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3 years ago

What is the practical use of scientific knowledge to solve everyday problems and improve lives?

Chemistry

1 answer:

Aleks04 [339]3 years ago

5 0

A. Research is the answer

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Which expression correctly represents a balanced reduction half-reaction?

jolli1 [7]

For answering for the question, there exists four choices:
1) Na+ + e- -------------- Na
2) Na --------Na+ + e-
3) Cl2 + 2e- ------------ Cl-
4) 2Cl- ---------Cl2 + 2e-

reduction half-reaction general formula is
oxidant + e - or + -------- Product

so in our case the answer is
1) Na+ + e- -------------- Na (exactly balanced)

6 0

3 years ago

2. Lysosomes operate within the cell bye to the

Marat540 [252]

Answer:

Explanation:

Lysosomes contain digestive enzymes which are used for digestion of food and dead organelles. It fuses with a vacuole which contain the targeted material(food or dead organelles) and digests the material inside it

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3 years ago

What cell type is found in the nervous tissue

marishachu [46]

Answer:

Nervous tissue is composed of neurons, also called nerve cells, and neuroglial cells

Explanation:

brainliest

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3 years ago

How many km are in 5.6mm? 5.6x103 5.6x10-6 5.6x10-3 5.6x106

il63 [147K]

Hey there :)

Question: How many km are in 5.6mm?

=>5.6x10^3

=>5.6x10^-6

=>5.6x10^-3

=> 5.6x10^6

Answer:-

$5.6 \times 10^{ - 6}$

Explanation:-

By using the formula-

$1millimeter = \frac{1}{1000000}$

As 1 with 6 zeros, we convert it into exponential form.

$= > \frac{1}{10^{6} }$

As this above value is fraction type, we can do the reciprocal, thus, the exponent gets a negative value.

$= > 10^{ - 6}$

Now combine with given question.

$= > 5.6 \times 10^{ - 6}$

7 0

2 years ago

Which of the following characteristics do all of the outer planets have in common? A. They lack moons. B. They are small and den

Bogdan [553]

I think the correct answer from the choices listed above is option D. Outer planets are mostly made up of gases and are huge in size. These gases are hydrogen and helium. These outer planets are Saturn, Jupiter, Uranus, and Neptune. Hope this answers the question.

8 0

3 years ago

Read 2 more answers