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2 years ago

1. Which statement is always true when nuclear fusion occurs?

Chemistry

1 answer:

Vladimir79 [104]2 years ago

4 0

Answer:

1. The combined number of protons and neutrons remains constant.

2. There are two atoms with mass numbers of 2.

3. It is the number of protons plus neutrons.

4. A nucleus with a greater mass than any of the reactants will be produced.

5. Fusion reactions in the sun convert small amounts of matter into large amounts of energy.

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Of the first 103 elements, how many have just ine letter in their symbol

malfutka [58]

Answer:

14 elements.

Explanation:

boron

carbon

fluorine

hydrogen

iodine

nitrogen

oxygen

phosphorus

potassium

sulfur

tungsten

uranium

vanadium

yttrium

4 0

3 years ago

Formed when chemicals in the air get into rain and up the acidity levels

snow_lady [41]

Acid Rain is formed when chemicals in the air get into rain and up the acidity levels!!!!!!

Hope this helps guys!

4 0

3 years ago

Why and how do ions form?

Zanzabum

Answer and Explanation:

Ions are electrically charged particles that are formed from the removing and addition of electrons. It can be a positively or negatively charged atom.

8 0

3 years ago

What is the concentration of H+ ions at a pH = 11?

natta225 [31]

Answer:

$\huge 1 × {10}^{-11} \: \: M$

Explanation:

The pH of a solution can be found by using the formula

$pH = - log [ {H}^{+} ]$

Since we are finding the H+ ions we find the antilog of the pH

So we have

$11 = - log({H}^{+}) \\ {H}^{+} = {10}^{ - 11}$

We have the final answer as

$1 × {10}^{-11} \: \: M$

Hope this helps you

6 0

3 years ago

HELP PLS EXPLAIN!

Step2247 [10]

Answer:

Space exploration thus supports innovation and economic prosperity by stimulating advances in science and technology, as well as motivating the global scientific and technological workforce, thus enlarging the sphere of human economic activity.

6 0

3 years ago

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