CHEMISTRY MIDDLE SCHOOL

Which of the following categories of small bodies in the solar system does Ceres belong to? A. Dwarf planets
B. Comets
C. Meteoroids
D. Planets

Answers

Answer 1
Answer: Ceres is a dwarf planet, so A.

Related Questions

Jordan is doing a science fair project on the effect of music on the growth of tomatoes. He has two tomatoe plants,plant A and plant B, that he grows in a window and gives that same amount of water.plant A is exposed to classical music using headphones attached to the soil. Throughout the growth period, Jordan counts the number of tomatoes produced by each plant.What is the control group?What is the independent variable?What is the dependent variable?What should jordan's conclusion be?Jordan need to repeat this experiment, what should he do differently?
The model is made of an ionic compound of aluminum and chlorine. Aluminum has an oxidation number of 3 and chlorine has an oxidation number of -1. Based on the evidence, predict the chemical formula, chemical name and properties of the compound between aluminum and chlorine.
What does the letters say acnsrl spgeiclue: a tool used to measure force!
V\3. The atomic masses of any two elements contain the same number of _a. atomsb. gramsc. ionsd. milliliters
write the equation for the combined gas law using temperature in degree Celsius. explain why the Kelvin scale is convenient​

How would your body be affected if your pituitary gland was not working properly?

Answers

Inability to regulate filtration of urine thru the kidneys, inability to stimulate contraction of the womb during childbirth. Not able to help  breasts to release milk after childbirth.  Inability to properly regulate heart rate, blood pressure, temperature, metabolism.  Not able to trigger ovulation.  Abnormal cortisol levels.  

Sodium reacts with oxygen to produce sodium oxide.4Na(s) + O2(g) - - 2Na2O(s)
a. How many grams of Na20 are produced when 57.5 g of Na
reacts ?
b. If you have 18.0 g of Na, how many grams of O2 are
required for reaction?
c. How many grams of O2 are needed in a reaction that
produces 75.0 g of Na2O?

Answers

Answer:

Explanation:

a )

4Na(s) + O₂(g) - - 2Na₂O(s)

4 x 23g    32g           2x62

92 g of Na produces 124 g of Na₂O(s)

57.5 g of Na produces (124 / 92) x 57.5

= 77.5 g of Na₂O(s)

b )

92 g of Na requires 32 g of O₂

18 g of Na requires ( 32 / 92 ) x 18

= 6.26 g of O₂

c )

128 g of Na₂O(s) requires 32 g of O₂

75 g of Na₂O(s) requires ( 32 / 128 ) x 75

= 18.75 g of O₂

Which is the best description of Will Clark? A.
smart and patriotic

B.
careless and headstrong

C.
funny and easygoing

D.
nervous and untrustworthy

Answers

Ok so 1 i love your pic on profile and to answer you question (A)!
The answer SHOULD be A)

Which class of organic compounds contains nitrogen?(I) aldehyde
(2) alcohol
(3) amine
(4) ether

Answers

(3) amina ........................

Which label belongs in the region marked X?Chang makes the diagram below to compare Gay-Lussac's
law and Charles's law.
Gay-Lussac's Law Charles's Law
O involves changes in temperature
O has a constant volume
O shows an inversely proportional relationship
O does not involve pressure changes

Answers

Answer:

A) involves changes in temperature

Explanation:

The figure is missing, but I assume that the region marked X represents the region in common between Gay-Lussac's law and Charle's Law.

Gay-Lussac's law states that:

"For an ideal gas kept at constant volume, the pressure of the gas is directly proportional to its absolute temperature"

Mathematically, it can be written as

p\propto T

where p is the pressure of the gas and T its absolute temperature.

Charle's Law states that:

"For an ideal gas kept at constant pressure, the volume of the gas is directly proportional to its absolute temperature"

Mathematically, it can be written as

V\propto T

where V is the volume of the gas and T its absolute temperature.

By looking at the two descriptions of the law, we see immediately that the property that they have in common is

A) involves changes in temperature

Since the temperature is NOT kept constant in the two laws.

Andrea is going to the golf course.The golf course charges a flat rate of $5.00 plus $1.50 per bucket of 50 golf balls. When she arrives,she is offered a discount rate of $.50 for a bucket of 50 golf balls plus the same flat rate. Andrea has $8.25 to speed. How many more bucket of golf balls will Andrea be able to get with the discount?A. 2 buckets
B. 4 buckets
C. 6 buckets
D. 8 buckets

Answers

B. 4 buckets more if she opts to avail the discount.

Given:
Flat rate = 5
Variable rate = 1.50

Option 1: Without discount
5 + 1.50x = 8.25
1.50x = 8.25 - 5
1.50x = 3.25
x = 3.25/1.5
x = 2.17 ⇒ 2 buckets

Option 2: with discount. $0.50 per bucket
5 + 0.50x = 8.25
0.50x = 8.25 - 5
0.50x = 3.25
x = 3.25/0.50
x = 6.50 buckets ⇒ 6 buckets.

Option 1:   2 buckets
Option 2:   6 buckets
Difference: 4 more buckets if she chose option 2. WITH DISCOUNT
c. 6 buckets

flat rate = $5
golf balls = $.50

.5×6 = the three remaining dollars
Other Questions
Describe the conditions that are necessary for snow to fall
Based on the reactivities of the elements involved, which reaction will form products that are more stable than the reactants?A.2AlBr3 + 3Zn → 3ZnBr2 + 2AlB.CaBr2 + 2Na → 2NaBr + CaC.MgBr2 + H2 → 2HBr + MgD.BaBr2 + Ca → CaBr2 + BaE.2LiBr + Ba → BaBr2 + 2Li
Which statement describes one acid-base theory?(1) An acid is an H+ acceptor, and a base is an H+ donor. (2) An acid is an H+ donor,. and a base is an H+ acceptor. (3) An acid is an H- acceptor, and a base is an H-donor. (4) An acid is an H- donor, and a base is an H­ acceptor.
Which of the following statements is true?1. Dalton believed atoms were made mostly of empty space. 2. Plasmas have a net negative charge. 3. The number of protons in an element is always equal to the number of neutrons. 4. Solids have a fixed mass, volume, and shape.