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tatuchka [14]
3 years ago
14

Which of the following is NOT a physical property?

Chemistry
1 answer:
Assoli18 [71]3 years ago
7 0

Answer: I think it's D

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The radioisotope phosphorus-32 is used in tracers for measuring phosphorus uptake by plants. The half-life of phosphorus-32 is 1
Harman [31]

Answer:

54 days

Explanation:

We have to use the formula;

0.693/t1/2 =2.303/t log Ao/A

Where;

t1/2= half-life of phosphorus-32= 14.3 days

t= time taken for the activity to fall to 7.34% of its original value

Ao=initial activity of phosphorus-32

A= activity of phosphorus-32 after a time t

Note that;

A=0.0734Ao (the activity of the sample decreased to 7.34% of the activity of the original sample)

Substituting values;

0.693/14.3 = 2.303/t log Ao/0.0734Ao

0.693/14.3 = 2.303/t log 1/0.0734

0.693/14.3 = 2.6/t

0.048=2.6/t

t= 2.6/0.048

t= 54 days

3 0
2 years ago
The figure shows a nutrition label. How much energy does this food contain?
RoseWind [281]

Answer:

i need help with that too.

Explanation:

3 0
3 years ago
whoch of the following statments doesnt describe the structure of a atowhich of the following do not describe the structure of a
ra1l [238]

Answer : The incorrect option is, The most of the mass of the atom comes from the electron cloud.

Explanation :

There are three basic particles of an atom which are neutrons, protons and electrons.

The nucleus which is present in the center of an atom that contains the neutrons and the protons. The protons are positively charged and neutrons has no charge.

The outer region of an atom contains the electrons and the electrons are negatively charged.

As per given options, the statement which is the most of the mass of the atom comes from the electron cloud is incorrect statement because the most of the mass comes from the nucleus in which protons and neutrons are present.

5 0
2 years ago
Understanding Acceleration: Remember, acceleration is speeding up, slowing down, or changing direction.
Georgia [21]

Answer:

<h2>∞∞∞∞∞∞║⊕║Hello Person║⊕║∞∞∞∞∞∞</h2>

Your answer should be:

<em>1. No </em>

<em>2. Yes</em>

<em>3. No</em>

<em>4. Yes</em>

<em>5. No</em>

Explanation:

I hope this answered your question.

<em>Brainliest would be appreciated! </em>

<em>Have a wonderful day!</em>

6 0
3 years ago
Read 2 more answers
Choose all the answers that apply, The cardiovascular system transports material for the _____.
VikaD [51]

Answer:

vines or body vessels

Explanation:

Veins are vessels of the circulatory system that support circulation by conveying blood to the heart. Blood flowing through the circulatory system transports nutrients, oxygen, and water to cells throughout the body.

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3 years ago
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