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3 years ago

How are atoms of the same element with different mass numbers called?

Chemistry

1 answer:

ELEN [110]3 years ago

7 0

Answer:

Isotopes

Explanation:

Isotopes are the same element with different masses because of the different number of neutrons. Also, the element doesn't change. If we change the protons, the element will change and then it won't be an isotope. Hope it helps!

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Why does weathering cause erosion

Naily [24]

Answer:Why does weathering cause erosion

Explanation:Organic weathering happens when plants break up rocks with their growing roots or plant acids help dissolve rock. Once the rock has been weakened and broken up by weathering it is ready for erosion. Erosion happens when rocks and sediments are picked up and moved to another place by ice, water, wind or gravity.

7 0

3 years ago

Read 2 more answers

Calculate the pH of a solution with an H+ ion concentration of 9.36 x 10-3 M ?

mel-nik [20]

Answer:

The answer is 2.03

Explanation:

The pH of a solution can be found by using the formula

$pH = - log [ {H}^{+} ]$

where H+ is the Hydrogen ion concentration

From the question we have

$pH = - log(9.36 \times {10}^{ - 3} ) \\ = 2.02872415...$

We have the final answer as

Hope this helps you

6 0

3 years ago

If an object what is 30 kg of mass is moving at 10 m/s to the right how much kinetic energy does it have

ki77a [65]

Explanation:

m=30

v=10

K.E=1/2mv^2

=1/2×30×10^2

=1/2×30×100

=1500 joule

6 0

3 years ago

Hello, <br><br> So I was wondering if this is correct... Is it?

Sonja [21]

Looks correct but the second to last I would of put abiotic and biotic factors but I don’t know what’s right for you

4 0

3 years ago

Read 2 more answers

Select the pair that has the larger atom or ion listed first.

Sedbober [7]

Answer:

Correc option: $Br^- \, , Kr$

Explanation:

size of atom : it says somthing about how many shell present in a particular atom or ion and it can also be evaluated on the basis of radius of atom.

Br^- and Kr has highest number of shell as compared to other group of species .

Na ,S , Mg ,P all are from 3rd period but Kr and Br^- in the 4th period so size of species of this group will more,

Size increases on increasring the shell number

3 0

3 years ago