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swat32
3 years ago
14

Does brainy work with out Wi-Fi?​

Chemistry
2 answers:
nikitadnepr [17]3 years ago
6 0

Answer:

No it does not i have tried it once before and it would not load for me and it froze the whole page site. But it might be different for you...

Explanation:

Anton [14]3 years ago
6 0
No it wont work without wifi
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Formula for Ni2+ and NO3
lyudmila [28]

The formula of a compound is Ni(NO_3)_2

Given:

The ions Ni^{2+} and NO_3^-

To find:

The formula for ions Ni^{2+} and NO_3^-

Solution:

The ion with a positive charge (cation) = nickel ion = Ni^{2+}

The ion with a negative charge (anion) = nitrate ion = NO_3^-

Valency on nickel ion = 2

Valency on nitrate ion = 1

Using the criss-cross method as shown in image

The formula of a compound : Ni(NO_3)_2

The name of a compound is nickel(II) nitrate

Ni^{2+}+2NO_3^-\rightarrow Ni(NO_3)_2

The formula of a compound is Ni(NO_3)_2

Learn more about ions here:

brainly.com/question/24389121?referrer=searchResults

6 0
3 years ago
Describe the pattern of temperature changes within the layers of the atmosphere. Why do you think temperature changes follow thi
ser-zykov [4K]

Answer:

The atmosphere refers to the gaseous envelope of earth, comprised of variable gases with definite proportions. The layers of the earth's atmosphere are as follows-

  • Troposphere- This layer starts from the ground and extends up to a height of about 10 km. Here, the temperature decreases with the increasing altitude. All the weather phenomenon takes place in this layer.
  • Stratosphere- It starts from 10 km and extends up to a height of about 50 km. Here the temperature increases as the altitude increase. This is because of the presence of the ozone layer that receives the harmful UV radiation emitted from the sun.
  • Mesosphere- This layer extends from a height of about 50 km to about 80 km above the earth's surface. Here, again the temperature decreases with the increasing altitude.
  • Thermosphere- This layer starts from a height of about 80 km and extends up to about 500 km above the ground surface. In this region again the temperature increases with the increasing elevation.
  • Exosphere- This layer ranges from about 500 km to 10,000 km above the earth's surface. Here, the temperature gradually increases with the increasing height.

This variation in temperature occurs because of the certain reason. In the troposphere and the mesosphere, the temperature decreases with height because the pressure and height are inversely proportional to each other. The stratosphere experiences increasing temperature because of the presence of the ozone layer that is responsible for holding the greenhouse gases and the harmful UV radiation. The thermosphere and the exosphere experience high temperatures because of the receiving of the direct sunlight. Due to these above reason, there occurs this temperature change in a unique pattern.

6 0
3 years ago
Which of the following statements is most accurate?
Troyanec [42]

Answer:

B

Explanation:

This is because exothermic reactions occurs when bnds are formed, and involves the release of energy.

Endothermic reaction occur when bonds are broken,and involves absorption of energy.

4 0
3 years ago
A student heats 10.52 g of sodium hydrogen carbonate in a crucible until the compound completely decomposes to sodium carbonate
saveliy_v [14]

Answer:

m_{Na_2CO_3}^{theoretical}=6.636gNa_2CO_3

Explanation:

Hello!

In this case, since the decomposition of sodium hydrogen carbonate is:

2NaHCO_3(s)\rightarrow Na_2CO_3(s)+H_2O(g)+CO_2(g)

Thus, since there is a 2:1 mole ratio between the sodium hydrogen carbonate and sodium carbonate, and the molar masses are 84.01 and 105.99 g/mol respectively, we obtain the following theoretical yield:

m_{Na_2CO_3}^{theoretical}=10.52gNaHCO_3*\frac{1molNaHCO_3}{84.01gNaHCO_3}*\frac{1molNa_2CO_3}{2molNaHCO_3}  *\frac{105.99gNa_2CO_3}{1molNa_2CO_3}\\\\ m_{Na_2CO_3}^{theoretical}=6.636gNa_2CO_3

Best regards!

4 0
2 years ago
What happens when the thermal energy of a substance increases?
MariettaO [177]

Answer:

Explanation:

Both motion of particles and temperature increase

8 0
3 years ago
Read 2 more answers
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