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Advocard [28]
3 years ago
14

Pls help me on this it’s past due ty

Chemistry
1 answer:
mihalych1998 [28]3 years ago
6 0

Answer:

sorry

Explanation:

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There are 34 questions on a test. John answers 22 correctly. What is Johns percent error?
VARVARA [1.3K]

Answer:

35 . 29%

Explanation:

no. of questions in test =34

no. of questions answered correctly =22

therefore, no. of questions answered incorrectly =34 - 22

=12

error percentage = 12/34 * 100

=35 .29 %

4 0
2 years ago
Which statement correctly describes the relationship between thermal energy and particle movement?
Hunter-Best [27]

As thermal energy increases and there is more particle movement.

  • Thermal energy is the energy possessed by the system or object due to the movement of its particles.
  • For example kinetic energy of the particles
  • Higher the motion of the particles more will be the thermal energy of the system or object and vice-versa
  • It is also termed as heat energy of a system or object
  • The higher the thermal energy, the higher will be the temperature and vice versa.

So, from this, we can conclude that as thermal energy increases and there is more particle movement.

Learn more about thermal energy here:

brainly.com/question/21162439?referrer=searchResults

brainly.com/question/11278589?referrer=searchResults

5 0
2 years ago
What does iron do for the human body(two paragraphs)
Nitella [24]

Answer:

Hey mate....

Explanation:

This is ur answer.....

<em>Iron is an essential element for blood production. About 70 percent of your body's iron is found in the red blood cells of your blood called hemoglobin and in muscle cells called myoglobin. Hemoglobin is essential for transferring oxygen in your blood from the lungs to the tissues. Myoglobin, in muscle cells, accepts, stores, transports and releases oxygen.</em><em> </em><em>About 6 percent of body iron is a component of certain proteins, essential for respiration and energy metabolism, and as a component of enzymes involved in the synthesis of collagen and some neurotransmitters. Iron also is needed for proper immune function.</em><em> </em><em>About 25 percent of the iron in the body is stored as ferritin, found in cells and circulates in the blood. The average adult male has about 1,000 mg of stored iron (enough for about three years), whereas women on average have only about 300 mg (enough for about six months). When iron intake is chronically low, stores can become depleted, decreasing hemoglobin levels.</em><em> </em><em>When iron stores are exhausted, the condition is called iron depletion. Further decreases may be called iron-deficient erythropoiesis and still further decreases produce iron deficiency anemia.</em>

Hope it helps!

Brainliest pls!

Follow me! :)

6 0
3 years ago
If something has an actual yield of 2.5 grams and a theoretical yield of 7.5 grams, what is the percent yield?
aivan3 [116]
2.5/7.5 = 0. 3333 * 100% = 33.33%
8 0
3 years ago
Which group of lists below is made up of only pure substances?
german

Answer:

the answer is compounds

5 0
2 years ago
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