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
lapo4ka [179]
2 years ago
8

Please help me vote you in both questions for a can vote you brainiest

Chemistry
1 answer:
swat322 years ago
8 0

Answer:

2. B

3. B

Explanation:

The Newton’s first Law states that: “An object will remain at rest or in uniform motion in a straight line unless acted upon by a external force.”

You might be interested in
Explain how a neutral paper fragment can be attracted to a charged rod
Yuliya22 [10]

Answer:

The particles in the neutral paper can shift, causing the paper to become polarized and attracted to the rod.

Explanation:

The neutral paper has an even distribution of its electrons throughout the paper. If a charged rod is brought near the neutral paper, this can cause the electrons in the paper to shift. If the rod is negative, the electrons will be repelled from the rod and cause the molecules in the paper to have a slight positive charge on the part of the paper closest to the rod. If the rod is positive, the electrons will be attracted to the rod and cause a slight negative charge on the side of the paper closest to the rod.

3 0
3 years ago
Can someone help me with this question?
Softa [21]

Answer:

5 , I think. sorry if its wrong

8 0
2 years ago
If the mass is 6.5g, and the volume is 25mL.. what is the density? PLEASE ANSWER ASAP
julia-pushkina [17]

Answer:

p = 260 kilogram/cubic meter

Explanation:

ρ =  \frac{m}{V} \\

  = \frac{6.5 g}{25mL}

=  0.26 gram/milliliter

=  260 kilogram/cubic meter

7 0
3 years ago
Which of the following is not a correct chemical equation for a double displacement reaction?
Step2247 [10]

Answer:

B. CaCl + LiCO3 yields CaCO3 + LiCl is not correct

It should be CaCl2 + Li2CO3  → 2LiCl + CaCO3

Explanation:

For a reaction to be double displacement reaction there are two things we need to look for

1) There must be an interchange of the group of ions

2) The reactants must dissolve in water to release ions

A. 2RbNO3 + BeF2 yields Be(NO3)2 + 2RbF

2Rb+ + NO3- + Be^2+ + 2F- → Be(NO₃)₂ + 2RbF

This is correct

B. CaCl + LiCO3 yields CaCO3 + LiCl

This is not correct

The correct equation is:

CaCl2 + Li2CO3  → Ca2+ + 2Cl- + 2Li+ + CO3^2-  → 2LiCl + CaCO3

C. Na3PO4 + 3KOH yields 3NaOH + K3PO4

3Na+ + PO4^3- + 3K+ + 3OH- → 3NaOH + K3PO4

This is correct

D. 2MgI2 + Mn(SO3)2 yields 2MgSO3 + MnI4

2Mg^2+ + 4I- + Mn^4+ + 2SO3^2- → 2 MgSO3 + MnI4

This is correct

8 0
3 years ago
Earth rotates once every 24 hours. What does this mean?
prohojiy [21]
B- Earth completes a full spin on its axis once every 24 hours.
6 0
3 years ago
Other questions:
  • Is mixing salt and pepper physical or chemical change ?
    13·1 answer
  • Why would a student use rate laws in this investigation
    10·1 answer
  • How many classes for a sample of households groceries?
    5·1 answer
  • What element is this? How do you know?
    12·1 answer
  • About 20-25% of the 92 natural elements are known to be essential to life. which four of these elements make up approximately 96
    15·1 answer
  • Ron weasley isn't the best experimentalist. after an experiment he ends up with only 3.10 g of product. however, the same reacti
    12·1 answer
  • 20.0 g of Nitrogen is produced when oxygen gas reacts with NO gas. 29.8 L of oxygen is required at STP to produce this 20.0 g of
    11·1 answer
  • Ionic equation for Sr3(PO4)2 and its solubility product (Ksp)?​
    13·1 answer
  • What the concept of electronic transition​
    11·1 answer
  • How are reactivity patterns on the periodic table related to an element's use in everyday applications?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!