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
I am Lyosha [343]
3 years ago
9

Determine the number of protons, electrons, and neutrons for cobalt with a charge of +6 and a mass of 61.

Chemistry
1 answer:
romanna [79]3 years ago
8 0
Protons-27
Electrons-21
Neutrons-32 (According to google), but 34 according to your set of numbers.
You might be interested in
You are asked to weigh approximately 0. 4g of acetylsalicylic acid to the nearest mg. When you enter the data in grams in your l
julia-pushkina [17]

Number of significant figures will be 1.

Given:

weight of acetylsalicylic acid = 0. 4g

Significant figures are the digits of value which carry meaning towards the resolution of the measurement. They are also called significant figures in chemistry. All the experimental measurements have some kind of uncertainty associated with them.

When we convert 0.4g acetylsalicylic acid to mg we get value 400mg

when we convert 400mg to gram we get value of 0.4 gram

Since 0 before a decimal is not significant so there is only one significant figure that is 4.

<h3>How do you determine the number of significant figures?</h3>
  • The zero to the left of a decimal value less than one is meaningless.
  • All trailing zeros that are placeholders are meaningless.
  • The presence of zeros between non-zero numbers is significant.
  • Non-zero numbers are all significant.
  • If a number contains more digits than the desired number of significant digits, it is rounded.
<h3>Why 'Hidden Figures' is so important?</h3>

It's an important story for a variety of reasons, and it comes at a time when people are looking to Hollywood more than ever to tell stories that represent them. Hidden Figures is that movie for many, and it's critical that everyone sees these women in action. This is why. This film tells a story that you've probably never heard before.

Learn more about Significant figure here:

<u><em>brainly.com/question/24491627</em></u>

#SPJ4

7 0
1 year ago
Which of these would describe a dish that contains bits of chocolate and nuts you can see?
Alenkasestr [34]

Answer:

mezcla homogénea

8 0
2 years ago
Read 2 more answers
Mixing magnesium and aluminum together produces an excellent lightweight material from which to make airplane parts what is this
Zielflug [23.3K]
<span>Mixing magnesium and aluminum together produces an excellent lightweight material from which to make airplane parts. This type of mixture is called an alloy. 
Alloy is a mixture of two elements, one of which is a metal. 
</span>
7 0
3 years ago
Read 2 more answers
pleeeaaaseeeee answer asappppppppp!!!!!!!!!!! Explain the processes of evaporation and condensation using the image above
goldfiish [28.3K]
In the lake that the rivers lead, water molecules evaporate into the sky and form clouds. In the sky, these water droplets condense and form clouds that will eventually rain.
5 0
3 years ago
Read 2 more answers
N2O5 decomposes to form NO2 and O2 with first-order kinetics. The initial concentration of N2O5 is 3.0 M and the reaction runs f
kow [346]

Answer : The final concentration of N_2O_5 is, 2.9 M

Explanation :

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant  = 5.89\times 10^{-3}\text{ min}^{-1}

t = time passed by the sample  = 3.5 min

a = initial concentration of the reactant  = 3.0 M

a - x = concentration left after decay process = ?

Now put all the given values in above equation, we get

3.5=\frac{2.303}{5.89\times 10^{-3}}\log\frac{3.0}{a-x}

a-x=2.9M

Thus, the final concentration of N_2O_5 is, 2.9 M

3 0
2 years ago
Other questions:
  • Please help me :(
    8·1 answer
  • What is this temperature in degree celsius of 77.2k
    14·1 answer
  • A compound has a molecular weight of 12.124 atomic mass units and the empirical formula C3H40. What is the molecular formula of
    14·1 answer
  • Explain why mass cannot be used as a property to identify a sample of matter.
    9·1 answer
  • Carbon monoxide gas reacts with hydrogen gas to form methanol via the following reaction: CO(g)+2H2(g)→CH3OH(g)CO(g)+2H2(g)→CH3O
    10·1 answer
  • The Heat of vaporization for NH3= 1360 J/g. Calculate the quantity of heat energy (in kJ)
    6·1 answer
  • Type the correct answer in the box.
    7·1 answer
  • Hidrogenofosfato de bario fórmula química
    13·1 answer
  • What is true about Carbon-14 and Carbon-12?
    13·1 answer
  • A copper sulfate solution contained 0.100 moles of copper sulfate dissolved
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!