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svlad2 [7]
2 years ago
10

HELP!!! WILL MARK BRAINLIEST!!!

Chemistry
1 answer:
Sophie [7]2 years ago
8 0

Answer:

A , B, C

Explanation: D is a Diamagnetic

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Which particle has 2 neutrons
alexandr402 [8]

Answer: Alpha Particle

Explanation:

7 0
3 years ago
Read 2 more answers
Assume that the NO, concentration in a house with a gas stove is 150 pg/m°. Calculate the equivalent concentration in ppm at STP
jok3333 [9.3K]

Explanation:

It is known that for NO_{2}, ppm present in 1 mg/m^{3} are as follows.

                      1 \frac{mg}{m^{3}} = 0.494 ppm

So, 150 pg/m^{3} = \frac{150}{1000} mg/m^{3}

                       = 0.15 mg/m^{3}

Therefore, calculate the equivalent concentration in ppm as follows.

             0.15 \times 0.494 ppm

              = 0.074 ppm

Thus, we can conclude that the equivalent concentration in ppm at STP is 0.074 ppm.  

4 0
3 years ago
A force of 24 N acts on an 8 kg rock. What is the acceleration of the rock?
a_sh-v [17]

Answer: 3m/s2

Explanation:

Force =24 N

Mass = 8kg

Acceleration =?

Force = Mass x Acceleration

Acceleration = Force /Mass = 24/8 = 3m/s2

3 0
3 years ago
1. Why do you think pepper behaved the way it did in this experiment? What do you think that sugar and salt would do?
goblinko [34]

The experiment is related to the demonstration using Pepper. When pepper is spread over water, it clumps together This is because pepper is hydrophobic. When repeated with sugar and salt, they instantly dissolved. This means they are attracted to water. When also sprinkled on the surface of the water, it floats. This is caused by surface tension.

To break the surface tension of water, one can use aeration or the use of chemicals such as soap molecules which contain a long chain of hydrogen as well as carbon atoms.

<h3>What is surface tension?</h3>

Surface tension is the propensity of liquid surfaces at rest to shrink to the smallest feasible surface area. Surface tension permits items with a higher density than water, such as razor blades and insects (such as water striders), to float on the water's surface without being immersed.

A force tensiometer can be used to measure surface tension. The forces exerted on a probe situated at the liquid-gas or liquid-liquid interface are measured by these devices.

Learn more about Surface Tension:
brainly.com/question/11348644?
#SPJ1

6 0
11 months ago
For a constant waves speed,wavelength,of the wave increases with a(n)______
pochemuha

Answer:

higher frequency

Explanation:

8 0
3 years ago
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