4 years ago

I just want the answers

Chemistry

1 answer:

SOVA2 [1]4 years ago

3 0

Call me I will tell you

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Match the element with number of valence electrons

Alla [95]

Answer:

Oxygen-O = 6

Carbon C = 4

Gallium G = 3

Astatine A = 7

Arsenic As = 5

Potassium K = 1

Hydrogen H = 1

Helium H = 2

Explanation:

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2 years ago

When naming ionic compounds the ______________ is named first.

grandymaker [24]

The answer is metal. Metals are always named first in ionic compounds, like KNO3 for example. I hope this helps!

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3 years ago

The element least likely to form a bond is group

guapka [62]

Between phosphorous, sulfur, chlorine and argon, argon is the element that's the least likely to form an ionic bond with sodium.

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3 years ago

How much would the temperature of 275 g of water increase if 36.5 kj of heat were added?

Andrew [12]

<u>Answer:</u> The temperature increase will be 31.70°C.

<u>Explanation:</u>

To calculate the increase in the temperature of the system, we use the equation:

$q=mc\Delta T$

where,

q = Heat absorbed = 36.5 kJ = 36500J

m = Mass of water = 275 g

c = Specific heat capacity of water = $4.186J/g^oC$

$\Delta T$ = change in temperature = ? °C

Putting values in above equation, we get:

$36500J=275\times 4.186J/g^oC\times \Delta T\\\\\Delta T=31.70^oC$

Hence, the temperature increase will be 31.70°C.

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3 years ago

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What are the main components in dna

krek1111 [17]

Adenine , guanine, cytosine and thymine

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