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wolverine [178]
3 years ago
6

Scientists will often use a(n) _________________, an object that helps explain ideas about the natural world.

Chemistry
2 answers:
Nadya [2.5K]3 years ago
7 0

Scientists will often use a(n) _________________, an object that helps explain ideas about the natural world.

The answer is model.

sweet-ann [11.9K]3 years ago
4 0

Answer:

model

Explanation:

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____ is the amount of matter in an object. Question 1 options: Matter Gravitational Pull Mass Weight
saw5 [17]

Answer:

mass or matter

Explanation:

i think

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If an atom of tin has a mass number of 118 and an atomic number of 50, how many electrons does it have? 50 168 118 68
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NaCl and HCl both have chlorine but are different types of bonds.
Tema [17]

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Please help me with these questions I don't get science
LiRa [457]
Proteins are made of carbon, hydrogen,oxygen, and nitrogen (CHON). Nucleic acids such as DNA and RNA contain carbon,hydrogen, oxygen, nitrogen, and phosphorus(CHON P). The body also needs trace amounts of other elements such as calcium,potassium, and sulfur for proper functioning of muscles, nerves, etc.
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3 years ago
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A sample of a given compound contains 13.18g of carbon and 3.32g of hydrogen. What is the percent composition of the compound?
GarryVolchara [31]

The percent composition of the compound is 79.87 % of carbon and 20.12% of hydrogen

Explanation:

Given:

mass of carbon = 13.18 grams

mass of hydrogen = 3.32 grams

percent composition of compound =?

From the given data total mass of the compound is calculated

13.8 + 3.32

= 16.5 grams

The individual percentage of hydrogen and carbon will be calculated as:

percent composition  = \frac{individual mass of the element}{total mass of the compound} x 100

For carbon,

 \frac{13.18}{16.5}x 100

percent composition of carbon = 79.87 % of carbon.

for hydrogen:

\frac{3.32}{16.5}

= 20.12 % of hydrogen

In the compound given 79.87 % of carbon and 20.12% of hydrogen is present.

8 0
3 years ago
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