Ask question

Ask question

All categories

aleksandr82 [10.1K]

4 years ago

5

li states that sodium phosphate is a mixture because it is composed of both sodium ions and phosphate ions. Which is the best an

alysis of Eli’s statement?

1 answer:

Anuta_ua [19.1K]4 years ago

3 0

It is incorrect because the two types of ions in sodium phosphate cannot be seen.

You might be interested in

Why do people walks bare feel pain

matrenka [14]

Answer:

As we age the fat pad underneath the bones at the front of our feet (metatarsal heads) and under the heel bone become thinner or “migrate” away from where they are most needed

8 0

3 years ago

How much will stretch a spring that has spring constant of 735 N/m, if you vertically hung a 2. 30 kg object from it. How much w

otez555 [7]

Answer:

Part 1 = 0.03m, Part 2 = 1.4651J

4 0

3 years ago

Read 2 more answers

Which graph represents the solution set of the system of inequalities?<br><br> {−2x+y≤4y>x+2

Jet001 [13]

Answer:

The fourth graph is the answer

Explanation:

We have inequalities

$-2x+y\leq 4$ $\rightarrow y\leq 2x+4$

$y>x+2$

For the first inequality all points at or below the graph of y are solutions, and for the second inequality all the points above the graph of y are the solutions. So, the solution to these inequalities are points that are above the graph of $y>x+2$ and below the graph of $y\leq 2x+4$ . The shaded region in the fourth graph satisfies these conditions.

<em>Looking at other choices, we see that the first two graphs do not even represent the graphs of our inequalities, and the third graph does represent the inequalities but shades the wrong region. </em>

P.S: the graph of the inequality $y>x+2$ is dashed because $y$ is "greater than" and not "equal to" $x+2$ , so this indicates that the values on the line $y=x+2$ are not included. And the graph of the inequality $y\leq 2x+4$ is a solid line because $y$ is "less than or equal to" $2x+4$ , so we are including the values on the line $y=2x+4$ , and that's why it's solid.

6 0

3 years ago

Read 2 more answers

A leopard of mass 65kg climbs 7m up a tall tree. Calculate how much gravitational potential energy it gains. Assume g=10N/kg.

lisabon 2012 [21]

Answer: 4550 Joules

The formula for potential energy in gravitational field is as follows:

$E_{pot} = mgh=65kg \cdot 10 \frac{N}{kg} \cdot 7m = 4550 J$

5 0

4 years ago

Differentiate convection and conduction class 7

BARSIC [14]

Answer:

While conduction is the transfer of heat energy by direct contact, convection is the movement of heat by actual motion of matter

Explanation:

5 0

3 years ago