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Diano4ka-milaya [45]

3 years ago

9

In this picture below one object is attractive to another by-

1 answer:

NeX [460]3 years ago

6 0

Either air pressure or gravity. I would say its gravity because of the force of two object attracting each other.

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lions [1.4K]

Sun, use fusion to combine hydrogen atoms into helium atoms,

5 0

3 years ago

Read 2 more answers

Water has a high specific heat because: Select one: a. it is a poor insulator b. hydrogen bonds must be broken to raise its temp

Crank

<h2>The required "option is b) hydrogen bonds must be broken to raise its temperature.</h2>

Explanation:

Water has high specific heat due to hydrogen bonds present in it.
The Ionisation of water does not affect the specific heat of the water.
On decreasing the temperature, there is the formation of bonds hence option (d) is wrong.
On increasing the temperature, there is the breaking of bonds hence option (b) is correct.

3 0

3 years ago

If 1,079.75 Joules of heat are added to 77.75 grams of water, by how many degrees Celsius would the water increase? Assume water

djyliett [7]

Answer:

If 1,079.75 Joules of heat are added to 77.75 grams of water, by 3.32 degrees Celsius the temperature of water will increase

$\Delta T=3.32 C^{0}$

Explanation:

$q = mC\Delta T$

Here , q = heat added / removed from the substance

m = mass of the substance taken

$\Delta T$ = Change in temperature

C = specific heat capacity of the substance

In liquid state the value of C for water is :

$4.18 J/gC^{0}$

Given values :

q = 1079.75 J

m = 77.75 gram

Insert the value of C, m , q in the given equation

$q = mC\Delta T$

on transposing ,

$\Delta T=\frac{q}{mC}$

$\Delta T=\frac{1079.75}{77.75\times 4.18}$

$\Delta T=3.32 C^{0}$

3 0

3 years ago

According to table f which ions combine with chlorine ions to form an insoluble compound 1- Fe2+ions.

n200080 [17]

4- Ag+ions thats the answer i hope its correct

7 0

3 years ago

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What process do plants undergo to produce chemical energy?

Ahat [919]

Answer:

i think photosynthesis

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3 years ago