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
Alexandra [31]
3 years ago
11

He chemical formula for lithium hydride is LiH A chemist determined by measurements that 0.0800 moles of lithium hydride partici

pate in a chemical reaction. Calculate the mass of lithium hydride that participates. Be sure your answer has the correct number of significant digits.
CAN SOMEONE HELP PLEASE
Chemistry
1 answer:
sweet-ann [11.9K]3 years ago
3 0

Answer:

Mark me brainlist I will then answer in comment

You might be interested in
PPLEASE HELP I WILL GIVE BRAINLIEST AND LOT OF POINTS
marysya [2.9K]

Answer:

Hi, even though this is really not a question or an answer to a question.

Explanation:

Do you know if any of this stuff involves 6th grade?

6 0
3 years ago
Read 2 more answers
216 J of energy is required to raise the temperature of a piece of aluminum from 15.0º C to to 35º C.
ddd [48]

Answer: 12g

Explanation:

The amount of energy (Q) required to raise the temperature of a substance depends on its Mass (M), specific heat capacity (C) and change in temperature (Φ)

Thus, Q = MCΦ

Given that:

Q = 216 joules

Mass of aluminium = ? (let unknown value be Z)

C = 0.90 JºC-1g-1

Φ = (Final temperature - Initial temperature)

= 35°C - 15°C = 20°C

Then, Q = MCΦ

216 J = Z x 0.90 JºC-1g-1 x 20°C

216 J = Z x 18 J°g-1

Z = (216J/18 J°g-1)

Z = 12g

Thus, the mass of the aluminium is 12grams

8 0
3 years ago
Sofia goes on a hike on a trail that is 10 km long. She starts at 2:00pm and ends at
Butoxors [25]

30 m/hrs (add me on discord if u have it Sipstic++#1460 )

8 0
3 years ago
Read 2 more answers
in an experiment 3.425g of lead oxide was reduced to form 3.105g of lead the empirical formula of the lead oxide is?​
Romashka-Z-Leto [24]

Answer:

Pb3O4

Explanation:

According to this question, 3.425g of lead oxide was reduced to form 3.105g of lead in an experiment. Since lead oxide contains both lead (Pb) and oxygen (O) element,

Mass of lead oxide = 3.425g

Mass of lead = 3.105g

Mass of oxygen = (3.425g - 3.105g) = 0.320g

Next, we convert each mass value to mole by dividing by respective molar mass

Pb = 3.105g ÷ 207.2 = 0.0149mol

O = 0.320g ÷ 16 = 0.02mol

Next, we divide each mole value by the smallest (0.0149)

Pb = 0.0149mol ÷ 0.0149mol = 1

O = 0.02mol ÷ 0.0149mol = 1.342

Multiply each ratio value by 3 to get:

Pb = 1 × 3 = 3

O = 1.342 × 3 = 4.026

The whole number ratio, approximately, of Pb and O is 3:4, hence, their empirical formula is Pb3O4.

4 0
2 years ago
What is the mass of 80.0mL of ethanol at 20 degress celcius
Oxana [17]

Answer: What is the mass, in grams, of 135 mL of ethanol? d=0.789 g/mL - the ethanol density. V=135 mL - the volume of ethanol. m=0.789g/mL*135mL=106.515g ~ 106.5g- the mass of ethanol.

Explanation:

Hope this helps :)

4 0
3 years ago
Other questions:
  • Propene. What does the name of this hydrocarbon tell you about it’s molecular structure?
    7·1 answer
  • This is a chemical process that uses light to process carbon dioxide in plants
    12·2 answers
  • Help can you match the answers to the definition PLZ Need this ASAP 30 points
    12·1 answer
  • NEED HELP ASAPPP<br><br> What is the number of beryllium atoms in 78.0g of Be?
    8·1 answer
  • RISD-QSA-SCI-CHEM-Units 7-12 Question: 1-1
    6·1 answer
  • Which statement is true about a reaction represented by a chemical equation that shows energy as a reactant?
    9·2 answers
  • What enzymes Break it down sugar ???
    5·1 answer
  • What is a saturated solution that cannot dissolve any more solute because it is too concentrated?
    15·1 answer
  • PLEASEEEE HELP MEEEEE
    14·2 answers
  • The highest energy occupied molecular orbital in the C-C bond of the C2 molecule is?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!