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
marshall27 [118]
3 years ago
5

Two samples of calcium fluoride are decomposed into their constituent elements. the first sample produced 0.154 g of calcium and

0.146 g of fluorine. if the second sample produced 294 mg of fluorine, how many g of calcium were formed? 0.309 g 3.09 × 102 g 3.13 g 0.280 g 2.80 × 102 g
Chemistry
1 answer:
Alex_Xolod [135]3 years ago
7 0
<span>When a compound is decomposed into constituent elements, the amount of elements produced will remain in the same proportion every time it is decomposed. When the second sample of calcium fluoride is decomposed, the proportion of calcium and fluorine should remain same as first time. Hence, calcium produced = 294 * 0.154/0.146 = 309 mg or 0.309 g</span>
You might be interested in
Why is foam fight chemical or a physical change
nata0808 [166]

Answer:

Foam fight is a chemical change.

Explanation:

Please give me brainliest :)

4 0
3 years ago
Read 2 more answers
24 POINTS!!!!!!!!!!
Oliga [24]
Your answer is going to be A, because it was shoved harder, it will go faster

8 0
3 years ago
Read 2 more answers
HURRY HELP 10 POINTS ILL GOVE BRAINLIEST I HAVE TO PASS PICTURE PROVIDED
kramer

Answer:

C₃H₄O₄

Explanation:

In order to get the empirical formula of a compound, we have to follow a series of steps.

Step 1: Divide the percent by mass of each element by its atomic mass.

C: 34.6/12.01 = 2.88

H: 3.9/1.01 = 3.86

O: 61.5/16.00 = 3.84

Step 2: Divide all the numbers by the smallest one, i.e., 2.88

C: 2.88/2.88 = 1

H: 3.86/2.88 ≈ 1.34

O: 3.84/2.88 ≈ 1.33

Step 3: Multiply all the numbers by a number that makes all of them integer

C: 1 × 3 = 3

H: 1.34 × 3 = 4

O: 1.33 × 3 = 4

The empirical formula is C₃H₄O₄.

5 0
3 years ago
Describe how you could prove that a bicycle is matter
Ainat [17]

Answer:

Explanation:

Matter is anything that has weight and occupies space.

To prove that a bicycle is a matter, we need to show that it has weight and will occupy space.

When you put the bicycle on a weighing scale, you will see the weight of the bicycle. This a proof that bicycle is a matter.

To show that the bicycle can occupy space, place the device in a tank full of water. From the tank, the bicycle will displace some water. Substances that cannot occupy space will not behave in such manner.

5 0
3 years ago
A patient needs to take 875mg twice daily The pills in the bottle are each 250mg How many pills does she wants to take 875mg
Angelina_Jolie [31]

Answer:

3.5 pill need to taken for completing dosage of 875 mg

Explanation:

Total dosage of medicine to be taken in a day

= 2 * 875 \\= 1750mg

Total weight of one pill = 250 mg

Number of pills required is equal to total dosage of medicine divided by the weight of one pill.

Hence,

Number of pills

= \frac{875}{250} \\= \frac{175}{50} \\= \frac{35}{10} \\= 3.5

6 0
3 years ago
Other questions:
  • Which separation method would be most successful in separating the components of a homogeneous mixture?
    7·2 answers
  • Consider a generic redox reaction?
    14·1 answer
  • The temperature of a substance increases when the ____________________ energy of the substance increases.
    10·2 answers
  • Is H2O a polar or non polar compound?
    8·2 answers
  • Potassium hydroxide is classified as an arrhenius base because koh contains
    13·1 answer
  • Coal like graphite is composed of carbon. Unlike graphite, coal is formed by decayed, once living matter. Is it a mineral?
    8·1 answer
  • Is it possible to ever separate the components of a mixture
    12·2 answers
  • Why is the liquid oxygen machine producing less liquid oxygen than normal?
    14·2 answers
  • Which of the following aligns with the definition of Arrhenius acids?
    7·1 answer
  • How many valence electrons are in Lead(IV)
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!