3 years ago

Can you help me with scientific tools because I'm struggling and this is 90% of my grade

1 answer:

3 0

1) One piece of science equipment that you might not have been introduced to is the graduated cylinder. measure volume of a liquid.
2) Although you need to be careful when using a Bunsen burner, I think it is one of the most interesting lab tools to use. A Bunsen burner is a heat source used to raise the temperature.

You might be interested in

the position-time graph shows the motion of four people. label the lines on graph need on the motion description in this table.

sertanlavr [38]

Line 1: straight horizontal line
Line 2: straight line at a slope
Line 3: exponential growth curve
Line 4: the topmost curve (the one that initially increases but then starts levels out)

3 0

2 years ago

100.mL of a .795 M solution of KBr is diluted to 500.mL. what is the new concentration of the solution?

kap26 [50]

Answer:

0.159 M

Explanation:

convert from mL to L then use the equation:

M1V1 = M2V2

rearrange to find M2

$\frac{M1V1}{V2} = M2$

$\frac{(0.795 M)(0.100 L)}{0.500 L} = 0.159 M$

4 0

2 years ago

IM JUST GIVING AWAY POINTS!!!!!!

myrzilka [38]

2.5128e10 is the answer

6 0

2 years ago

Read 2 more answers

How many quantum numbers are used to describe the properties of electrons in atomic orbitals?

LenaWriter [7]

4 Quantum numbers are used

1.Azimuthal
2.Principal
3.Spin
4.Magnetic

6 0

2 years ago

Using resonance, select the most acidic protons in the hexane-2,4-dione molecule. The most acidic proton is the one that, upon r

kondor19780726 [428]

Answer:

Protons 4 or 5 are most acidic.

Explanation:

As mentioned there are four types of hydrogen in Hexane-2,4-dione.

The numbering are shown in the figure for your better understanding.

As shown in the figure if we remove the proton from carbon number 3 (protons number 4 or 5), it will result in formation of a carbanion. This carbanion is stabilized due to presence of -I group oxygen and there is possibility of resonance (as shown).

Thus protons 4 or 5 are most acidic.

5 0

3 years ago