxide with water to form a base in the presence of a spike in temperature will lead to an increase in the rate of chemical change.

Temperature change has considerable effect on reaction rates.

Temperature is directly proportional to the average kinetic energy of reacting particles.
Reaction rates varies directly with a spike in temperature.
It has been known that for every 10°C rise in temperature, above the room temperature, reaction rates become double or tripled.
Temperature increases the kinetic energy of each of the reacting particles.
Many of the reacting particles also acquires an energy greater than or equal to the activation energy of the reaction.
The frequency of ordinary collisions and effective collisions per unit time increases.

Learn more;

Activation energy brainly.com/question/3930233

#learnwithBrainly

6 0

3 years ago

Calculate the Molar Mass in g/mol of Ammonium Sulfate, (NH4)2(SO4)

saw5 [17]

Answer:

132g/mol

Explanation:

The problem here is to find the molar mass of the compound in g/mol

To solve this problem, we simply sum the atomic masses of the atoms in the compound:

(NH₄)₂ SO₄:

Atomic mass of N = 14g

Atomic mass of H = 1g

Atomic mass of S = 32g

Atomic mass of O = 16g

So;

Molar mass = 2[(14 + 4(1))] + 32 + 4(16) = 132g/mol

6 0

3 years ago