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MrRissso [65]
3 years ago
10

(35 POINTSSSS)help plzzz do as much as u can

Chemistry
1 answer:
grigory [225]3 years ago
5 0

Answer:

the required anions and cations are :

<h3> cation / anion</h3>

  • Al 3+ / Cl -
  • Al 3+ / PO3-
  • Be 2+ / I -
  • Sr 2+ / F -
  • K + / N 3-
  • Na + / S 2-
  • Ca 2+ / Cl -
  • Na + / Br2-
  • Mg 2+ / S 2-
  • Al 3+ / O 2-
  • Li + / P 3-
  • Cs + / N 3-
  • K + / I -
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A particle accelerates from rest with an acceleration of 8.0m/s2. Calculate its velocity after 150s. What kinematic formula must
Ipatiy [6.2K]

<u>Answer</u>:

Final velocity: 1200 m/s

<u>Explanation</u>:

Formula:   \overline{a} = \frac{v - v_0}{t} = \frac{\Delta v}{\Delta t}

<u>Where</u>:

a = average acceleration

v = final velocity

vo = starting velocity

t = elapsed time

<em>Here the final velocity is unknown which we have to find. The initial is 0 m/s</em>

<em>as it was at rest. The time taken: 150 seconds. Acceleration given 8.0 m/s²</em>

using the formula:

\overline{a} = \frac{v - v_0}{t}

8 = \frac{v - 0}{150}

v = 1200 m/s

4 0
2 years ago
Read 2 more answers
In what ways can the motion of an object change?
lozanna [386]

Answer:

A force can speed up or slow down an object. A force can change the direction in which an object is moving. A bigger force on an object will produce a bigger change in the motion. A heavier object requires a larger force than a lighter object in order to undergo the same change in motion.

Explanation:

Mark me brainlist, Please.

8 0
2 years ago
Distinguish between dunes and loess
agasfer [191]

Answer:

Dunes are loose sand hills.

Loess is a compacted wind-blown formation of sediment.

Explanation:

Sand dunes are, as their name implies, made of sand which is itself made of tiny quartz pieces. Sand dunes are present where there is a ready source of broken down sandstone or other type of rock and wind to transport the sand. The dunes are mobile and loose and migrate over time.

Loess comes in vast formations and was created in a very different way. In the last ice age, winds from the north carried sediments loosened and ground by glaciers southwards. There, the sediments accumulated in large formations and became compacted over time.

6 0
3 years ago
What is the approximate percentage of nitrogen in<br> the Earth's current atmosphere?
RoseWind [281]

Answer:

78% nitrogen

Explanation:

It has been long agreed upon that our atmosphere is highly abundant with nitrogen. Our atmosphere is composed of  78% nitrogen and then other gases follow such as 21% oxygen, 0.9% argon, and 0.03% carbon dioxide with very small percentages of other elements.

7 0
3 years ago
DNA is an example of a:<br> O A. Compound<br> B. Element<br> c. Mixture<br> D. Atom
Simora [160]

Answer:

The answer is option A.

Compound

Hope this helps you

5 0
3 years ago
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