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s344n2d4d5 [400]
3 years ago
13

Suppose that 27 g of each of the following substances is initially at 29.0 ∘C. What is the final temperature of each substance u

pon absorbing 2.30 kJ of heat?
gold
silver
aluminum
water
Chemistry
1 answer:
Leviafan [203]3 years ago
5 0

Answer:

The answer is going to be GOLD

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Why is the circulatory system so important? ( explain why in your own words please don’t copy and paste it I will know)
Afina-wow [57]

Answer:

The circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide. These roadways travel in one direction only, to keep things going where they should.

5 0
3 years ago
Part II. Formulas From Names
dybincka [34]

Answer:

CO₂

Explanation:

Carbon dioxide is a covalent compound. Two double bonds are formed between two oxygen atoms and one carbon atom. O=C=O

The covalent bond between them are polar.

Covalent bond:

It is formed by the sharing of electron pair between bonded atoms.  

The atom with larger electronegativity attract the electron pair more towards it self and becomes partial negative while the other atom becomes partial positive.

For example:

In carbondioxide the electronegativity of oxygen is 3.44 and carbon is 2.55. That's why electron pair attracted more towards oxygen, thus oxygen becomes partial negative and carbon becomes partial positive.  The electronegativity difference is 0.89 that's why it is polar covalent bond.

5 0
3 years ago
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When measuring a quanity what factor can impact the accuracy of the measurement?
kykrilka [37]
The precision of a tool can affect the measurement's accuracy. how specific the measurement can get (if it goes to the tenths place, hundredths, etc) can also affect the accuracy.
7 0
3 years ago
Answer the following questions that relate to electrochemical reactions. (a) Under standard conditions at 25˚C, Zn(s) reacts wit
Elanso [62]

Answer:

0.48 V

Explanation:

Zn(s) ------------> Zn^2+(aq) + 2e. Oxidation half equation (-0.76V)

Co^2+(aq) + 2e-----------> Co(s). Reduction half equation (-0.28)

Zn(s) + Co^2+(aq) -------------> Zn^2+(aq) + Co(s) overall redox equation

Zinc is the anode while cobalt is the cathode.

E°cell= E°cathode - E°anode

E°cell= -0.28-(-0.76)= 0.48 V

7 0
4 years ago
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Choose any electromagnetic wave we have discussed and write ONE PARAGRAPH telling me about the uses/benefits of that electromagn
andrew11 [14]

Answer:

Visible Light

Explanation:

It helps us see things around us!

5 0
3 years ago
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