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
Taya2010 [7]
3 years ago
7

After 4 half-lives 10 grams of uranium remains. How much uranium did you start with?

Chemistry
1 answer:
Free_Kalibri [48]3 years ago
4 0

Answer:

i think 40 grams

Explanation:

You might be interested in
Help this is an earthquake thing
mr Goodwill [35]

Answer:

im pretty sure its a push or pull thing

Explanation:

Tensional stress is the stress that tends to pull something apart. It is the stress component perpendicular to a given surface, such as a fault plane, that results from forces applied perpendicular to the surface or from remote forces transmitted through the surrounding rock.

5 0
3 years ago
What is the stoichiometric coefficient for oxygen when the following equation is balanced using the lowest whole-number coeffici
rodikova [14]

Answer:

Option (B) 7

Explanation:

C3H6O2(l) + O2(g) → CO2(g) + H2O(l)

To know the coefficient of O2 in the above equation, let us balance the equation.

The above equation can be balance as follow:

C3H6O2(l) + O2(g) → CO2(g) + H2O(l)

There are 3 atoms of C on the left side and 1 atom on the right side. It can be balance by putting 3 in front of CO2 as shown below:

C3H6O2(l) + O2(g) → 3CO2(g) + H2O(l)

There are 6 atoms of H on the left side and 2 atoms on the right side. It can be balance by putting 3 in front of H2O as shown below:

C3H6O2(l) + O2(g) → 3CO2(g) + 3H2O(l)

There are a total of 4 atoms of O on the left side and a total of 9 atoms on the right side. It can be balance by putting 7/2 in front of O2 as show below:

C3H6O2(l) + 7/2O2(g) → 3CO2(g) + 3H2O(l)

Multiply through by 2

2C3H6O2(l) + 7O2(g) → 6CO2(g) + 6H2O(l)

Now, the equation is balanced.

From the balanced equation above, the coefficient of O2 is 7.

7 0
3 years ago
How does the periodic table help I’m predicting the formula of a stable ionic compound
WITCHER [35]
The answer is B on edge


4 0
3 years ago
I. Give the name for the following compounds:
alexandr402 [8]

Answer:

Explanation:

1) MgBr₂

Magnesium bromide

2) Ca₃(PO₄)₂

Calcium phosphate

3) NO₂

Nitrogen dioxide

4) Ni₂(CO₃)₃

Nickel(III) carbonate

5) (NH₄)₂CO₃

Ammonium carbonate

6) MnBr₂

Manganese bromide

7) Na[MnO₄]

Sodium permanganate

8) P₂O₅

Phosphorus pentoxide

9) CCl₄

Carbon tetrachloride

10) Fe(OH)₂

Iron(ii) hydroxide

8 0
3 years ago
Forrest spills some acid on the lab floor. He notifies his teacher and begins to look for baking soda to neturalize the acid on
gregori [183]
His classmates should be notified next
7 0
3 years ago
Read 2 more answers
Other questions:
  • Which of these are examples of physical changes? Check all that apply. burning wood freezing water cutting paper iron rusting mi
    5·2 answers
  • Carbon-14 emits beta radiation and decays with a half-life (t ) of 5730 years. Assume that you start with a mass of 6.00 × 10^–1
    6·2 answers
  • who arranged the elements according to atomic mass and used the arrangement to predict the properties of missing elements?
    9·2 answers
  • A student is asked to standardize a solution of barium hydroxide. He weighs out 0.978 g potassium hydrogen phthalate (KHC8H4O4,
    9·1 answer
  • Ammonia is produced by the Haber process, in which nitrogen and hydrogen are reacted directly using an iron mesh impregnated wit
    9·1 answer
  • Why is NH3 polar but CH4 non polar
    5·1 answer
  • Please help on how to solve this problem it’s for isotopes
    10·1 answer
  • Find the odd one out of --retina,cochlea,ciliary muscles,cornea​
    8·1 answer
  • BRANLIEST NO EXPLANATION NEEDED.
    12·2 answers
  • If charcoal and sugar were the the main impurities present in crude acetanilide would recrystallisation from water be a good met
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!