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7nadin3 [17]
3 years ago
11

3. The formula for table salt is NaCl. Is table salt ionic or covalent? Explain

Chemistry
1 answer:
d1i1m1o1n [39]3 years ago
7 0

Answer:

it's an ionic compound

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If the pressure of a gas sample is quadrupled and the absolute temperature is doubled, by what factor does the volume of the sam
Natasha_Volkova [10]

Answer:

D) 1/2

Explanation:

Using Ideal gas equation for same mole of gas as

\frac {{P_1}\times {V_1}}{T_1}=\frac {{P_2}\times {V_2}}{T_2}

Given,

P₂ = 4P₁

T₂ = 2T₁

Using above equation as:

\frac {{P_1}\times {V_1}}{T_1}=\frac {{P_2}\times {V_2}}{T_2}

\frac {{P_1}\times {V_1}}{T_1}=\frac {{4\times P_1}\times {V_2}}{2\times T_1}

V_2=\frac{1}{2}\times V_1

<u>The volume change by half of the original.</u>

7 0
4 years ago
Read 2 more answers
Solve the equation for x.4+2(x-4)=-7(x+7)​
OverLord2011 [107]

Answer:

x=-5

Explanation:

we have

4+2(x-4)=-7(x+7)

Solve for x

That means----> Isolate the variable x

Applying the distributive property both sides

4+2(x)+2(-4)=-7(x)-7(7)

Remember that

(+1)(-1)=-1

4+2x-8=-7x-49

Combine like terms left side

2x-4=-7x-49

Adds 7x both sides

2x-4+7x=-7x-49+7x

9x-4=-49

Adds 4 both sides

9x-4+4=-49+4

9x=-45

Divide by 9 both sides

x=-5

4 0
3 years ago
What happens to a water bottle in a freezer and why
Andrews [41]
The water well begin to freeze and turn into soild. why? because the temperature of the the freezer is getting the water bottle cold so when that cold temperature hits that that bottle which has liquid in it so you should know that when liquid is into cold air it well so be soild so when you put the water bottle in the freezer it will be soild. 
and also remember gas - liquid - soild gas change to liquid by hot air  and liuid change to soild by clod air 
hoped i helped 
5 0
4 years ago
What is the number of valence electrons in a nitrogen atom in the ground state
ddd [48]

Answer: 5

Explanation:

It just is

6 0
3 years ago
All of the following are abiotic factors in an ecosystem except:
vovangra [49]
The answer is Algae.

<span>Abiotic factors are non-living things of an ecosystem. Abiotic factors include landscape, climate, pH, salinity and other physical features of the ecosystem. On the other hand, there are b</span>iotic factors. Biotic factors are living things in the ecosystem. Those are plants, animals, and other organisms. Since Algae are living-things, they are biotic factors unlike pH, salinity, and climate which are abiotic factors.
8 0
4 years ago
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