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kobusy [5.1K]
4 years ago
6

Atoms of hydrogen can become helium atoms during a chemical reaction. True False

Chemistry
2 answers:
Cloud [144]4 years ago
5 0
Falsee

Can’t change into another.
marishachu [46]4 years ago
3 0

Answer:

false

in chemical reaction element doesnot change into another

Explanation:

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kumpel [21]
Ngl, there is no picture.
7 0
3 years ago
True/False Chemistry
PSYCHO15rus [73]

Answer:true

Explanation:

Because yea

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3 years ago
A sample of CaCO3(s) is introduced into a sealed container of volume 0.638 L and heated to 1000 K until equilibrium is reached.
JulsSmile [24]

Answer:

the mass of CaO present at equilibrium is, 0.01652g

Explanation:

K_p = [CO_2] = 3.8×10⁻²

Now we have to calculate the moles of CO₂

Using ideal gas equation,

PV =nRT

P = pressure of gas = 3.8×10⁻²

T = temperature of gas = 1000 K

V = volume of gas = 0.638 L

n = number of moles of gas = ?

R = gas constant = 0.0821 L.atm/mole.k

\frac{3.8 * 10^2 * 0.638}{0.0821 * 1000} \\= 2.95 * 10^-^4

Now we have to calculate the mass of CaO

mass = 2.95 * 10 ⁻⁴ × 56

= 0.01652g

Therefore,

the mass of CaO present at equilibrium is, 0.01652g

7 0
3 years ago
Scientists often _________________________ and _______________________ to help them interpret complex ideas. *
Ray Of Light [21]

Answer:

no sir

Explanation:

8 0
3 years ago
What are the two types of elements that make covalent bonds
velikii [3]

Answer:

Two non metal combined together and form the bond is called covalent bond

Note - yellow color molecules in pictures are non metal elements

example - co2 , so2,

Explanation:

6 0
3 years ago
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