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
Mnenie [13.5K]
3 years ago
6

How is volume calculated given mass and density? (4 points)

Chemistry
2 answers:
AysviL [449]3 years ago
5 0

Answer: 5.6

Explanation: 3 over the 4 to the 7;2.4    you get 5.6

lianna [129]3 years ago
3 0
It’s mass divided by volume. A helpful thing to use is the triangle of power where the M (mass) is on top and the D(density) and v(volume) is on the bottom.
You might be interested in
Assume that the maximum number of ATPs is produced (38). At pH 7, and in the presence of excess Mg2 , how much of the energy in
Lubov Fominskaja [6]

In one mole of glucose 38 ATP energy is stored this accounts for only 40 per-cent of the total energy in glucose.

Explanation:

In standard conditions, during the cellular respiration 1 mole of Glucose in the presence of oxygen produces 36 or 38 ATPs. This accounts for only 40% of the total energy as the remaining 60 per-cent of the energy is dissipated as heat.

I mole of glucose enters the glycolysis step of aerobic cellular respiration which after oxidative phosphorylation and Electron transport chain would give 38 ATP molecules.

It can be said that only 38.3% of energy is put in ATP molecules.

8 0
3 years ago
Balance the following equations: (c) H2(g)+I2(s)⟶HI(s)H2(g)+I2(s)⟶HI(s)
kenny6666 [7]

Answer: H_2(g)+I_2(g)\rightarrow 2HI(s)

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

Thus in the reactants, there are 2 atoms of hydrogen and 2 atoms of iodine .Thus there has to be 2 atoms of hydrogen and 2 atoms of iodine in the product as well. Thus a coefficient of 2 is placed in front of HI.

The balanced chemical reaction is:

H_2(g)+I_2(g)\rightarrow 2HI(s)

6 0
3 years ago
Please help me with my 8th grade chemistry, I'm really confused
saveliy_v [14]

Answer:

The answer would be C, in both chemical and physical change, because everything is made up of matter. So if you have a chemical or physical change, that doesent change the total mass of your product ever.

Explanation:

7 0
3 years ago
Convert the following with the correct number of significant figures:
larisa [96]

Answer:

1.78 × 10⁹ μg

Explanation:

We have to convert 1.78 kg to μg.

Step 1: Convert 1.78 kilograms to grams

We will use the conversion factor 1 kg = 10³ g.

1.78 kg × 10³ g/1 kg = 1.78 × 10³ g

Step 2: Convert 1.78 × 10³ grams to micrograms

We will use the conversion factor 1 g = 10⁶ μg.

1.78 × 10³ g × 10⁶ μg/1 g = 1.78 × 10⁹ μg

8 0
2 years ago
What is the formula for the polyatomic ion and name the following compound<br>Sn(NO2)2​
garri49 [273]
There are 9 polyatomic ions so which one and the compound “Sn(NO2)2 is Tin(ll) Nitrite
3 0
3 years ago
Read 2 more answers
Other questions:
  • Circle the letter of each expression that has four significant figures. <br> a. 1.25 104 b. 12.51
    15·1 answer
  • Why does common table salt (NaCl) have a high melting point?
    8·2 answers
  • Elements are placed in the same column of the periodic table because they share the same number of valance electrons. Please sel
    12·2 answers
  • A student has a rectangular block. It is 2 cm wide. 3 cm tall and 25cm long. It has a mass of 600 g. First, calculate the volume
    14·1 answer
  • Complete each of the following nuclear reactions by determining the missing particle, then name that particle("alpha particle" o
    10·1 answer
  • You must make 1 L of 0.2 M acetic acid (CH3COOH). All you have available is concentrated glacial acetic acid (assay value, 98%;
    10·1 answer
  • A hot metal plate at 150°C has been placed in air at room temperature. Which event would most likely take place over the next fe
    7·1 answer
  • Reaction 1: Solid sodium hydroxide dissolves in water to form an aqueous solution of ions. ????????????H(????) → ????????+(?????
    8·1 answer
  • What mass of nacl is in 0.600 l of 0.250 m solution?
    5·1 answer
  • Consider the reaction of NH3 and I2 to give N2 and HI.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!