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Phantasy [73]
3 years ago
11

What does quantities data mean?

Chemistry
1 answer:
aliina [53]3 years ago
8 0
Data that can be measured, deals with numbers and length,height,area,volume etc.
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Which of these mixtures is a suspension?
natita [175]

Answer:

D. apple juice

Explanation:

8 0
2 years ago
A solar panel combines multiple photovoltaic cells. Which type of energy is used to power a solar panel?
Softa [21]

Explanation:

<u>Photovoltaic means electricity from light</u>

photo = <em>light </em> voltaic = <em>electricity</em><em> </em>

<u>SUNLIGHT</u> is the answer

Hope this is correct

HAVE A GOOD DAY!

3 0
3 years ago
Read 2 more answers
As you move from left to right across a period, what happens to the atomic radii?
GrogVix [38]

Answer:

They decrease, because of the stronger effective nuclear charge.

Explanation:

  • Atomic radii decreases from left to right across a period.
  • This is due to the increase in the no. of protons and electrons through the period.
  • One proton has a greater effect than one electron.
  • So, electrons are attracted towards the nucleus and resulting in a smaller atomic radii.

<em>Thus, the right choice is: They decrease, because of the stronger effective nuclear charge.</em>

<em></em>

3 0
3 years ago
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7. A cyclist starting from rest accelerates at a rate of 6 m/s until she reaches 30 m/s. How long
Hunter-Best [27]

Answer:

Explanation:

The given values are:

a= 6m/s²

u= 0 m/s

v = 30 m/s

t= ?

The formula is :

a=\frac{v-u}{t}

thus,

t=\frac{v-u}{a}\\t=\frac{30-0}{6}\\t= 5 seconds

4 0
3 years ago
How would you prepare a 1 L solution of 3 M MgO?
oksano4ka [1.4K]

Answer:  175.35g

Explanation:  A 3 M solution has 3 moles of solute per litre.

The mass of one mole of NaCl equals the MW of NaCl MW =  35.45 + 23 =58.45 g/mol

The mass of 3 moles is 58.45 g/mol ×3 mol=175.35 g NaCl  or  200 g rounded to one sigfig.

8 0
3 years ago
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