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soldier1979 [14.2K]
3 years ago
9

Why is a complete atom electrically neutral?

Chemistry
1 answer:
IrinaK [193]3 years ago
8 0
Because it is balanced with protons and electrons
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3. What is the substance ozone?
Reptile [31]
Chlorofluorocarbons and other halogenated ozone depleting substances are mainly responsible for man made chemical ozone depletion.
8 0
3 years ago
1. A student determines the density of water to be 0.966g/ml at a
lions [1.4K]

<u>Answer:</u>

<em>The percentage error in the measurement is 2.4% </em>

<u>Explanation:</u>

The measurement made by the student is 0.966 g/cm^3.

But the actual value of density is 0.943 g/cm^3

The formula to calculate percentage error is  

percentage error = \frac{(measured \ value-actual \ value)}{(actual  \ value)} \times 100

Hence percentage error in this case is given by

<em>Percentage error = \frac{(0.966-0.943)}{0.943} \times 100 </em>

<em>= \frac{0.023}{0.943} \times 100=2.4% </em>

A physical quantities value will be determines by various quantities. If errors are made in measuring any of these quantities there will be error in the measurement of the final physical quantity as well.

Here density of a substance is a derived quantity determined by measuring mass and volume of  that substance.<em> If errors are made in mass and volume measurements the density value will also be erroneous. </em>

4 0
3 years ago
Draw the lewis dot structure of C4H8N2O3
Mrac [35]

Explanation:

Refer to the attachment

Extrashots:-

C4H8N2O3 is called asparagine .

7 0
3 years ago
Using your understanding of environmental science, make a hypothesis about how these six vehicles compare with regard to total l
gtnhenbr [62]

Answer:

Answer is option (d) (lowest to highest)

We have to rank the six vehicles according to the CO2 emission causing an impact on global warming. We know that burning of coal has the highest emission of all fossil fuel so EV powered by electricity from it will be the highest impact on global warming with highest CO2 emission, next is burning of gasoline, but the CO2 emission can be varied by the process of the burning in engines obviously a high-efficiency burning will have less impact than a regular standard engine. So, after ICEV standard will have high CO2 emission than the ICEV (high efficiency), now the next will be EV which is having its electricity supplied by a mix of resources, the production involves both fossil and non-fossil fuel which make this vehicle more environmentally friendly than the full fossil fuel-based. The ICEV with less driving has the second least emission because you are not burning the fuel like other vehicles because of not driving the vehicle. In the last will be the EV having powered by electricity of wind it will be the least emission almost zero because it using wind power to generate electricity. Hence arrangement comes like this, EV(wind), ICEV(less driving), EV (mix of sources), ICEV (high-efficiency), standard ICEV, EV (coal) from lowest to highest CO2 emission.

5 0
3 years ago
If there are 1,000 mg in 1<br> gram. Then how many mg are<br> in 2.5 grams?
mihalych1998 [28]

Answer:

1 gram =1000mg

Explanation:

Then 2.5g=2.5*1000

2500mg

7 0
3 years ago
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