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
Basile [38]
3 years ago
6

Which tool is used to measure mass?

Chemistry
2 answers:
sashaice [31]3 years ago
7 0

Answer: The Awnser Is B. Balance

Explanation:

kherson [118]3 years ago
3 0

Answer: c. balance

Explanation: Mass is the amount of matter contained in a body.

You might be interested in
When an atom gains a valence electron, it become a (n)_____ion.
Lilit [14]

An atom that gains electrons and becomes negatively charged is known as an <u>anion</u><u>.</u>

Hope it helps!

4 0
3 years ago
Convert 131 ft^3 to mm^3
erik [133]
3.71 × 10^9 cubic millimeters
4 0
4 years ago
Read 2 more answers
When the wedges are removed, the cars will move. Predict which direction they will move and when they will stop.
timofeeve [1]

Answer:

they will move and stop

3 0
4 years ago
What molecule is responsible for chemical digestion.
padilas [110]

Answer:

Amylase.

Explanation:

The process of digestion begin to start in mouth when food mix with saliva. An enzyme is released which is called Amylase help in digestion of carbohydrates.

8 0
3 years ago
Calculate the pH for the following weak acid. A solution of HCOOH has 0.12M HCOOH at equilibrium. The Ka for HCOOH is 1.8×10−4.
Shtirlitz [24]

Answer:

the pH of HCOOH solution is 2.33

Explanation:

The ionization equation for the given acid is written as:

HCOOH\leftrightarrow H^++HCOO^-

Let's say the initial concentration of the acid is c and the change in concentration x.

Then, equilibrium concentration of acid = (c-x)

and the equilibrium concentration for each of the product would be x

Equilibrium expression for the above equation would be:

\Ka= \frac{[H^+][HCOO^-]}{[HCOOH]}

1.8*10^-^4=\frac{x^2}{c-x}

From given info, equilibrium concentration of the acid is 0.12

So, (c-x) = 0.12

hence,

1.8*10^-^4=\frac{x^2}{0.12}

Let's solve this for x. Multiply both sides by 0.12

2.16*10^-^5=x^2

taking square root to both sides:

x=0.00465

Now, we have got the concentration of [H^+] .

[H^+] = 0.00465 M

We know that, pH=-log[H^+]

pH = -log(0.00465)

pH = 2.33

Hence, the pH of HCOOH solution is 2.33.

7 0
3 years ago
Read 2 more answers
Other questions:
  • some infrared radiation reaches earth and sum does not with part does reach earth longer wave length or short wave length
    14·1 answer
  • The total pressure of a mixture of hydrogen, oxygen, and methane is 96.4 kPa. The partial pressures of hydrogen and oxygen are 1
    5·2 answers
  • Balancing equations <br> nahco3 = na2co3 + co2 + h2o
    5·1 answer
  • When heated, lithium reacts with nitrogen to form lithium nitride: 6Li(s) + N2(g) → 2Li3N(s) What is the theoretical yield of Li
    14·1 answer
  • A pure substance that cannot be broken down into any other substance by a physical or chemical means is a (n) ______
    13·2 answers
  • How is molar mass used in some stoichiometric calculations?
    9·1 answer
  • 1)Explain why the overall charge of a nucleus positive ?
    13·1 answer
  • Is cell membrane a plant or animals cell
    13·1 answer
  • 6
    11·1 answer
  • the chemical bonds that form when atoms that have lost electrons are electrically attracted to atoms that have gained electrons
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!