1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
-Dominant- [34]
3 years ago
11

Please help me answer these questions

Chemistry
1 answer:
NikAS [45]3 years ago
8 0

Answer: B, heredity

Explanation:

You might be interested in
Study this diagram of a flowering tree’s life cycle. What is the error in the diagram? A. stage 1 B. stage 2 C. stage 3 D. stage
Ksivusya [100]

c. . stage 3 hoped i helped with the question

6 0
3 years ago
Read 2 more answers
A teniss ball has more mass than a gold ball because it?
kakasveta [241]

Hello There,

I believe you stated your question wrong. This is not possible. A tennis ball can't have more mass than a gold ball.

If you MEANT to say:

A golf ball has more mass than a tennis ball because

then your answer would be:

It contains more matter


Best Of Luck,

- Kai -

6 0
4 years ago
If this atom were to form an ion, its charge would be A. 0 B. -1 C. +1 D. +2
Alex Ar [27]

Explanation:

When atoms forms ion, they either lose or gain electrons.

In an atom, we have three subatomic particles;

  • Protons are the positively charged particles
  • Electrons are the negatively charged particles
  • Neutrons carry no charges.

A neutral atom has equal number of protons and electrons.

A positively charged  atom has more protons than electrons which implies that they have lost electrons.

A negatively charge atom has more electrons than protons suggesting that they have gained more electrons.

If we are given Na, it will for Na⁺ when it loses  the electron in its outermost shell. Hence the number of protons is now more and the atoms is positively charged.

learn more:

Anions brainly.com/question/4670413

#learnwithBrainly

7 0
4 years ago
A line in the Brackett series of hydrogen has a wavelength of 1945 nm. From what state did the electron originate?
fiasKO [112]
Rydberg Eqn is given as:
 1/λ = R [1/n1^2 - 1/n2^2] 
<span>Where λ is the wavelength of the light; 2626 nm = 2.626×10^-6 m </span>
<span>R is the Rydberg constant: R = 1.09737×10^7 m-1 </span>
<span>From Brackett series n1 = 4 </span>
<span>Hence 1/(2.626×10^-6 ) = 1.09737× 10^7 [1/4^2 – 1/n2^2] </span>
<span>Some rearranging and collecting up terms: </span>
<span>1 = (2.626×10^-6)×(1.09737× 10^7)[1/16 -1/n2^2] </span>
<span>1= 28.82[1/16 – 1/n2^2] </span>
<span>28.82/n^2 = 1.8011 – 1 = 0.8011 </span>
<span>n^2 = 28.82/0.8011 = 35.98 </span>
<span>n = √(35.98) = 6</span>
4 0
3 years ago
Read 2 more answers
If 5.60 mol of a substance releases 14.9 kJ when it decomposes, what is ΔH for the process in terms of kJ/mol of reactant?
lisov135 [29]

Answer:

The correct approach is "-2.67 kJ/mole". A further solution is described below.

Explanation:

The given values are:

No. of moles,

= 5.60 mol

Substance releases,

ΔH = 14.9 kJ

Now,

The ΔH in terms of kJ/mol will be:

= \frac{\Delta H}{5.60}

On putting the given values of ΔH, we get

= \frac{-14.9}{5.60}

= -2.67 \ kJ/mole

8 0
3 years ago
Other questions:
  • A 250. ml sample of 0.0328m hcl is partially neutralized by the addition of 100. ml of 0.0245m naoh. find the concentration of h
    12·1 answer
  • What is the best description of the acceleration of an object?
    12·2 answers
  • What is the fuel used in a fuel-cell automobile
    8·1 answer
  • Help!
    8·1 answer
  • M
    13·1 answer
  • Charges build in storm _________ and then jump to the ground
    13·2 answers
  • Given the double displacement reaction below, which of the products would be soluble in water and which would likely form a soli
    13·2 answers
  • *<br> Why does the mass of a substance remain the same after a chemical reaction?
    5·1 answer
  • For the reaction
    14·1 answer
  • Do cells have atoms?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!