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
leonid [27]
4 years ago
12

What is a asteroid/ in a sentence plz

Chemistry
2 answers:
dlinn [17]4 years ago
4 0

Asteroids are large lumps of icy rock or metal moving around the Sun. Asteroids come in all different shapes and sizes. A few asteroids are as big as a small country.

loris [4]4 years ago
3 0
Definition - a small rocky body orbiting the sun
Sentence - asteroids are known to be in space
You might be interested in
Calculate the heat (in calories) required to freeze 35.0 g of water.
Serggg [28]

Answer:

-2.79 × 10³ cal

Explanation:

Step 1: Given data

  • Mass of water (m): 35.0 g
  • Latent heat of fusion of water (L): -79.7 cal/g

Step 2: Calculate the heat required to freeze 35.0 g of water

We have 35.0 g of liquid water and we want to freeze it, that is, to convert it in 35.0 g of ice (solid water), at 0 °C (melting point). We can calculate the heat (Q) that must be released using the following expression.

Q = L × m

Q = -79.7 cal/g × 35.0 g

Q = -2.79 × 10³ cal

4 0
4 years ago
What is the temperature increase of 6.4 kg of water when it is heated by a 7.7
lianna [129]
If you measure my hairline you will get about 90°
3 0
3 years ago
On the basis of oxidation number consideration which of the following does not react with molecular oxygen no ,n2o,so2,so3,p4o6
sesenic [268]
N oxidation number in N₂O = 1
S oxidation number in SO₂ = 4
S oxidation number in SO₃ = 6
P oxidation number in P₄O₆ = 3
Therefore, the Sulfur in SO₃ will not react with molecular oxygen as Sulfur is already using all of its valence electrons in bonding.
8 0
3 years ago
A mouse is placed in a sealed chamber with air at 769.0 torr. This chamber is equipped with enough solid KOH to absorb any CO2 a
svlad2 [7]

<u>Answer:</u> The amount of oxygen gas consumed by mouse is 0.202 grams.

<u>Explanation:</u>

We are given:

Initial pressure of air = 769.0 torr

Final pressure of air = 717.1 torr

Pressure of oxygen = Pressure decreased = Initial pressure - Final pressure = (769.0 - 717.1) torr = 51.9 torr

To calculate the amount of oxygen gas consumed, we use the equation given by ideal gas which follows:

PV=nRT

where,

P = pressure of the gas = 51.9 torr

V = Volume of the gas = 2.20 L

T = Temperature of the gas = 292 K

R = Gas constant = 62.364\text{ L. Torr }mol^{-1}K^{-1}

n = number of moles of oxygen gas = ?

Putting values in above equation, we get:

51.9torr\times 2.20L=n\times 62.364\text{ L. Torr }mol^{-1}K^{-1}\times 292K\\\\n=\frac{51.9\times 2.20}{62.364\times 292}=0.0063mol

To calculate the mass from given number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}

Moles of oxygen gas = 0.0063 moles

Molar mass of oxygen gas = 32 g/mol

Putting values in above equation, we get:

0.0063mol=\frac{\text{Mass of oxygen gas}}{32g/mol}\\\\\text{Mass of oxygen gas}=(0.0063mol\times 32g/mol)=0.202g

Hence, the amount of oxygen gas consumed by mouse is 0.202 grams.

5 0
3 years ago
What is the oxidation state of each individual carbon atom in c2o42−?
MA_775_DIABLO [31]

Answer:

+3

Explanation:

The oxygen all have a -2 oxidation state. (peroxides are exceptions)

The chemical structure is symmetrical. Both carbon are equivalent.

2 (oxidation state of carbon) + 4 (oxidation state of oxygen) = charge of ion.

2 (oxidation state of carbon) + 4 (-2) = -2

oxidation state of carbon = +3

7 0
3 years ago
Read 2 more answers
Other questions:
  • Which net ionic equation describes the reaction between K3PO4(aq) when it is mixed with Al(NO3)3(aq)?
    8·1 answer
  • I need help with a chemistry question
    10·1 answer
  • Write word and formula equations for the reaction of naoh and h3po4
    13·1 answer
  • The stinking tube used to collect sap to produce maple syrup in Vermont may contain toxicological compounds that can potentially
    5·1 answer
  • Can someone please help
    6·1 answer
  • Lastly, Snape thinks we should try one more calculation. What is the retention factor if the distance travelled by the solvent f
    10·1 answer
  • Which molecule has a nonpolar covalent bond?
    8·2 answers
  • When 551. mg of a certain molecular compound X are dissolved in 100 g of benzonitrile (CH,CN), the freezing point of the solutio
    10·1 answer
  • Based on the trend in the table, hypothesize what the volume of the sample at 400K would be.
    10·1 answer
  • The common military explosive PETN (C5H8N4O12) belongs to the same chemical family as nitroglycerin, a
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!