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
e-lub [12.9K]
2 years ago
15

Please help me I will give you the brain thing with extra points if you help me, please. I need to get this right. 8/10

Chemistry
2 answers:
Wewaii [24]2 years ago
8 0

Answer:

40 km

Explanation:

I learned this in the 8th grade..

<3

8_murik_8 [283]2 years ago
5 0

Answer:

C) 40km/hr

Explanation:

1 hour= 60 min

30 times 2= 60

20 times 2=40

40km/60 min

40km/hr

You might be interested in
How many grams of aluminum will<br> react fully with 1.25 moles Cl₂?
Liula [17]

2Al + 3Cl₂ → 2AlCl₃

mol Al = 2/3 x 1.25 = 0.83

mass Al = 0.83 x 27 g/mol = 22.41 g

3 0
2 years ago
How many moles of oxygen are needed to burn 425g of sulfur
Anika [276]
I believe 212.5m, but I may be wrong, I’m a little rusty with moles
3 0
2 years ago
Read 2 more answers
What mass of copper sulphate dissolves in 100g of water at 70 °C​
ValentinkaMS [17]

The answer mass of copper sulphate is

46g

6 0
2 years ago
Plz help! :) :D I will mark you as BRAINLIEST!!!
nadezda [96]

Answer:

Some of the physical and chemical properties of magnesium are:

-The term ‘magnesium’ is derived from the Greek word magnesia, which refers to the name of the place from where it was extracted.

-Magnesium is closely related to manganese and magnetite.

-About 2.1% of the Earth’s crust contains magnesium. This makes magnesium the 6th most found element.

-The biggest deposits of magnesium is found in the seawater. It has been calculated by scientists that a cubic mile of seawater contains about 6 million tons of this element

2nd answer:

Physical Properties of Magnesium: ”I’m a highly stable element, so you can count on me”

Chemical Properties of Magnesium: ”I love to travel but I do corrode aluminum so we won’t be flying off on adventures in airplanes planes anytime soon

Explanation:

Hope this helps you out! UwU

8 0
3 years ago
What is the term for a fine grained soil deposited by the wind
balandron [24]

I think it is called a loess. Please correct me if I am wrong.

4 0
3 years ago
Other questions:
  • What is the very small center core of an atom is called?
    7·2 answers
  • A 0.9182 g sample of CaBr2 is dissolved in enough water to give 500 ml of solution. what is the calcium ion concentration in thi
    11·1 answer
  • Theory that the lithosphere is divided into tectonic plates that slowly move on
    10·1 answer
  • Match each chemical with the correct use.
    8·2 answers
  • How would u describe the cells that make up the parts of your eye?​
    12·1 answer
  • The rate of effusion of a particular gas was measured and found to be 24.0 mL/min. Under the same conditions, the rate of effusi
    5·1 answer
  • The property of metals to be made into wire is called
    8·1 answer
  • Calculate the molar mass of the acid.
    10·1 answer
  • How many molecules of H,0 can be produced from 0.918 mol NO, according to the balanced equation?
    12·1 answer
  • A balloon contains a 10% glucose solution. The balloon is permeable to water but not to glucose. A beaker contains a 5% glucose
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!