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3 years ago

A makes it easier to understand things that are too small too large or to observe directly

1 answer:

6 0

Microscope = It enables small things to paper bigger, thus enabling us to understand at a microscopic level, thus improving our understand of HOW it happens

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What is this please helppp

svetoff [14.1K]

Answer:

it looks like deoxyribose...im not sure tho

Explanatio

7 0

3 years ago

an element has an isotope with a mass of 203.973 amu and and abundance of 1.40%. another isotope has a mass of 205.9745 amu with

ryzh [129]

Answer is: the average atomic mass 217.606 amu.

Ar₁= 203.973 amu; the average atomic mass of isotope.

Ar₂ = 205.9745 amu.

Ar₃ = 206.9745 amu.

Ar₄ = 207.9766 amu.

ω₁ = 1.40% = 0.014; mass percentage of isotope.

ω₂ = 24.10% = 0.241.

ω₃ = 22.10% = 0.221.

ω₄ = 57.40% = 0.574.

Ar = Ar₁ · ω₁+ Ar₂ · ω₂ + Ar₃ · ω₃ + Ar₄ · ω₄.

Ar = 203.973 amu · 0.014 + 205.9745 amu · 0.241 + 206.9745 amu · 0.221 + 207.9766 amu · 0.574.

Ar = 2.855 amu + 49.632 amu + 45.741 amu + 119.378 amu.

Ar = 217.606 amu.

But abundance of isotopes is greater than 100%.

It should be lead, with the fourth isotope weighs 207.9766 amu and an abundance of 52.40.

7 0

3 years ago

Viruses are not considered living things because they are not cellular and they __________.

Virty [35]

Must have host cell to reproduce

8 0

3 years ago

A glass jar is sealed, trapping air inside. The jar warms up after it is left ourside in the sun. What will happpen to the press

amid [387]

Answer:

the particles start to spread out and cause it to get warmer

Explanation:

7 0

3 years ago

Are plants and animal pH sensitive?

Rudiy27

Answer:

Plants and animals are pH sensitive. The growth of plants is dependent on the nature of the soil. If the pH of the soil is greater than 7 and is alkaline, then the plants cannot grow in the soil.

Explanation:

6 0

3 years ago