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egoroff_w [7]
3 years ago
10

What state of matter is hydrogen?

Chemistry
2 answers:
Charra [1.4K]3 years ago
8 0

Answer:

Gas but can be turned to liquid

Explanation:

Evgen [1.6K]3 years ago
4 0

Answer:

its a gas

Explanation:

Hydrogen  is the chemical element in the periodic table that has the symbol H and atomic number 1. At standard temperature and pressure it is a colorless, odorless, non-metallic, univalent, highly flammable diatomic gas. Hydrogen is the lightest and most abundant element in the universe.

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Question 3 of 10
beks73 [17]

Answer:c

Explanation:

7 0
3 years ago
Read 2 more answers
A sample of solid sodium hydroxide, weighing 13.20 grams is dissolved in deionized water to make a solution. What volume in mL o
andrew11 [14]

702 mL of 0.235 M H₂SO₄ solution are needed to neutralize the NaOH

Explanation:

When sodium hydroxide (NaOH) is neutralized by the sulphuric acid (H₂SO₄) the following chemical reaction occur:

2 NaOH + H₂SO₄ → Na₂SO₄ + 2 H₂O

number of moles = mass / molecular weight

number of moles of NaOH = 13.20 / 40 = 0.33 moles

Taking in account the chemical reaction, we devise the following reasoning:

if        2 moles of NaOH are reacting with 1 mole of H₂SO₄

then   0.33 moles of NaOH are reacting with X moles of H₂SO₄

X = (0.33 × 1) / 2 = 0.165 moles of H₂SO₄

molar concentration = number of moles / volume (L)

volume = number of moles / molar concentration

volume of H₂SO₄ solution = 0.165 / 0.235 = 0.702 L = 702 mL

Learn more about:

molar concentration

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8 0
3 years ago
Where are elements with similar chemical properties found on the periodic table?
LekaFEV [45]
All the members of a family of elements have the same number of valence electrons and similar chemical properties. The horizontal rows on the periodic table are called periods.
8 0
3 years ago
43.0 + 50.0 + 16.0= please answer with right amount of significant figures
zzz [600]

Answer:

109.0

Explanation:

When adding or subtracting values, you must round your answer to the same "place" as the measurement with its last significant figure <em>furthest to the left</em>.  

That is, you round off to the same number of decimal places as the measurement with the <em>fewest decimal places</em>.

43.<u>0 </u>

50.<u>0</u>

<u>+16.0 </u>

109.<u>0</u>

In each measurement, the “0” is the significant figure furthest to the left, so you round off the number to the “tenths" place. That's the last column that the measurements share.

109.0 → 109.0 (rounded to the “tenths” place)

In other words, you do not round off, and the sum has four significant figures.

8 0
4 years ago
Correct electron configuration for Boron
Alinara [238K]

<span>[He] 2s2 2p1 is your answer</span>

8 0
3 years ago
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