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
xz_007 [3.2K]
3 years ago
7

Can anyone help me with this? Even just a few answers would be helpful. I'm struggling a little bit

Chemistry
1 answer:
Zepler [3.9K]3 years ago
7 0
CaO is Calcium Oxide and is Ionic
You might be interested in
why do solids keep their shape and volume why do liquids keep only volume and why do gases not keep either shape or volume
kodGreya [7K]
Solids always have definite shape and definite volume because their particles are packed together. Liquids have a definite volume but not definite shape, because their particles still kinda tight but able to move around, and gases don’t have a definite shape nor volume, because their particles are crazy and go everywhere
6 0
3 years ago
Calculate the energy in joules and calories required to heat 25.0 g of water from 12.5C to 25.7C
Alex Ar [27]
The heat (Q) required to raise the temp of a substance is:<span>Q=m∗Cp∗ΔT</span><span> where m is the mass of the object (25.0g in this case), Cp is the specific heat capacity of the substance (for water Cp = 1.00cal/gC, or 4.18J/gC,
and Dt is the change in temp.
You'll have to solve this twice, once with the Cp in calories, and once with the Cp in joules.
</span><span>1380.72 Joules</span>
8 0
3 years ago
A recipe calls for 1.2 cups of oil. How many liters of oil is this?
Nadusha1986 [10]
.3 liters... im pretty sure this is correct!!
3 0
3 years ago
Read 2 more answers
A sample of copper absorbs 4.31E+1 kJ of heat, resulting in a temperature rise of 6.71E+1 °C. Determine the mass (in kg) of the
olga2289 [7]

Answer: 1.67 kg

Explanation:

The quantity of heat required to raise the temperature of a substance by one degree Celsius is called the specific heat capacity.

Q=m\times c\times \Delta T

Q = Heat absorbed=4.31\times 10^1kJ = 43100J   (1kJ=1000J)

m= mass of substance = ?

c = specific heat capacity = 0.385J/g^0C

Change in temperature ,\Delta T=T_f-T_i=6.71\times 10^1^0C=67.1^0C

Putting in the values, we get:

43100J=m\times 0.385J/g^0C\times 67.1^0C

m=1670g=1.67kg   (1kg=1000g)

Thus the mass (in kg) of the copper sample is 1.67

3 0
3 years ago
HELP Which of the following fractions can be used in the conversion of 32 m3 to the unit mm3?
poizon [28]
We know that each millimeter contains 10⁻³ meters. Writing this as a ratio:
1 mm : 10⁻³ m

We require a conversion from m³ to mm³, so we must take the cube of the ratio we have made:
1 mm³ = (10⁻³)³ m³

Therefore, the conversion used will be:
(1 mm / 10⁻³ m)³

When we multiply by this conversion, we will get:
32 m³ = 32 x 10⁹ mm³
7 0
3 years ago
Other questions:
  • If 0.45 mols of MnO2 can react with 0.28 moles of HCl, how many moles of Cl2 could be produced
    10·1 answer
  • Why are metals generally good conductors of electricity? 1. metals have more protons. 2. metals have strong bonding with other a
    10·2 answers
  • How do electrons differ from protons and neutrons?
    12·1 answer
  • 99 POINTS!!!
    15·2 answers
  • Express the density 5.6 g/cm3
    10·1 answer
  • Why is a solid recrystallized with the minimum of hot solvent?
    7·1 answer
  • 3x - 12 = 7x + 8 <br> -4x - 12 = 8 <br> -4x - 20 <br> X = -5
    12·1 answer
  • 5F248+ 2NH3(8) ► NF418 + 6HF
    13·1 answer
  • While spending the weekend in your cabin, you burn wood in your pot-bellied stove to heat a kettle of water for tea. Answer the
    15·2 answers
  • Which of the following processes is involved in the formation of sedimentary rocks?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!