3 years ago

What keeps galaxies togther? How?

Chemistry

1 answer:

aleksklad [387]3 years ago

8 0

Tough question, I would suggest using Google maybe, or just plain out asking your science teacher.

You might be interested in

When NADH donates two electrons to ubiquinone during respiration, ubiquinone isa. reduced.b. oxidized.c. phosphorylated.d. aerob

olga nikolaevna [1]

Reduced ... more electrons gain is a reduction

5 0

3 years ago

Calculate the pOH of a solution if the concentration of hydroxide ions (OH-) is 1.9 x 10-5M?

OLEGan [10]

Answer:

9.28

Explanation:

pOH refers to a measure of hydroxide ions concentration. pOH tells about the alkalinity of a solution. If pOH is less than 7 then aqueous solutions are alkaline, acidic if pOH is greater than 7 and neutral if pOH is equal to 7.

Concentration of the hydroxide ions = 1.9 x 10-5 M

pH = $-log(1.9\times 10^{-5})=4.72$

pOH = 14 - pH

=14 - 4.72 = 9.28

6 0

3 years ago

When sugar dissolves in water are covalent bonds broken?

Amanda [17]

Gle's cache of http://www.middleschoolchemistry.com/lessonplans/chapter5/lesson4<span>. It is a snapshot of the page as it appeared on 21 Oct 2017 07:24:57 GMT.</span>

7 0

3 years ago

When the Moon moves between the Sun and Earth and casts a shadow on Earth's surface, there is a(n)

allochka39001 [22]

Hi , the answer is D because the moon is blocking the sun s rays .
<span />

5 0

3 years ago

What is the empirical formula

lord [1]

A formula giving the proportions of the elements present in a compound but not the actual numbers or arrangement of atoms.

5 0

3 years ago