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
Travka [436]
3 years ago
6

Please help im really stressed and doing 2 tests at the same time

Chemistry
2 answers:
DanielleElmas [232]3 years ago
7 0
The answer is A, good luck
jok3333 [9.3K]3 years ago
3 0
The answer is A because the minerals needed to make a phone is found underground only. Hope this helps if so mark me the brainiest!!
You might be interested in
100 POINTS !!!! TO RIGHT AWNSER!!!
Alecsey [184]
The answer is going to be C) because 
A)We know that she put all three boxes in the window and let them sat their for a hour
B)We know that the boxes are the same size
C)She used three different materials,and she wants to measure the warmth of each box. To see which one is the warmest 
D)She never said anything about mass
Hopes This Helps:)
3 0
3 years ago
Read 2 more answers
The sun's inner core is the hottest part of the sun<br><br> true or false
harkovskaia [24]
False heat rises upwards therefore the hottest part of the sun would be upwards
3 0
3 years ago
Read 2 more answers
Which layer of the earth is the thinnest and thickest?
Xelga [282]

Answer:

crust

Discuss with the whole class what the relative thicknesses of the layers are — that the inner core and outer core together form the thickest layer of the Earth and that the crust is by far the thinnest layer.

Explanation:

Discuss with the whole class what the relative thicknesses of the layers are — that the inner core and outer core together form the thickest layer of the Earth and that the crust is by far the thinnest layer.

6 0
3 years ago
Boyles Law P1V1 = P2V2
arsen [322]

Answer:

A. The balloons will increase to twice their original volume.

Explanation:

Boyle's law states that the pressure exerted on a gas is inversely proportional to the volume occupied by the gas at constant temperature. That is:

P ∝ 1/V

P = k/V

PV = k (constant)

P = pressure, V = volume.

P_1V_1=P_2V_2

Let the initial pressure of the balloon be P, i.e. P_1=P, initial volume be V, i.e. V_1=V. The pressure is then halved, i.e. P_2=\frac{P}{2}

P_1V_1=P_2V_2\\\\P*V=\frac{P}{2} *V_2\\\\V_2=\frac{2*P*V}{P}\\\\V_2=2V

Therefore the balloon volume will increase to twice their original volume.

3 0
2 years ago
If you need to measure the mass of a greeting card you are sending to a friend through the mail, what unit of measurement would
erica [24]
You would use grams to measure ot
4 0
2 years ago
Other questions:
  • How many moles of br2(l) (mm = 159.80 g/mol) are in 13.9 ml of liquid bromine? the density of br2(l) is 3.12 g/ml?
    11·1 answer
  • Write a balanced equation for each of these chemical reactions potassium phosphate + calcium nitrate
    8·1 answer
  • What mass of oxygen would be produced upon thermal decomposition of 25 g of potassium chlorate (kclo3)? the molecular weight (mw
    7·1 answer
  • The percent yield of a chemical reaction is
    13·2 answers
  • Which chemical equation represents the reaction of an Arrhenius acid and an Arrhenius base?
    11·2 answers
  • Clasifica los siguientes elementos en metales, no metales, metaloides , o gases , nobles : flúor , azufre , nitrogeno , cloro ,
    12·2 answers
  • Which of these is an example of a chemical change?
    11·1 answer
  • Make a poem about compounds​
    9·1 answer
  • 4. What is the common name of the compound CaOCI,?​
    11·1 answer
  • What is the phase of water at 1.0 atm and 50°C?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!