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3 years ago

Match the term to the correct description

Chemistry

1 answer:

UkoKoshka [18]3 years ago

3 0

1. The flow of electrons

2. A loop that creates a pathway for electricity to follow.

3. A type of circuit with only one path for the electricity to follow

4. A type of circuit where the part of the loop is broken

5. Anything that slows the flow of electrons. In other words, it's what is using up the energy from the electric current

6. This is used to turn the flow of electrons on or off on a circuit

7. A loop that creates a pathway for electricity to follow

pretty sure that's right, I apologize if you get any wrong

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Which 2 elements when combined NOT alloys?

Volgvan

Answer:

Oxygen and sulfur

Explanation:

Alloys consist of metals fused together sometimes with additional components, such as carbon, to prevent metals from corrosion.

Oxygen and sulfur are two compounds consisting of non-metal atoms, O and S. Combining oxygen with sulfur would actually produce sulfur dioxide, a gas, in contrast to a metallic substance that is fused with some other metal or carbon.

That's the reason why combination of sulfur and oxygen wouldn't produce an alloy: it would produce a gas.

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3 years ago

Living sustainably means living on ____—the renewable resources such as plants, animals, soil, clean air, and clean water provid

irga5000 [103]

Answer:

natural income

Explanation:

Living sustainably in the 21st century means coexisting with the nature. In other words, to live sustainably means to meet the needs of the human without affecting or degrading the mother nature.

In the context, living sustainably means to live from the natural income from the nature's gift to us, using their natural resources and not hurting them or exploiting them. They may be resources from the soil, plants, clean air, animals, nature's clean water,etc.

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3 years ago

How many atoms is S are there?

Mashcka [7]

Answer:

Element Symbol # of Atoms

Iron Fe 2

Oxygen O 12

Sulfur S 3

4 0

3 years ago

Read 2 more answers

Astatine is a halogen with several isotopes that all have short half-lives. Which of the following combinations of mass number a

DedPeter [7]

Answer:

Astatine is a halogen with several isotopes that all have short half-lives.

Which of the following combinations of mass number and neutrons are possible as isotopes of astatine? Choose one or more:

i) A = 211, n = 127

ii) A = 210, n = 125

iii) A = 220, n = 134

iv) A = 207, n = 122

v) A = 209, n = 124

Explanation:

The mass number is the sum of the number of protons and the number of neutrons in an atom. $A=no.of protons+no.of neutrons\\=>no.of neutrons=A-no.of protons\\$

Atomic number of At(astatine ) =85

That means it has --- 85protons.

Its mass number A=210

Hence, the number of neutrons in At are:

$n=A-Z\\=>n=210-85\\=>n=125$

Second option:

ii) A=210 , n=125 is the answer.

4 0

3 years ago

Use the law of conservation of mass to answer the questions.

irinina [24]

Answer:

$\boxed {\boxed {\sf 28 \ grams}}$

Explanation:

The Law of Conservation of Mass states that mass cannot be created or destroyed.

In terms of a chemical reaction, the mass of the reactants has to equal the mass of the products.

The reactants are A and B. The mass of A is 19 grams and the mass of B is 24 grams. Add the masses.

19 g + 24 g= 43 g

This is the mass of the reactants.

The products and C and D. The mass of C is 15 grams. The mass of the products has to equal the mass of the reactants, which is 43 grams. Subtract 15 from 43 to find D's mass.

43 g - 15 g= 28 g

<u>28 grams</u> of D will be produced.

5 0

3 years ago