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Rina8888 [55]
3 years ago
7

38 points!! >:D

Chemistry
2 answers:
Sav [38]3 years ago
8 0

Answer: which*

Explanation:

VashaNatasha [74]3 years ago
3 0
Sound can travel through any medium
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What determines how ionic bonds will form?
Harrizon [31]

Answer:

I think the answer should be B. Number of valence electrons

8 0
3 years ago
2
nignag [31]

Answer:

D

Explanation:

I think it is D. Think about it- if a human jumps, they are less than the gravitational force. But, if you are greater than the gravitational force, I think you will go into space.

4 0
3 years ago
Two objects are brought into contact Object 1 has mass 0.76 kg, specific heat capacity 0.87) g'c and initial temperature 52.2 'C
taurus [48]

Answer:

T_F=77.4\°C

Explanation:

Hello there!

In this case, according to the given information, it turns out possible to set up the following energy equation for both objects 1 and 2:

Q_1=-Q_2

In terms of mass, specific heat and temperature change is:

m_1C_1(T_F-T_1)=-m_2C_2(T_F-T_2)

Now, solve for the final temperature, as follows:

T_F=\frac{m_1C_1T_1+m_2C_2T_2}{m_1C_1+m_2C_2}

Then, plug in the masses, specific heat and temperatures to obtain:

T_F=\frac{760g*0.87\frac{J}{g\°C} *52.2\°C+70.7g*3.071\frac{J}{g\°C}*154\°C}{760g*0.87\frac{J}{g\°C} +70.7g*3.071\frac{J}{g\°C}} \\\\T_F=77.4\°C

Yet, the values do not seem to have been given correctly in the problem, so it'll be convenient for you to recheck them.

Regards!

4 0
3 years ago
Can A fire extinguisher kill A Human Being
skad [1K]
Yes. it could kill someone because they are designed to take the oxygen out of the atmosphere to put out a fire, You can kill a person by suffixation, You can purchase a unit that gives off a harmless vapor that resembles white smoke though.
3 0
2 years ago
Read 2 more answers
How many electrons does N 3-have?​
Allushta [10]

Answer: 10 electrons

Explanation:

N represents Nitrogen. Nitrogen has an atomic number of 7, this means in ground state it has 7 electrons also.

But N-3, means Nitrogen has gained 3 more electrons. So, we have 10 electrons

8 0
3 years ago
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