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
Shtirlitz [24]
3 years ago
15

PLEASE HELP QUICK

Chemistry
1 answer:
Mariulka [41]3 years ago
6 0

Answer:

When the partially positive end of one water molecule is attracted to the partially negative end of another water molecule

Explanation:

You might be interested in
What is the mass number of an isotope with an atomic number of 57 and that has 69 neutrons?
Karolina [17]

Answer:

mass number=126

Explanation:

57+69=126

7 0
2 years ago
Someone please help me with number 5. no idea what it is.
KATRIN_1 [288]
Answer is Sodium Hydroxide.
5 0
3 years ago
Task Card #1
kumpel [21]

Answer:

B. Gas formation

Explanation:

When you combine baking soda and vinegar - which I'm assuming happened to create this reaction - it forms carbon dioxide, a gas.

5 0
3 years ago
An important step in science is supporting a theory or idea without data. The questions we ask determine the type of data we col
san4es73 [151]

Answer:

What will happen to Uk if you double the mass?

Explanation:

Uk = 0.5 * m * v²

You see that both m and v are variable, which means that both m and v can be any number. Regardless of the numbers you put in for m or v, the formula to calculate the kinetic energy (Uk) remains valid.

You could ask

1. What will happen to Uk if you double the mass?

2. What will happen to Uk if you double the velocity?

please see and understand(!) that the relationship between Uk an v² is indeed the velocity squared....

EXTRA

Uk = 0.5 * m * (v)²

Suppose the m = 3kg and velocity = 5 m/s

What is the Uk?

Well if you know the formula you can use your calculator to find out:

Uk = 0.5 * m * (v)²

Uk = 0.5 * 3 * (5)²

Uk = 0.5 * 3 * 25

Uk = 37.5 kgm/s²

Again you ask what will happen to Uk if you double the velocity?

At first it was 5 m/s and now it doubles, which means it now has that value *2

The new velocity is 5 *2 = 10 m/s

Uk = 0.5 * m * (v)²

Uk = 0.5 * 3 * (10)²

Uk = 0.5 * 3 * 100

Uk = 150 kgm/s²

150 = 4 * 37.5

So now you see that if you double your velocity, the Uk will be 2² = 4 times as big !

3 0
3 years ago
Water is unique because the density of it's solid is less than the density of it's liquid. Describe how life would be different
Andreas93 [3]

Ice caps would float therefore providing insulation for aquatic life and ensuring they do not freeze due to the cool temperature.

6 0
3 years ago
Other questions:
  • Can you place the following elements in order of decreasing atomic size: selenium, chlorine, fluorine, rubidium, calcium, and su
    14·2 answers
  • A machine shop worker records the mass of an aluminum cube as 176g. if one side of the cube measures 4 cm,what is the density of
    15·1 answer
  • A chemical reaction is carried out in a closed container. The energy absorbed by the chemical reaction is 50 kJ. What is the ene
    7·1 answer
  • Moseley made revisions to the periodic table that resolved some of the problems with Mendeleev's version. Which of these was a r
    7·1 answer
  • Find the simple interest on a $22,000 principal, deposited for 4 years at a rate of 4.25%
    5·1 answer
  • How do chemists express the rates of chemical reactions
    13·2 answers
  • 1.36x10^22molecules Fe2O3 to grams
    14·1 answer
  • 1. According to the equation, what mass of hydrogen fluoride is necessary to produce 2.3 g of sodium fluoride?
    7·1 answer
  • 21. a. Describe why there is a difference in bond angles between H20 and CH4. (2 pts)
    8·1 answer
  • PLS HELP ME, use the periodic table to write the electron configuration of selenium
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!