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Len [333]
4 years ago
7

true or false? the radioactive nature of a specific element does not change even if the element is chemically combined with anot

her element in a compound
Chemistry
1 answer:
julsineya [31]4 years ago
4 0

Answer: yes

Explanation:

even in combined state, radioactive elements continue to emit radiation spontaneously. For instance RaCl2 is still radioactive because of the radium content of the compound. This is applied positively in radionuclides used to study chemical reactions or uptake of certain elements in then body.

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Which essential fatty acid is rarely found to be deficient as it is typically consumed in abundance in the majority of diets?
Gre4nikov [31]

Answer:

B. Linoleic acid

Explanation:

Linoleic acid was discovered by chance in 1978 by Michael W. Pariza at the University of Wisconsin looking for mutagene formations in meat during cooking. It is called a conjugated linoleic acid (CLA) to a family of several isomers of linoleic acid (at least 13 are known), which are very common in vegetable oils (corn oil, soybean oil, sunflower oil, etc. ) and in animal fat.

The conjugated linoleic acid is formed by several types of fatty acids, all of them different in their chemical structure. CLAs are a “trans” fat that is not harmful to health, but instead is beneficial

Natural Sources of Conjugated Linoleic Acid

The main natural sources of conjugated linoleic acid in food are:

Beef

Butter

cheese

Lamb

Homogenized milk

Yogurt

7 0
4 years ago
A sample of lead has the density of 58 g/mL and a mass of 15.2g, what is the volume of the lead?
torisob [31]

Answer:

0.26 ml

Explanation:

d = m/V

=> V = m/d = 15.2/58 = 0.26 ml

4 0
1 year ago
The student repeated the experiment using a higher concentration of acid. The same volume of acid and the same mass of magnesium
Elena L [17]

Answer:

53 cm³

Explanation:

When the student used dilute sulfuric acid, the reaction was complete after 60 s, because no more hydrogen was formed in the next 10 s.

The reaction would go faster if the student used a more concentrated acid, but 53 cm³ of hydrogen is the most that would form.

5 0
4 years ago
How many moles are in a sample of 1.52 x 1024 atoms of mercury (Hg)?
OLEGan [10]

The answer is:

2.5 moles

The explanation:

when avogadro's number = 6.02 * 10^23

and when 1 mole of the sample will give → 6.02*10^23 atoms

So,        ??? mole of the sample will give→ 1.52 x 10^24 atoms

∴ number of moles = (1.52 X 10^24) * 1 mole / (6.02X10^23)

                                = 2.5 moles

8 0
3 years ago
A tissue that has the ability to contract is
bonufazy [111]
Muscle tissue

Explanation: Muscle tissue is a soft tissue that makes up most of the tissues in the muscles of the human muscular system. It is the only type of tissue that has cells with the ability to contract. Skeletal muscle tissue is attached to bones by tendons.
8 0
4 years ago
Read 2 more answers
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